repor t resumes - files.eric.ed.gov · repor t resumes. ed 018 952. ... to itv distribution systems...
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REPOR T RESUMESED 018 952 EF 001 443THROUGH CABLE TO CLASSROOM, A GUIDE TO ITV DISTRIBUTIONSYSTEMS.BY.... LEWIS, WILLIAM C.
NATIONAL EDUCATION ASSN., WASHINGTON, D.C.
EDRS PRICE MF....$0.25 HC NOT AVAILABLE FROM EDRS. SIP.
DESCRIPTORS- *EDUCATIONAL TELEVISION, *ELECTRONIC EQUIPMENT,*TELEVISION, BUILDING EQUIPMENT, CLOSED CIRCUIT TELEVISION,EQUIPMENT, INSTRUCTIONAL TELEVISION, SCHOOL DESIGN,
THE BENEFITS OF MASTER ANTENNA TELEVISION SYSTEMS(HAVING CENTRAL ANTENNA AND AMPLIFIERS WITH CABLE CONNECTIONSTO CLASSROOM) ARE DISCUSSED WITH RESPECT TO OTHER SYSTEMS OFCLASSROOM TELEVISION. INCLUDED ARE COST CONSIDERATIONS, NEEDDETERMINATION, SCHOOL DESIGN, UTILIZATION OF EXISTINGEQUIPMENT, AND FUTURE DEVELOPMENTS. AN EXTENSIVE ILLUSTRATEDAPPENDIX OF DETAILS AND SPECIFICATIONS FOR SUCH SYSTEMS ISPROVIDED. THIS DOCUMENT IS AVAILABLE FROM THE NATIONALEDUCATION ASSOCIATION, 1201 SIXTEENTH STREET, N.W.,WASHINGTON, D.C. 20036, FOR $1.00. DISCOUNTS ON QUANITYORDERS- -10 PERCENT ON 2 -9 COPIES, 20 PERCENT ON 10 OR MORECOPIES. ALL ORDERS THAT AMOUNT TO $2.00 OR LESS MUST BEACCOMPANIED BY FUNDS IN PAYMENT. ORDER BY STOCK NUMBER071.412870. (JT)
1
PR
OC
ES
S W
ITH
MIC
RO
FIC
HE
AN
DP
UB
LIS
HE
R'S
PR
ICE
SM
ICR
OF
ICH
ER
EP
RO
DU
CT
ION
ON
L1'
(
Sing
le c
opy,
$1.
Dis
coun
ts o
n qu
antit
y or
ders
: 10
perc
ent o
n 2-
9 co
pies
; 20
perc
ent o
n 10
or
mor
eco
pies
. All
orde
rs th
at a
mou
nt to
$2
or le
ss r
oust
be a
ccom
pani
ed b
y fu
nds
in p
aym
ent.
Add
ress
com
mun
icat
ions
and
mak
e ch
ecks
pay
able
to th
eN
atio
nal E
duca
tion
Ass
ocia
tion,
120
1 Si
xtee
nth
Stre
et, N
.W.,
Was
hing
ton,
D.C
. 200
36. O
rder
by
Stoc
k N
umbe
r 07
1-02
870.
11
T
T R
OU
GH
CA
BLE
TC
LAS
SR
OO
M.
.
A G
UID
E T
OIT
VD
IST
RIB
UT
ION
SY
ST
EM
S
Per
mis
sion
to r
epro
duce
this
cop
yrig
hted
wor
k ha
s be
engr
ante
d to
the
Edu
catio
nal R
esou
rces
Info
rmat
ion
Cen
ter
(ER
IC)
and
to th
e or
gani
zatio
n op
erat
ing
unde
rco
ntra
ctw
ith th
e O
ffice
to E
duca
tion
to r
epro
duce
doc
umen
ts in
-cl
uded
in th
e E
RIC
sys
tem
by
mea
ns o
f mic
rofic
he o
nly,
but t
his
right
is n
ot c
onfe
rred
toan
y us
ers
of th
e m
icro
-fic
he r
ecei
ved
from
the
ER
IC D
ocum
ent
Rep
rodu
ctio
nS
ervi
ce.
Fur
ther
rep
rodu
ctio
n of
any
part
req
uire
s pe
r-m
issi
on o
f the
cop
yrig
ht o
wne
r.
PR
OC
ES
S W
ITH
MIC
RO
FIC
HE
AN
DP
UB
LIS
HE
R'S
PR
ICE
S.
MIC
RO
-F
ICH
ER
EP
RO
DU
CT
ION
ON
LY.
A D
epar
tmen
t of
Aud
iovi
sual
Ins
truc
tion
Publ
icat
ion
by:
Will
iam
C. L
ewis
Tec
hnic
al S
ervi
ces
Dir
ecto
rD
elaw
are
Edu
catio
nal T
elev
isio
n N
etw
ork
Edi
ted
by:
Hen
ry T
. Ing
leD
ivis
ion
of E
duca
tiona
l Tec
hnol
ogy,
NE
A
Cop
yrig
ht ©
196
7N
atio
nal E
duca
tion
Ass
ocia
tion
All
righ
ts r
eser
ved.
Lib
rary
of
Con
gres
s C
atal
og N
o. 6
7-30
678
Phot
os b
y W
illia
m C
. Lew
is
44
;
. 414.1
4
S.
7
44+70441,iri
A -44
Zr'ts.4
1.4
I4
Ack
now
ledg
men
ts
Sinc
ere
than
ks a
re d
ue to
man
y pe
ople
who
, alth
ough
they
may
neith
er e
ndor
se n
or a
ppro
ve a
ll th
at is
sai
d he
re, d
id c
ontr
ibut
eth
eir
idea
s. T
hese
are
: Mar
vin
Tha
ll an
d R
usse
ll G
imel
laro
of
the
Jerr
old
Ele
ctro
nics
Cor
pora
tion;
Rob
ert G
asio
rek
and
Jam
esW
eir
of th
e R
CA
Ser
vice
Com
pany
; Cha
rles
Son
nenb
erg
ofM
arco
Ele
ctro
nics
of
Phila
delp
hia;
Her
bert
L. M
arsh
of
the
Dia
mon
d St
ate
Tel
epho
ne C
ompa
ny; W
illia
m B
onne
r of
Dol
lar
Bon
ner
Bla
ke a
nd M
anni
ng, A
rchi
tect
s of
Wilm
ingt
on, D
ela-
war
e; E
vere
tt H
. Mill
er o
f E
wal
d an
d M
iller
Ass
ocia
ted
Con
-su
lting
Eng
inee
rs o
f Ph
ilade
lphi
a; H
L ,,
h M
ahaf
fey
of R
. P.
Scho
enija
hn, C
onsu
lting
Eng
inee
rs o
f W
ilmin
gton
; Don
ald
S.W
ason
of
Mar
tin W
ason
and
Ass
ocia
tes
of W
ilmin
gton
; and
Will
iam
E. C
arew
, Jr.
, of
Pope
Cru
se a
nd M
cCun
e A
rchi
tect
s,al
so o
f W
ilmin
gton
.T
hose
spe
cifi
cally
ass
ocia
ted
with
the
educ
atio
nal t
ele-
visi
on f
ield
who
con
trib
uted
are
: Guy
R. C
hess
er, F
ield
Sup
er-
viso
r of
the
Del
awar
e E
duca
tiona
l Tel
evis
ion
Net
wor
k; R
onSt
ewar
t of
the
Ken
tuck
y E
duca
tiona
l Tel
evis
ion
Aut
hori
ty;
Ric
hard
Old
ham
of
WG
BH
in B
osto
n; a
nd C
yril
M. B
raum
,C
onsu
lting
Eng
inee
r of
Was
hing
ton,
D.C
.
Will
iam
C. L
ewis
Tec
hnic
al S
ervi
ces
Dir
ecto
rD
elaw
are
Edu
catio
nal T
elev
isio
n
AB
OU
T T
HE
AU
TH
OR
Will
iam
C. L
ewis
Will
iam
C. L
ewis
is T
echn
ical
Ser
vice
s D
irec
tor
for
the
Del
a-w
are
Edu
catio
nal T
elev
isio
n N
etw
ork,
a c
lose
d-ci
rcui
t fac
ility
whi
ch p
rovi
des
tele
visi
on in
stru
ctio
n to
eac
h cl
assr
oom
inev
ery
publ
ic s
choo
l in
the
stat
e. T
he g
uide
lines
and
spe
cifi
ca-
tions
pre
sent
ed h
ere
are
a re
sult
of e
xper
ienc
es th
e au
thor
has
had
with
the
deve
lopm
ent o
f th
e D
elaw
are
ET
V s
yste
m a
ndot
her
inst
alla
tions
.
III
NIP
N- -0tO
' 0*
I."'"'"41d111.111..P
so,
Con
tent
s
AC
KN
OW
LED
GM
EN
TS
iii
Abo
ut th
e A
utho
riii
INT
RO
DU
CT
ION
2
WIR
ING
SC
HO
OLS
FO
R T
ELE
VIS
ION
3
Def
inin
g th
e P
roce
ss 3
Est
imat
ing
the
Sys
tem
Cos
ts4
Det
erm
inin
g Y
our
Tel
evis
ion
Dis
trib
utio
n N
eeds
6
Des
igni
ng th
e S
choo
l Pla
nt fo
r M
AT
V 9
Util
izin
g In
-Sch
ool C
lose
d- C
ircui
t Tel
evis
ion
and
MA
TV
10
Impl
emen
ting
and
Obt
aini
ng a
MA
TV
Sys
tem
10
Look
ing
at F
utur
e D
evel
opm
ents
in M
AN
12
AP
PE
ND
IX:
TE
LEV
ISIO
N D
IST
RIB
UT
ION
SY
ST
EM
GU
IDE
LIN
ES
13
Gui
delin
es 1
3
Exp
lana
tions
14
Spe
cific
atio
ns 1
5
Bib
liogr
aphy
44
Intr
oduc
tion
The
use
of
tele
visi
on in
the
clas
sroo
m h
as d
emon
stra
ted
that
stu
dent
s ca
n an
d do
lear
n as
wel
l fro
mte
levi
sion
as f
rom
con
vent
iona
lm
odes
of
inst
ruct
ion.
How
wel
l stu
-de
nts
lear
n fr
om a
ny m
ode
of in
stru
ctio
n,ho
wev
er, i
shi
ghly
dep
ende
nt o
n th
e co
mpe
tenc
y w
ith w
hich
the
par-
ticul
ar in
stru
ctio
nal s
yste
m is
des
igne
d. A
n ca
l.Prm
ate
and
effe
ctiv
e sy
stem
of
inst
ruct
ion
shou
ld e
volv
e fr
omju
dg-
men
ts b
ased
on
info
rmat
ion
abou
tth
e sy
stem
as
a w
hole
.In
the
case
of
tele
visi
on, t
his
mea
nsin
form
atio
n ab
out
both
its
tech
nica
l cap
abili
ties
and
its in
stru
ctio
nal
appl
ica-
tions
. The
Div
isio
n of
Edu
catio
nal T
echn
olog
y of
the
Na-
tiona
l Edu
catio
n A
ssoc
iatio
n, r
ecog
nizi
ng th
e va
lue
ofsu
ch a
con
side
ratio
n, h
as to
dat
e fo
cuse
d at
tent
ion
onth
epr
ogra
mm
ing
and
clas
sroo
m u
tiliz
atio
n as
pect
s of
tele
visi
onth
roug
h tw
o pu
blic
atio
ns: [
1] A
nd T
V to
o! a
nd [
2] I
nqui
ry:
Impl
icat
ions
for
Tel
evis
ed I
nstr
uctio
n. T
he te
chni
cal c
om-
plem
ent t
o th
ese
two
publ
icat
ions
is th
is b
ookl
et,
Thr
ough
Cab
le to
Cla
ssro
om.
..
A G
uide
to I
TV
Dis
trib
utio
n Sy
s-te
ms,
a D
AV
I pu
blic
atio
n w
hich
ser
ves
toou
tline
the
ne-
cess
ary
adm
inis
trat
ive
plan
ning
for
rou
ting
the
tele
visi
onpi
ctur
e to
the
clas
sroo
m r
ecei
ver
once
it h
asbe
en tr
ans-
mitt
ed to
the
scho
ol. I
ts e
mph
asis
is o
n th
e co
ncep
tof
Mas
ter
Ant
enna
Tel
evis
ion
syst
ems.
Thr
ough
Cab
le to
Cla
ssro
om is
the
conn
ectin
g lin
k w
hich
can
mak
e or
brea
k
2
the
impa
ct o
f te
levi
sion
on
lear
ning
, for
if th
ete
chni
cal
rece
ptio
n an
d di
stri
butio
n of
the
tele
vise
d in
form
atio
n ar
e_l
ot m
aint
aine
d at
thei
r hi
ghes
t lev
el, c
omm
unic
atio
nis
disr
upte
d an
d th
e va
lue
of te
levi
sion
is e
ither
less
ened
or in
fac
t des
troy
ed.
Use
of
the
appr
oach
es o
utlin
ed in
this
book
let
rega
rdle
ss o
f w
heth
er th
e te
levi
sion
sig
nal u
tiliz
ed is
from
open
-cir
cuit
boad
cast
s, c
lose
d-cl
i - u
it ca
ble
syst
ems,
or
2500
MH
z tr
ansm
issi
on s
yste
msw
ill a
ssur
eth
e sc
hool
adm
inis
trat
or a
nd m
edia
spe
cial
ist t
hat t
heir
sch
ools
' im
-m
edia
te a
nd f
utur
e ne
eds
for
tele
com
mun
icat
ions
will
bem
et. T
he p
rope
rly
desi
gned
Mas
ter
Ant
enna
Tel
evis
ion
syst
em c
an c
arry
a m
ultip
licity
of
tele
visi
onch
anne
ls, a
ndit
is c
once
ivab
le th
at s
uch
a sy
stem
may
eve
ntua
llym
ake
poss
ible
the
orga
niza
tion,
sto
rage
, and
ret
riev
al o
f a
com
-bi
natio
n of
inst
ruct
iona
l mat
eria
ls w
hich
can
be
inst
an-
tane
ous4
tran
smitt
ed to
the
clas
sroo
m.
Adm
itted
ly, T
hrou
gh C
able
to C
lass
room
..
.A
Gui
deto
IT
V D
istr
ibut
ion
Syst
ems
deal
s w
ith o
nly
one
of th
em
any
face
ts o
f in
stru
ctio
nal
tele
com
mun
icat
ions
whi
char
e in
nee
d of
dis
cuss
ion.
The
Dep
artm
ent o
f A
udio
visu
alIn
stru
ctio
n w
ill c
ontin
ue to
rep
ort o
n ne
w d
irec
tions
in th
efi
eld
of e
duca
tiona
l com
mun
icat
ions
and
tech
nolo
gy in
subs
eque
nt m
onog
raph
s. H
TI
WIR
ING
SC
HO
OL
S FO
RT
EL
EV
ISIO
N
DE
FIN
ING
TH
E P
RO
CE
SS
The
use
of
a co
ncep
t kno
wn
as M
aste
r A
nten
na T
ele-
visi
on (
MA
TV
) sy
stem
can
pro
vide
sch
ools
with
con
-si
sten
t qua
lity
rece
ptio
n in
eac
h cl
assr
oom
thro
ugho
utth
esc
hool
as
wel
l as
a de
gree
of
flex
ibili
ty in
tele
visi
on u
tiliz
a-tio
n no
t oth
erw
ise
avai
labl
e. M
AT
V s
yste
ms
can
be u
sed
for
tran
smis
sion
of
scho
ol-o
rigi
nate
d te
levi
sion
sig
nals
com
ing
from
vid
eo ta
pe r
ecor
ders
(V
TR
), m
icro
scop
e ca
m-
eras
, film
equ
ipm
ent,
etc.
, as
wel
l as
for
dist
ribu
tion
ofsi
gnal
s re
ceiv
ed a
t the
sch
ool f
rom
eith
er V
HF
or U
HF
nonc
omm
erci
al a
nd c
omm
erci
al te
levi
sion
bro
adca
st s
ta-
tions
, the
new
250
0 m
egah
ertz
(M
Hz)
Ins
truc
tiona
l Tel
e-vi
sion
Fix
ed S
ervi
ce (
ITFS
) st
atio
ns, c
lose
d-ci
rcui
t tel
e-vi
sion
(C
CT
V),
or
othe
r so
urce
s.Si
mpl
y st
ated
, a M
aste
r A
nten
na T
elev
iLio
n sy
stem
is a
web
of
cabl
e co
nnec
ted
to a
uni
t of
elec
tron
ic h
ard-
war
e w
hich
rec
eive
s th
ede
sire
d te
levi
sion
sig
nal a
t one
sing
le p
oint
via
an
ampl
ifyi
ty7
boos
ter,
or
head
-era
Thi
sam
plif
ier
help
s to
ret
ain
the
lam
e qu
ality
sig
nal t
hat w
astr
ansm
itted
fro
m th
e or
igin
atio
n so
urce
. The
tlia
grai
n on
the
follo
win
g pa
ge d
epic
ts h
ow th
e va
ryin
g al
tei.n
ativ
esfo
r te
levi
sion
sig
nals
can
be
dist
ribu
ted
by M
AT
V. A
wel
l-de
sign
ed, w
ell-
inst
alle
d M
AY
sys
tem
will
off
er m
any
bene
fits
to te
ache
rs u
sing
tele
visi
on in
the
scho
ol. N
oton
ly w
ill it
pro
vide
rea
dy a
cces
s to
all
tele
visi
on s
igna
lsin
you
r ar
ea, b
ut, m
ore
impo
rtan
t, th
e qu
ality
of r
ecep
tion
thro
ugho
ut th
e sc
hool
will
be
cons
iste
nt a
nd u
nifo
rm.
Thr
ough
the
use
of a
mpl
ifie
rs, s
igna
ls w
ill b
e of
like
stre
ngth
thro
ugho
ut th
e sc
hool
, whe
ther
the
tele
visi
onsi
gnal
bei
ng r
ecei
ved
is c
lose
by
or f
ar a
way
.T
oday
, the
re a
re m
any
type
s of
tele
visi
on tr
ans-
mis
sion
sys
tem
sRF
cabl
e, 2
500
MH
z, U
HF
tele
visi
on,
VH
F te
levi
sion
, etc
. How
ever
, at t
he p
oint
of
rece
ptio
n(i
n th
is c
ase
the
scho
ol),
mos
t sig
nals
are
con
vert
ed to
a V
HF
tele
visi
on f
requ
ency
whi
ch is
then
tran
smitt
edth
roug
hout
the
scho
ol b
y w
hate
ver
dist
ribu
tion
syst
emis
ava
ilabl
e. I
n ot
her
wor
ds, t
he V
HF
sign
al is
use
d m
ore
or le
ss a
s a
com
mon
den
omin
ator
for
all d
istr
ibut
ion
sys-
tem
s. I
t is
at th
is p
oint
of
conv
ersi
on th
at a
MA
TV
sys
tem
begi
ns to
off
er m
axim
um b
enef
its.
For
exam
ple,
if a
cces
s to
the
inco
min
g ne
twor
kof
cabl
e is
pro
vide
d at
a s
ingl
e po
intth
e M
AT
V s
yste
mte
levi
sion
sig
nals
inse
rted
at t
hat p
oint
will
be
carr
ied
thro
ugho
ut th
e ne
twor
k of
you
r ow
n in
terc
onne
ctio
n sp
e-ci
fica
tion,
and
sig
nals
out
side
the
cabl
e w
ill n
ot in
terf
ere
with
you
r ow
n ca
ble
sign
als.
Thu
s, a
lthou
gh th
ere
mig
htbe
a c
hann
el 3
com
mer
cial
sta
tion
in y
our
area
, a s
ingl
esc
hool
can
use
a c
hann
el 3
sig
nal f
or lo
cal i
nstr
uctio
n by
keep
ing
it in
its
own
little
clo
sed-
circ
uit w
orld
on
the
coax
ial c
able
. Her
e, th
en, i
s on
e fa
ctor
in f
avor
of
aM
AT
V s
yste
m.
Ano
ther
ben
efit
of a
MA
TV
sys
tem
is in
the
area
of
prob
lem
s pr
esen
ted
by c
able
con
nect
ions
. To
mai
ntai
n th
ech
arac
teri
stic
s of
coa
xial
cab
le, s
peci
al c
onne
ctio
n de
vice
sar
e us
ed w
hene
ver
the
cabl
esp
lits
(is
sepa
rate
d an
d ro
uted
to o
ther
des
igna
ted
area
s) o
r w
here
ver
a re
ceiv
eris
at-
tach
ed. T
hese
spe
cial
con
nect
ion
devi
ces,
cal
led
split
ters
and
taps
, con
tain
ele
ctro
nic
part
s ne
cess
ary
to m
aint
ain
the
elec
tric
al c
hara
cter
istic
s of
the
cabl
e ju
st a
s if
it w
ere
not d
ivid
ed. H
owev
er, t
hey
pres
ent t
he m
ain
prob
lem
inth
e de
sign
of
any
syst
emlo
ss o
f si
gnal
. Cab
le, s
plitt
ers,
and
taps
all c
ontr
ibut
e to
a r
educ
tion
in th
e am
ount
of
sign
al a
vaila
ble
at a
ny p
oint
. The
am
plif
ier
prov
ided
, the
re-
fore
, mus
t be
larg
e en
ough
to o
verc
ome
all t
he lo
sses
betw
een
it an
d th
e fa
rthe
st o
utle
t. H
ere
agai
n is
ano
ther
inst
ance
whe
re M
AT
V c
an e
nsur
e th
at m
axim
umbe
nefi
tsar
e fe
lt at
eac
h vi
ewin
g st
atio
n.A
MA
TV
sys
tem
can
als
o be
an
asse
t in
prov
idin
g th
ene
cess
ary
mod
icum
of
flex
ibili
tyth
at is
incr
easi
ngly
de-
sire
d in
tele
vise
d in
stru
ctio
n. I
t can
be
so d
esig
ned
as to
prov
ide
man
y ch
anne
ls f
or tr
ansm
issi
on o
f in
form
atio
nat
any
sin
gle
time.
With
thes
e fa
ctor
s in
min
d, th
e ne
xt lo
gica
l que
stio
nab
out a
MA
TV
sys
tem
con
cern
s co
sts.
Wha
t abo
ut c
osts
?
CC
TV
CA
BLE
CO
NV
ER
TE
RC
ON
VE
RT
ER
flmiT
HF
TE
LEV
ISIO
N '-
----
)S
IGN
ALS
HE
AD
-EN
D A
MP
LIF
IER
IS
PLI
TT
ER
r---
-I-1
ES
TIM
AT
ING
TH
E S
YS
TE
M C
OS
TS
RO
OM
II
I
OU
TLE
TS
The
mos
t exp
ensi
ve s
ingl
e pa
rt o
f th
e sy
stem
is th
e(T
AP
S)
I
II
head
-end
inst
alla
tion.
Thi
s in
clud
es th
e an
tenn
a, th
e am
-pl
ifie
r, a
ny U
HF
to V
HF
conv
ersi
on e
quip
men
t nec
essa
ry,
AC
pow
er w
irin
g, if
nec
essa
ry, a
nd a
ny o
ther
acc
esso
ries
II
need
ed to
fee
d th
e ca
ble
whi
ch s
erve
s th
e vi
ewin
g ar
eas.
The
cos
t of
the
head
-end
mus
t be
spre
ad o
ver
the
num
ber
II
Iof
out
lets
in th
e sy
stem
if o
ne is
to f
igur
e co
sts
on a
dol
lar-
per-
room
or
dolla
r-pe
r-ou
tlet b
asis
.O
bvio
usly
the
per-
outle
t cos
t will
be
high
er in
a s
mal
l sch
ool t
han
it w
ill b
eA
TE
LEV
ISIO
N D
IST
RIB
UT
ION
SY
ST
EM
in a
larg
e on
e.
4
A s
econ
d fa
ctor
aff
ectin
g co
st is
the
type
and
age
of
the
build
ing
in w
hich
the
syst
em w
ill b
e lo
cate
d. A
n ol
dbu
ildin
g w
ith h
igh
ceili
ngs,
no
tele
visi
on c
ondu
it, a
ndth
ick
mas
onry
wal
ls w
ill r
equi
re m
ore
man
hou
rs th
ana
new
bui
ldin
g w
ith a
wel
l-de
sign
ed c
ondu
it sy
stem
al-
read
y w
ithin
its
wal
ls. T
ype
of c
onst
ruct
ion
has
a de
fini
tebe
arin
g on
cos
t.A
thir
d fa
ctor
in m
akin
g a
good
est
imat
e is
the
stat
usof
the
labo
r m
arke
t in
the
area
. If
budg
etar
y m
atte
rs a
reth
e pr
ime
conc
ern,
the
scho
ol a
dmin
istr
ator
mig
ht f
ind
that
the
fina
ncia
l sav
ings
in d
oing
this
type
of
wor
k in
the
win
ter
mon
ths
will
out
wei
gh th
e nu
isan
ce o
f ha
ving
wor
k-er
s in
the
build
ing
whi
le s
choo
l is
in s
essi
on. I
f to
uris
m in
a pa
rtic
ular
are
a is
a m
ajor
sum
mer
mon
th in
dust
ry, l
abor
will
pro
babl
y be
har
d to
fin
d in
the
sum
mer
mon
ths.
Aco
ntra
ctor
may
hav
e to
pay
a p
rem
ium
for
sum
mer
labo
r(t
hus
rais
ing
the
cost
of
the
syst
em),
and
he
may
fin
d th
athe
is u
nabl
e to
com
plet
e th
e in
stal
latio
n by
fal
l. T
he li
st o
f"p
ros"
and
"co
ns"
to b
e co
nsid
ered
in th
e la
bor
area
isw
ide
and
vari
ed. C
onse
quen
tly, i
t is
advi
sabl
e to
dis
cuss
the
labo
r si
tuat
ion
with
pot
entia
l ins
talle
rs b
efor
e be
gin-
ning
to n
egot
iate
for
a s
yste
m.
In D
elaw
are,
whe
re 1
63 s
choo
ls w
ere
wir
ed d
urin
gth
e 19
65-6
6 fi
scal
yea
r, th
e pe
r-ou
tlet c
ost w
as a
bout
$40
.T
his
was
for
som
e 5,
200
outle
ts in
sch
ools
loca
ted
thro
ugh-
out t
he s
tate
.K
entu
cky
Aut
hori
ty f
or E
duca
tiona
l Tel
evis
ion
set f
ee }
hso
me
rule
s fo
r co
st e
stim
atin
g in
its
Rec
eptio
n an
d D
istr
i-bu
tion
Syst
ems
book
let.
It a
dvis
ed s
choo
ls a
s fo
llow
s:
5
Syst
em c
osts
may
be
estim
ated
usi
ng th
e fo
llow
ing
appr
oxim
ate
figu
res
whi
ch in
clud
e ca
ble,
labo
r, a
ndeq
uipm
ent.
The
fig
ures
are
bas
ed o
n th
e us
e of
exi
st-
ing
cond
uit o
r su
rfac
e m
ount
ing
of th
e ca
ble
whe
reno
con
duit
is a
vaila
ble.
Bui
ldin
g ce
ntra
l rec
eivi
ng e
quip
men
t whi
ch w
ill r
e-ce
ive
off-
the-
air
UH
F or
VH
F si
gnal
s an
d cl
osed
-c.:K
cuit
sign
als:
Eac
h U
HF
chan
nela
ppro
xim
atel
y $4
00 to
$60
0E
ach
VH
F ch
anne
lapp
roxi
mat
ely
$300
to $
500
Eac
h cl
osed
-cir
cuit
chan
nela
ppro
xim
atel
y $3
00E
ach
clas
sroo
m w
ith o
ne r
ecei
ver
outle
tapp
rox-
imat
ely
$40
Exa
mpl
e:Sc
hool
equ
ips
5 cl
assr
oom
s to
rec
eive
one
UPF
cha
nnel
.T
he c
ost w
ould
be:
For
the
cent
ral U
HF
rece
ivin
g eq
uipm
ent:
$400
to $
600
For
the
5 cl
assr
oom
s at
appr
ox. $
40 e
ach:
$200
Tot
al c
ost
$600
to $
800
The
rea
son
for
hesi
tanc
e on
the
part
of
som
e w
irin
gco
n-tr
acto
rs to
pro
vide
"to
p of
the
head
" es
timat
es f
or s
ys-
tem
s be
com
es o
bvio
us. T
he m
any
vari
able
s w
hich
aff
ect
the
over
all o
pera
tion
and
perf
orm
ance
of
the
syst
em a
lso
affe
ct th
e co
st o
f th
e sy
stem
. It i
s th
e in
stru
ctio
nal n
eed
and
the
inst
ruct
iona
l situ
atio
n w
hich
will
det
erm
ine
both
tech
nica
l cap
abili
ty a
nd u
ltim
ate
cost
. How
ever
, sup
plie
rsan
d te
chni
cian
s th
roug
hout
the
coun
try
will
agr
ee th
at th
eco
st o
f a
wel
l-de
sign
ed s
yste
m p
rovi
ding
hig
h-qu
ality
re-
cept
ion
over
a 1
0-ye
ar p
erio
d se
ldom
exc
eeds
the
cost
of
a m
edio
cre
or p
oor
syst
em, w
hich
will
hav
e a
shor
ter
use-
ful l
ife
and
grea
ter
mai
nten
ance
cos
ts p
robl
ems.
DE
TE
RM
ININ
G Y
OU
R T
EL
EV
ISIO
ND
IST
RIB
UT
ION
NE
ED
S
Bec
ause
the
scho
ol f
acul
ty a
nd th
est
uden
ts a
re th
e on
esth
e te
levi
sion
sys
tem
mus
t ser
ve, p
rope
rin
stal
latio
n is
esse
ntia
l if
the
syst
em is
to w
ork
effi
cien
tly w
ithou
t bei
nga
hind
ranc
e to
the
effo
rts
of th
e ed
ucat
iona
l com
mun
ity.
Firs
t, th
e sc
hool
fac
ulty
mus
tde
term
ine
the
area
sw
hich
are
to b
e se
rved
by
the
syst
em.
Usu
ally
all
clas
s-ro
oms
are
serv
edw
ith a
t lea
st o
ne, b
ut p
refe
rabl
y tw
o,te
levi
sion
out
lets
. Are
as w
here
larg
e-gr
oup
inst
ruct
ion
isca
rrie
d on
usu
ally
are
equ
ippe
d w
ith m
any
outle
ts to
allo
wfo
r us
e of
a n
umbe
r of
tele
visi
onre
ceiv
ers.
Lik
ewis
e, f
ac-
ulty
are
as a
nd o
ffic
es s
houl
d be
equ
ippe
dif
teac
hers
are
to p
revi
ew m
ater
ial a
vaila
ble
via
the
tele
visi
on s
yste
m.
The
dec
isio
n to
equ
ip s
hops
suc
h as
thos
e us
ed f
or te
ach-
ing
auto
mec
hani
cs o
rw
oodw
orki
ng s
houl
d be
bas
ed o
nth
e cu
rric
ulum
nee
ds o
f st
uden
ts in
thes
e su
bjec
ts. I
not
her
wor
ds, i
nste
ad o
f ha
ving
stud
ents
in th
ese
clas
ses
view
ing
tele
visi
on in
ano
ther
clas
sroo
m, a
way
fro
m th
esh
op o
r la
bora
tory
are
as, i
t may
be
bette
r to
equ
ip s
uch
area
s w
ith th
eir
own
tele
visi
on o
utle
ts. T
his
wou
ld n
oton
ly b
e co
nduc
ive
to b
ette
rle
arni
ng, b
ut a
lso
elim
inat
eth
e in
conv
enie
nce
and
loss
of
time
in tr
ansp
ortin
g st
u-de
nts
to a
nd f
rom
ano
ther
clas
sroo
m.
In g
ener
al, a
goo
d ru
le o
fth
umb
is to
pro
vide
a c
lass
-ro
om r
ecei
ver
to s
erve
anu
mbe
r of
stu
dent
s no
t exc
eedi
ngth
e pi
ctur
e tu
be d
iago
nal m
easu
rem
ent
in in
ches
. Thu
s, a
23-i
nch
rece
iver
wou
ld s
erve
23
stud
ents
. Vie
win
g of
asi
ngle
rec
eive
r by
mor
e th
an 3
0 st
uden
tsis
def
inite
ly n
otre
com
men
ded.
In
fact
, for
eve
ry s
tude
ntad
ded
over
and
abov
e th
e af
orem
entio
ned
rule
-of-
thum
b fi
gure
, the
ef-
fect
iven
ess
of te
levi
sion
on
the
lear
ning
pro
cess
mig
ht b
epl
aced
in s
erio
us je
opar
dy. C
row
ded
view
ing
area
s of
ten
gene
rate
an
unco
mfo
rtab
leen
viro
nmen
t whi
ch m
ay n
otbe
con
duci
ve to
lear
ning
.6
Onc
e th
e lo
catio
ns to
be
serv
ed a
rede
term
ined
, spe
-ci
fica
lly lo
cate
the
outle
ts in
eac
h ar
ea.
Prov
idin
g pr
ecis
ein
form
atio
n ab
out e
very
roo
m w
ill e
nsur
ew
ell-
engi
neer
edpr
opos
als
from
you
r po
tent
ial s
uppl
iers
, as
they
can
mak
ede
fini
te d
eter
min
atio
ns o
f ca
ble
requ
irem
ents
and
can
mor
epr
ecis
ely
plan
and
est
imat
e th
e pe
rfor
man
ceof
the
syst
em.
In m
ost c
lass
room
s, th
e be
stlo
catio
n fo
r a
tele
visi
onre
ceiv
er o
utle
t is
in th
e fr
ont o
f th
ecl
assr
oom
, adj
acen
tto
the
win
dow
wal
l. Su
ch a
loca
tion
min
imiz
es r
efle
ctio
nof
the
light
fro
m o
utdo
ors
on th
e fa
ceof
the
pict
ure
tube
.Y
ou m
ay w
ish
to lo
cate
out
lets
at
diff
eren
t loc
atio
ns in
part
icul
ar r
oom
s be
caus
e of
a n
umbe
r of
fact
ors,
suc
h as
the
follo
win
g:
1. T
he lo
catio
n of
ava
ilabl
e A
Cou
tlets
2. T
he la
yout
of
cert
ain
fixe
dfu
rnitu
re in
the
clas
s-ro
om3.
Whe
ther
the
tele
visi
on s
et is
perm
anen
tly a
ssig
ned
to th
e ro
om o
r is
mov
edfr
eque
ntly
4. L
ack
of a
win
dow
wal
l5.
Ful
l con
trol
of
both
art
ific
ial
and
natu
ral i
llum
ina-
tion
in th
e cl
assr
oom
6. T
he to
tal n
umbe
r of
tele
visi
onou
tlets
in th
e ro
om.
Onc
e th
e ou
tlet l
ocat
ions
thro
ugho
ut th
esc
hool
are
det
er-
min
ed, l
ocat
e po
tent
ial a
reas
whe
re h
ead-
indi
stri
butio
neq
uipm
ent m
ight
be
inst
alle
d (c
lose
ts, u
tility
are
as,
attic
s,bo
iler
room
s, o
r fi
nish
ed a
reas
suc
h as
the
scho
ol o
ffic
eor
eve
n cl
assr
oom
s sh
ould
be c
onsi
dere
d). K
eep
in m
ind
that
suc
h eq
uipm
ent s
houl
d be
loca
ted
asce
ntra
lly w
ithin
the
scho
ol a
s po
ssib
le a
nd s
houl
d al
sobe
eas
ily a
cces
sibl
efo
r m
aint
enan
ce. A
ll pe
rtin
ent l
ocat
ions
shou
ld b
e de
taile
din
wri
ting
and
clea
rly
mar
ked
on a
sim
ple
diag
ram
of
the
scho
ol.
--
-
I I
A p
rope
rly
inst
alle
d he
ad-e
nd a
mpl
ifie
r ha
s w
ell-
laid
-ou
t cab
les,
pro
perl
y la
bele
d, a
nd h
as b
een
chec
ked
for
perf
orm
ance
with
pro
per
test
inst
rum
ents
. Thi
sin
stal
latio
n is
in a
cab
inet
that
ope
ns w
ide
for
easy
mai
nten
ance
.
7
4,r
0,41
./kIr
e A
:Fa
ilure
to s
peci
fy lo
catio
n of
hea
d-en
d eq
uipm
ent m
ayre
sult
in th
e co
ntra
ctor
loca
ting
it w
here
it is
dif
ficu
ltan
d in
deed
uns
afe
to s
ervi
ce. I
n th
is ty
pe o
f in
stal
la-
tion,
the
head
-end
am
plif
ier
is in
the
mai
l box
and
leav
es e
quip
men
t ope
n to
van
dals
and
the
elem
ents
.
a-
Hav
ing
dete
rmin
ed th
e vi
ewin
g an
d eq
uipm
ent
loca
-tio
ns, r
evie
w a
nd s
peci
fy a
llow
able
cons
truc
tion
prac
-tic
es. I
f th
is is
left
to th
e in
stal
ler's
dis
cret
ion,
ther
e is
no
end
to th
e po
ssib
le w
ays
a ca
ble
mig
htbe
run
. The
re m
aybe
som
e lim
itatio
ns w
hich
sch
ool a
dmin
istr
ator
s,ar
chi-
tect
s, o
r sc
hool
boa
rds
wis
h to
plac
e on
the
cont
ract
or.
In e
xist
ing
build
ings
, the
con
trac
tor
may
have
topl
ace
all t
runk
and
fee
der
wir
e on
the
outs
ide
of th
e bu
ild-
ing
and
allo
w th
e dr
ops
to e
ach
room
to c
ome
thro
ugh
aw
indo
w f
ram
e. S
uch
a jo
b ca
n be
nea
tly d
one.
The
re a
re,
how
ever
, ins
tanc
es w
here
the
feed
er c
able
has
been
run
arou
nd th
e ci
rcum
fere
nce
of th
e bu
ildin
gbe
twee
n th
e fi
rst
and
seco
nd f
loor
, with
dro
ps r
unni
ng u
pan
d do
wn
toro
oms
on b
oth
floo
rs.A
s bl
ack
cabl
e w
as u
sed,
the
appe
ar-
ance
was
that
of
asc
hool
wra
pped
like
a p
acka
ge a
bout
to b
e m
aile
d! I
n co
ntra
st, i
n m
any
scho
ols
this
type
of
wir
ing
is d
one
in a
man
ner
whi
chbl
ends
the
wir
ing
unob
trus
ivel
y in
to th
e ou
tsid
e of
the
build
ing.
Man
y co
ntra
ctor
s w
ho d
o ou
tsid
e w
irin
gpl
ace
cabl
eson
the
scho
ol r
oof,
whi
ch th
en d
rop
off
the
roof
and
run
dow
n th
e si
de o
f th
e sc
hool
into
cla
ssro
oms.
In
som
e ar
eas,
such
pra
ctic
e af
fect
s th
e co
vera
ge o
fro
ofin
g co
ntra
cts.
It m
ay a
lso
be a
vio
latio
n of
som
eci
ty o
r co
unty
cod
e,be
it a
bui
ldin
g, s
afet
y, f
ire,
or
insu
ranc
eco
de. T
he a
dmin
-is
trat
or s
houl
d ch
eck
such
fac
tors
befo
re a
llow
ing
cabl
eto
be
inst
alle
d w
hich
will
mak
e co
ntac
tw
ith th
e ro
e:.
8
Out
side
wir
ing
jobs
can
be
done
nea
tly. I
nth
is in
-st
ance
, a g
rom
met
is u
sed
to p
rote
ctth
e ca
ble
whe
reit
pass
es th
roug
h an
alu
min
umw
indo
w f
ram
e. T
heco
ntra
ctor
left
a d
rip
loop
to p
reve
ntw
ater
fro
m e
n-te
ring
the
bu :d
ing
alon
g th
eca
ble
and
the
cabl
e is
prop
erly
sec
ured
in th
e br
ick,
not
the
mor
tar.
it.,
Out
side
wir
ing
can
be d
one
neat
lyw
ithou
t mar
ring
the
appe
aran
ce o
f th
e bu
ildin
g. I
n th
eex
ampl
e of
wha
tca
n ha
ppen
whe
nad
equa
te s
uper
visi
on is
not
exe
r-ci
sed,
shi
ngle
nai
ls w
ere
used
rat
her
than
cla
mps
and
the
lack
of
a dr
ip lo
op n
eces
sita
ted
late
r "g
unki
ng"
of th
e w
indo
w w
ith ta
r.
DE
SIG
NIN
G T
HE
SC
HO
OL
PL
AN
TFO
R M
AT
V
Wir
ing
Part
ially
Equ
ippe
d Sc
hool
sSo
far
, we
have
dis
cuss
ed w
irin
g of
exi
stin
g sc
hool
s ha
ving
no te
levi
sion
dis
trib
utio
n sy
stem
. Som
esc
hool
s pa
rtia
llyw
ired
in y
ears
pas
t oft
en n
eed
to u
pdat
e an
d ex
pand
the
wir
ing
to s
erve
add
ition
,cl
assr
oom
s. U
se o
f th
e or
igin
alsy
stem
has
pro
babl
y ta
ught
the
scho
ol f
acul
ty m
uch
abou
tou
tlet p
lace
men
t and
sys
tem
per
form
ance
, and
this
exp
eri-
ence
sho
uld
cert
ainl
y be
inco
rpor
ated
into
the
expa
nded
syst
em.
If th
e sy
stem
is f
our
or f
ive
year
s ol
d, in
vest
igat
e th
epo
ssib
ility
of
tota
l rep
lace
men
t. If
the
equi
pmen
t is
fair
lyne
w a
nd th
e am
plif
ier
and
taps
are
of m
oder
n de
sign
,th
ese
item
s m
ay w
ell b
e in
corp
orat
ed in
a r
edes
igne
dsy
stem
. Pro
vide
pot
entia
l con
trac
tors
with
3 m
uch
per-
tinen
t dat
a on
the
exis
ting
equi
pmen
t as
poss
ible
. The
type
and
ser
ial n
umbe
r of
the
ampl
ifie
r, a
nd d
ata
on ta
ps,
split
ters
, and
type
of
cabl
e us
ed (
as p
rint
ed o
n m
ost c
able
)w
ill a
ll be
hel
pful
to th
e co
ntra
ctor
. Not
e ex
istin
g ou
tlets
as w
ell a
s eq
uipm
ent l
ocat
ion
and
cabl
e ro
utin
gof
exi
stin
gsy
stem
s on
a s
impl
e fl
oor
plan
or
blue
prin
t if
poss
ible
.
Wir
ing
New
ly C
onst
ruct
ed B
uild
ings
Mos
t sch
ools
bei
ng d
esig
ned
toda
y m
ake
prov
isio
n fo
rth
ein
stal
latio
n of
con
duits
for
tele
visi
on in
eve
ry c
lass
room
.H
owev
er, i
t may
be
impo
ssib
le to
use
exi
stin
g co
ndui
tsan
d st
ill o
btai
n a
qual
ity te
levi
sion
sys
tem
with
out m
ak-
ing
a fe
w te
chni
cal c
ompr
omis
es. T
he r
easo
n is
sim
ple
enou
gh: I
n m
any
inst
ance
s, w
hen
the
scho
ol is
des
igne
d,th
e ar
chite
ct te
nds
to tr
eat t
elev
isio
n in
the
sam
e m
anne
ras
he
trea
ts th
e sc
hool
soun
d or
clo
ck s
yste
m. T
his
shou
ldno
t be
the
case
. It i
s a
bad
prac
tice
tore
late
all
tele
visi
on
9
The
abo
ve d
iagr
ams
disp
lay
two
com
mon
cab
le d
istr
i-bu
tion
patte
rns
freq
uent
ly u
sed
in n
ewly
con
stru
cted
scho
ol b
uild
ings
.
cond
uits
to a
hea
d-en
d lo
catio
nin
the
offi
ce ju
st a
s is
the
case
with
apu
blic
add
ress
or
cloc
k sy
stem
.T
he w
irin
gsp
ecif
icat
ions
for
tele
visi
on a
redi
ffer
ent,
and
they
mus
tbe
pro
perl
y de
fine
d.O
nce
the
new
bui
ldin
gsc
hem
atic
is c
ompl
ete,
the
scho
ol p
erso
nnel
sho
uld
proc
eed
as th
ey w
ould
in a
nex
istin
g sc
hool
and
spe
cifi
cally
loca
te th
e te
levi
sion
out
lets
acco
rdin
g to
inst
ruct
iona
l nee
dan
d si
tuat
ion.
Gen
eral
lysp
eaki
ng, t
he r
ules
for
out
let
and
equi
pmen
t loc
atio
n ar
eth
e sa
me
here
as
thos
epr
evio
usly
men
tione
d fo
r ex
istin
gbu
ildin
gs.
The
sch
emat
ic f
loor
pla
nsh
owin
g ou
tlets
and
sug
-ge
sted
hea
d-en
d eq
uipm
ent
loca
tions
sho
uld
be r
etur
ned
to th
e ar
chite
ct. T
hear
chite
ct s
houl
d ta
ke a
dvan
tage
ofth
e se
rvic
es o
f a
tele
visi
onco
nsul
tant
, a M
AT
V s
yste
mco
ntra
ctor
, or
a M
AT
V s
yste
mm
anuf
actu
rer
to p
rovi
dela
yout
of
cond
uit n
eces
sary
for
the
inst
alla
tion
of a
nop
timum
tele
visi
on s
yste
m.
Thi
s sh
ould
be
done
whe
ther
the
actu
al te
levi
sion
sys
tem
will
be
inst
alle
d no
w o
r at
som
e la
ter
date
.
UT
ILIZ
ING
IN
-SC
HO
OL
CL
OSE
D-
CIR
CU
IT T
EL
EV
ISIO
NA
ND
MA
TV
The
re a
re m
any
scho
ols
that
mak
e us
e no
w, o
r w
ill in
the
futu
re, o
f cl
osed
-cir
cuit
tele
visi
onor
igin
ated
will
tin th
esc
hool
. A p
rope
rly
desi
gned
MA
TV
syst
em c
an b
e us
edfo
r di
stri
butio
n of
thes
e si
gnal
s.A
ll m
anuf
actu
rers
can
prov
ide
this
cap
abili
ty, a
lthou
gh in
diff
eren
t way
s.
Mor
e ex
tens
ive
syst
ems
prov
ide
fitti
ngs
in e
ach
room
that
allo
w in
sert
ion
of a
tele
visi
on s
igna
l int
o th
e ex
istin
gca
ble.
Thr
ough
the
use
ofsp
ecia
l dev
ices
kno
wn
as d
irec
-tio
nal c
oupl
ers,
this
sig
nal i
sch
anne
lvd
back
to th
e he
ad-
end
whe
re it
is c
onve
rted
to a
VH
F ta
levi
sion
sig
nal
and
then
rou
ted
thro
ugh
the
head
-end
am
plif
ier.
Fro
m th
atpo
int,
it is
dis
trib
uted
toal
l roo
ms,
as
is a
VH
Fsi
gnal
.B
uild
ing
expa
nsio
n sh
ould
be
done
exc
lusi
ve o
f th
eM
AT
V s
yste
m. O
nce
the
addi
tiona
l bui
ldin
g co
nstr
uctio
nis
fin
ishe
d, s
peci
al c
able
s to
car
rylo
cally
ori
gina
ted
tele
-vi
sion
sig
nals
fro
m k
ey a
reas
of th
e sc
hool
to th
e he
ad-
end
unit
will
usu
ally
be
less
expe
nsiv
e to
inst
all a
nd w
illpr
obab
ly b
e m
ore
flex
ible
and
easi
er f
or s
choo
l per
sonn
elto
use
and
und
erst
and.
A c
onsu
ltant
or
serv
ice
orga
niza
tion
can
advi
se o
nth
e be
st w
ay to
do
the
job,
depe
ndin
g on
the
amou
nt o
flo
cal o
rigi
natio
n to
be
done
,an
d es
peci
ally
on
the
num
ber
of r
oom
s th
at w
ould
nor
mal
lyvi
ew s
uch
sign
als.
IMPL
EM
EN
TIN
G A
ND
OB
TA
ININ
G A
MA
TV
SY
STE
MO
nce
spec
ific
nee
ds h
ave
been
wel
l def
ined
, it i
s tim
e to
begi
n to
pro
cure
a s
yste
m. I
n m
ost
scho
ols,
suc
h sy
stem
sar
e pu
rcha
sed
afte
r th
e sc
hool
adm
inis
trat
ion
has
rece
ived
com
petit
ive
prop
osal
s fr
om a
num
ber
of s
yste
m in
stal
lers
.T
o ob
tain
com
plet
e, f
air,
mea
ning
ful p
ropo
sals
, a w
ell-
wri
tten
set o
f de
taile
dsp
ecif
icat
ions
is n
eces
sary
.Pa
rt I
I of
this
boo
klet
con
tain
s a
sugg
este
d se
t of
spec
-if
icat
ions
to s
erve
as
a sy
stem
guid
elin
e w
hich
can
be
met
10
com
petit
ivel
y by
man
y su
pplie
rs. A
ny m
anuf
actu
rer
ofM
AT
V e
quip
men
t can
als
o pr
ovid
e sp
ecif
icat
ions
,al
-th
ough
, in
this
wri
ter's
opi
nion
, the
use
of
spec
ific
atio
nsw
ritte
n by
a m
anuf
actu
rer
or h
is r
epre
sent
ativ
e m
ay p
lace
the
buye
r in
a p
ositi
on o
f co
mpr
omis
e.O
nce
the
syst
em s
peci
fica
tions
are
com
plet
e, d
esir
edpe
rfor
man
ce a
nd p
aram
eter
s se
t for
th, a
nd a
ll de
tails
of
outle
t and
equ
ipm
ent l
ocat
ion
spel
led
out,
this
info
rma-
tion
shou
ld b
e fo
rwar
ded
to p
oten
tial s
uppl
iers
. The
sesu
pplie
rs s
houl
d be
exp
erie
nced
MA
TV
sys
tem
sal
es a
ndse
rvic
e co
mpa
nies
, sel
ling
know
n eq
uipm
ent p
rove
n in
scho
ol s
yste
ms,
and
bei
ng a
ble
to d
ispl
ay a
rec
ord
ofth
eir
serv
ice.
If th
e sy
stem
is to
be
part
of
a ne
w b
uild
ing,
bui
ldin
gad
ditio
n, o
r re
mod
elin
g pr
ojec
t, be
sur
e th
at y
our
arch
itect
subm
its th
is p
art o
f th
e pr
ojec
t to
a su
bcon
trac
tor
spec
ial-
izin
g in
tele
visi
on. M
any
syst
ems
prov
ided
as
a pa
rtof
the
elec
tric
al s
ubco
ntra
cts
in n
ew b
uild
ings
are
not
goo
dsy
stem
s in
the
fina
l ana
lysi
s. A
lthou
gh e
lect
rici
ans
mig
htpu
ll al
l tel
evis
ion
cabl
e in
to th
e bu
ildin
g co
ndui
t, be
sur
eth
at th
e sy
stem
des
ign,
hoo
kup,
bal
ance
, and
che
ckou
tar
e do
ne b
y a
tele
visi
on s
yste
ms
orga
niza
tion.
The
val
ueof
this
add
ition
al e
ffor
t sho
uld
not b
e un
dere
stim
ated
.A
llow
ple
nty
of ti
me
for
the
retu
rn o
f pr
opos
als.
Alth
ough
man
y su
pplie
rs d
o al
low
bid
pro
posa
ls to
lie
arou
nd u
ntil
the
last
min
ute,
exp
erie
nced
, rel
iabl
e, in
ter-
este
d fi
rms
will
mak
e us
e of
all
avai
labl
e tim
e to
asc
erta
inth
e so
undn
ess
of th
e sy
stem
they
pro
pose
.A
fter
pro
posa
ls h
ave
been
ret
urne
d an
d ac
cept
ed, b
esu
re to
look
bey
ond
the
page
indi
cati:
Ig th
e pr
ice.
If
pos-
11
sibl
e, h
ave
a co
nsul
tant
rev
iew
the
prop
osal
s to
ass
ure
you
that
wha
t is
prop
osed
isin
deed
wha
t is
aske
d fo
r in
the
spec
ific
atio
ns. T
his
sam
e pe
rson
late
r sh
ould
also
chec
k yo
ur c
ompl
eted
sys
tem
for
you
, to
ensu
re th
at it
was
com
plet
ed a
s sp
ecif
ied.
Bid
eva
luat
ion
and
subs
eque
nt s
yste
m c
heck
out a
reim
port
ant p
arts
of
buyi
ng s
uch
a sy
stem
. Ass
uran
ceth
atpr
opos
als
will
be
fair
ly e
valu
ated
and
sys
tem
sch
ecke
din
acc
orda
nce
with
the
spec
ific
atio
ns w
ill m
otiv
ate
relia
ble
bidd
ers
to p
rovi
de f
ine
syst
ems
at a
rea
sona
ble
cost
. ET
Vst
atio
n en
gine
ers
mig
ht p
rovi
de s
uch
a se
rvic
e in
you
r ar
ea.
Som
e st
ate
educ
atio
n de
part
men
ts n
ow h
ave
tech
nici
ans
on th
eir
staf
f w
ho c
an a
ssis
tth
e lo
cal e
duca
tor.
The
hir
ing
of a
con
sulta
nt is
an
inve
stm
ent t
owar
d a
mor
e ef
fect
;ve
syst
em, n
eedi
ng le
ss m
aint
enan
ce o
ver
man
y ye
ars.
"Les
-
sons
lost
bec
ause
of
anin
oper
ativ
e sy
stem
or
idea
s lo
stbe
caus
e of
a m
argi
nal s
yste
m a
re d
iffi
cult
to p
rice
. In
area
s w
here
ET
V is
wid
ely
used
, tea
cher
s ex
pres
sing
diss
atis
fact
ion
in E
TV
are
man
y tim
es e
xpre
ssin
g di
ssat
is-
fact
ion
in th
e te
chni
cal r
elia
bilit
y or
pic
ture
qua
lity
ofth
esy
stem
in th
eir
scho
ol.
Allo
w p
lent
y of
tim
e to
do
the
job.
If
mon
etar
y al
loca
-tio
ns f
or te
levi
sion
bec
ome
avai
labl
e in
Jul
y,be
car
eful
abou
t try
ing
to c
ompl
ete
the
syst
em b
y th
e st
art
of th
esc
hool
yea
r in
Sep
tem
ber.
Det
ails
ove
rloo
ked
and
com
-pr
omis
es m
ade
to b
eat t
he d
eadl
ine
will
onl
y ca
use
futu
repr
oble
ms.
In
acqu
irin
g an
y el
ectr
onic
inst
alla
tion
of a
nysi
ze, i
t wou
ld b
e w
ell t
o al
loca
te a
min
imum
of 9
0 da
ysto
the
proj
ect.
New
tran
sist
oriz
ed e
quip
men
t pro
vide
s th
e us
erw
ithad
ded
relia
bilit
y, lo
wer
pow
er r
equi
rem
ents
, and
coo
ler
oper
atio
n. T
his
broa
dban
d am
plif
ier
is a
n ex
ampl
eof
cons
tant
equ
ipm
ent d
evel
opm
ent i
n th
e M
AT
Vfi
eld.
12
LO
OK
ING
AT
FU
TU
RE
DE
VE
LO
PME
NT
SIN
MA
TV
As
in a
ny te
chno
logi
cal f
ield
toda
y, th
eM
AT
V s
yste
mm
anuf
actu
rers
are
con
stan
tly w
orki
ng o
n im
prov
emen
tsto
pro
vide
bet
ter
serv
ice
to th
e vi
ewer
.U
ntil
now
, the
high
cab
le lo
sses
of
UH
F fr
eque
ncie
s ha
vepr
even
ted
the
dire
ct d
istr
ibut
ion
of U
HF
sign
als
with
out f
irst
conv
ert!
ngth
em to
VH
F si
gnal
s. N
ew lo
w-l
oss
cabl
e ha
sre
cent
ly b
een
deve
lope
d so
that
UH
F si
gnal
s ca
n be
dis
trib
uted
thro
ugh-
out a
sch
ool w
ithou
t con
vers
ion.
In
light
of
this
dev
elop
-m
ent,
man
ufac
ture
rs a
re n
ow e
xper
imen
ting
with
am
pli-
fier
s fo
r us
e in
UH
F si
gnal
dis
trib
utio
n. T
his
brea
kthr
ough
may
wel
l pro
vide
the
forw
ard-
look
ing
scho
ol a
dmin
istr
ator
with
man
y m
ore
tele
visi
on c
hann
els
to m
eet h
issc
hool
'sin
stru
ctio
nal o
bjec
tives
.T
rans
isto
rize
d or
"so
lid s
tate
" eq
uipm
ent p
rovi
des
som
e de
fini
te a
dvan
tage
in s
ize
asw
ell a
s re
liabi
lity
and
mai
nten
ance
whe
n us
ed in
sys
tem
s su
ch a
s M
AT
V.
The
tren
d to
day
is to
war
d re
plac
ing
tube
-typ
e eq
uipm
ent
with
new
er tr
ansi
stor
ized
mod
els.
As
the
scho
ol e
volv
es, s
o to
o sh
ould
the
tele
visi
onsy
stem
with
in th
e sc
hool
str
uctu
re.
Edu
cato
rs c
once
rned
with
the
inst
alla
tion
of te
levi
sion
in s
choo
l bui
ldin
gssh
ould
rem
ain
awar
e of
new
tren
ds in
this
are
a. N
o sy
stem
shou
ldbe
a c
arbo
n co
py o
f an
othe
r if
impr
oved
equi
pmen
t is
avai
labl
e. O
n th
e ot
her
hand
, no
syst
em s
houl
dbe
pur
-ch
ased
whi
ch is
not
of
prov
en r
elia
bilit
y. A
bove
all,
itsh
ould
be
emph
asiz
ed th
at th
e in
stru
ctio
nal
need
and
the
inst
ruct
iona
l situ
atio
n sh
ould
det
erm
ine
the
oper
atio
nal
natu
re o
f yo
ur te
levi
sion
sys
tem
.
APP
EN
DIX
:
TE
LE
VIS
ION
DIS
TR
IBU
TIO
NSY
STE
M G
UID
EL
INE
S
GU
IDE
LIN
ES
The
sys
tem
spe
cifi
catio
ns w
hich
fol
low
hav
e ev
olve
d ov
ertw
o ye
ars'
exp
erie
nce
in th
e w
irin
g of
nea
rly
200
scho
ols.
Supp
lem
ente
d to
mee
t the
nee
ds o
f a
spec
ific
educ
atio
nal
situ
atio
n, th
ese
basi
c pe
rfor
man
ce s
peci
fica
tions
can
appl
yto
alm
ost a
ny M
AT
V s
yste
m. T
he id
eas
gobe
yond
a r
ep-
rese
ntat
ion
of e
xper
ienc
e in
that
they
hav
e be
en r
evie
wed
by m
anuf
actu
rers
' rep
rese
ntat
ives
, arc
hite
cts,
eng
inee
rs,
and
tele
visi
on c
onsu
ltant
s.T
hese
are
per
form
ance
spe
cifi
catio
ns. T
hey
set f
orth
the
way
in w
hich
the
fina
l sys
tem
is to
per
form
and
the
man
ner
in w
hich
it is
to b
ein
stal
led.
Mos
t man
ufac
ture
rsof
a li
ne o
f M
aste
r A
nten
na T
elev
isio
n eq
uipm
ent
suita
ble
to s
erve
man
y lo
catio
ns c
an p
rovi
de a
sys
tem
mee
ting
thes
e sp
ecif
icat
ions
. The
sys
tem
as
spec
ifie
d w
ill d
istr
ibut
ean
y te
levi
sion
sig
nal i
n th
e V
HF
tele
visi
on b
and
whe
ther
13
it be
a c
onve
rted
250
0 M
Hz
sign
al, a
con
vert
ed U
HF
sign
al,
or a
sta
ndar
d V
HF
sign
al o
ff-t
he-a
ir o
r fr
om a
clo
sed-
circ
uit
cabl
e. Som
e ad
min
istr
ator
s m
ay n
ot li
ke th
is a
ppro
ach
toys
tem
acq
uisi
tion.
It r
equi
res
that
they
take
an
activ
e,re
spon
sibl
e, ti
me-
cons
umin
g pa
rt in
obt
aini
ng th
e sy
stem
.H
owev
er, i
f th
e ad
min
istr
ator
exe
rcis
es h
is r
espo
nsib
ility
,1)
rovi
des
the
addi
tiona
l nec
essa
ry in
form
atio
n re
gard
ing
his
scho
ol, a
nd a
scer
tain
s th
e ne
cess
ary
follo
w-u
p su
per-
visi
on a
s th
e sy
stem
is in
stal
led,
he
will
be
assu
red
of a
nex
celle
nt te
levi
sion
sys
tem
.It
sho
uld
be r
emem
bere
d th
at th
ere
is n
o ty
pica
ldi
s-tr
ibut
ion
syst
em. A
s yo
u re
ad th
ese
spec
ific
atio
ns, y
ou m
ayw
ell f
ind
that
you
will
hav
e to
cha
nge
som
e of
the
pro-
visi
ons.
Hop
eful
ly, y
ou w
ill b
ecom
e aw
are
of w
ays
inw
hich
you
can
adv
ise
your
inst
alle
r of
you
r sp
ecia
l nee
dsan
d yo
ur in
stru
ctio
nal s
ituat
ion
whi
ch w
ill e
nabl
ehi
m to
prov
ide
a to
p-no
tch
dist
ribu
tion
syst
em. R
emem
ber,
thes
esp
ecif
icat
ions
are
onl
y pr
ovid
ed a
s gu
idel
ines
.
INT
RO
DU
CT
ION
0.0
Iu s
impl
e te
rms,
this
sec
tion
sets
for
thth
e de
sire
d pr
oduc
t or
serv
ice
the
buye
r w
ishe
s to
buy
. Gro
und
rule
s fo
r pu
rcha
sing
,su
ch a
s an
y re
gula
tions
gov
erni
ng p
urch
ases
by a
sch
ool s
ys-
tem
, sho
uld
be n
oted
her
e. I
mpo
rtan
the
re, t
oo, i
s in
form
atio
nab
out t
he in
divi
dual
(s)
in th
e sc
hool
sys
tem
who
sho
uld
be c
on-
tact
ed r
egar
ding
the
spec
ific
atio
ns.
It is
exc
eedi
ngly
impo
rtan
t tha
tth
ere
be a
def
inite
cha
in o
fco
mm
unic
atio
n se
t up
for
liais
on b
etw
een
the
scho
ol s
yste
man
d th
e te
levi
sion
con
trac
tor.
It s
houl
d be
set
up
thro
ugh
spe-
cifi
c in
divi
dual
s, n
ot o
n a
depa
rtm
enta
lba
sis.
Est
ablis
hing
this
rela
tions
hip
initi
ally
will
pay
div
iden
ds to
both
the
scho
ol s
ys-
tem
and
inst
alle
r as
the
proj
ect p
rogr
esse
s.
Exp
lana
tions
DE
FIN
ITIO
NS
1.0
Bef
ore
the
supp
lier
goes
fur
ther
into
the
spec
ific
atio
ns, s
ome
term
s sh
ould
be
defi
ned
soth
at a
ll po
tent
ial s
uppl
iers
are
inag
reem
ent a
s to
the
prec
is)
desc
ript
ion
of th
e ite
m th
at is
up
for
bids
. In
the
tele
visi
on b
usin
ess,
diff
eren
t ter
ms
mea
n di
ffer
-en
t thi
ngs
in d
iffe
rent
are
asan
d in
dif
fere
nt s
uppl
iers
'sh
ops.
Sect
ion
1 de
fine
s te
rms
used
inth
ese
spec
ific
atio
ns. A
ny a
d-m
inis
trat
or m
ay h
ave
som
eot
her
term
s w
hich
sho
uld
be d
e-fi
ned
as a
par
t of
a sp
ecif
icat
ion
for
his
scho
ol. T
hese
wou
ldbe
pla
ced
in th
is s
ectio
n.
GE
NE
RA
L C
ON
DIT
ION
S2.
0Se
ctio
n 0
serv
ed to
info
rmth
ose
who
mig
ht p
rovi
de a
sys
-te
m a
s to
just
wha
t kin
dof
sys
tem
is w
ante
d. I
n th
is s
ectio
n,th
e te
levi
sion
sys
tem
sal
esm
an is
info
rmed
mor
e sp
ecif
ical
lyof
wha
t will
be
requ
ired
of
him
dur
ing
the
bidd
ing
proc
edur
es.
Thi
s se
ctio
n al
so s
erve
s to
qual
ify
him
as
a co
ntra
ctor
con
-fo
rmin
g to
acc
epte
d st
anda
rds,
who
will
be
able
to s
uppl
ypa
rts
and
serv
ice
and
who
has
bee
n in
bus
ines
s lo
ngen
ough
14
The
se s
peci
fica
tions
are
issu
ed to
pro
vide
gui
delin
es f
or th
ein
stal
latio
n an
d pe
rfor
man
ce o
f te
levi
sion
dis
trib
utio
n sy
stem
sto
be
inst
alle
d in
(na
me
of s
choo
l sys
tem
).
The
se s
peci
fica
tions
sup
erse
de a
ll pr
evio
us s
peci
fica
tions
for
syst
ems
of th
is ty
pe is
sued
by
this
off
ice.
The
se s
peci
fica
tions
sho
uld
not b
e in
terp
rete
d as
bei
ng c
om-
plet
ely
rigi
d. B
ecau
se o
f co
nsta
ntly
cha
ngin
g m
etho
ds, p
rod-
ucts
, and
sta
ndar
ds f
or tr
ansm
issi
on s
yste
ms
of th
is ld
nd, t
hey
will
be
peri
odic
ally
rev
iew
ed a
nd u
pdat
ed.
The
se s
peci
fica
tions
app
ly to
tele
visi
on d
istr
ibut
ion
syst
ems
inst
alle
d in
exi
stin
g bu
ildin
gs o
r in
stal
led
as a
par
t of
new
build
ings
, bui
ldin
g ad
ditio
ns, o
r re
mod
elin
g pr
ojec
ts.
0.1
INT
RO
DU
CT
ION
0.2
0.3
0.4
Ref
eren
ce s
igna
lFor
the
purp
ose
of th
ese
spec
ific
atio
ns th
e1.
1D
EFI
NIT
ION
Sst
anda
rd r
efer
ence
sig
nal o
f 0
dbm
is u
nder
stoo
d to
be
1 m
illi-
volt
acro
ss 7
5 oh
ms.
Hea
d-en
dThe
sys
tem
hea
d-en
d co
nsis
ts o
f th
e m
ain
ampl
ific
a-1.
2tio
n sy
stem
, ass
ocia
ted
ante
nnas
, and
con
vert
ers
used
to f
eed
the
over
all b
uild
ing
dist
ribu
tion
syst
em.
Out
of
reac
hEqu
ipm
ent a
nd c
able
will
be
reco
gniz
ed a
s be
ing
1.3
out o
f re
ach
whe
n in
exc
ess
of 7
fee
t 8 in
ches
fro
m a
loca
tion
whe
re a
per
son
mig
ht s
tand
.
Adj
acen
t cha
nnel
--T
wo
VH
F te
levi
sion
cha
nnel
s w
ill b
e co
n-si
dere
d as
adj
acen
t cha
nnel
s w
hen
ther
e is
less
than
6 m
ega-
cycl
es o
f sp
ectr
um s
pace
bet
wee
n th
em. E
xam
ple:
Cha
nnel
4an
d ch
anne
l 5 a
re a
djac
ent;
chan
nel 6
and
cha
nnel
7 a
re n
ot
1.4
to b
e ex
peri
ence
d in
the
MA
TV
sys
tem
bus
ines
s. A
sch
ool
adm
inis
trat
or m
ay a
lso
wis
h to
set
for
th h
ere
rule
s ab
out w
ork-
ing
in s
choo
ls (
wor
king
hou
rs, s
mok
ing,
etc
.).
Subs
ectio
n 2.
5 se
ts f
orth
the
info
rmat
ion
the
buye
r ne
eds
as a
part
of
a va
lid p
ropo
sal.
To
supp
ly th
e in
form
atio
n an
d sa
mpl
esou
tline
d in
this
sec
tion,
the
bidd
er w
ill h
ave
to v
isit
the
scho
olbu
ildin
g an
d m
ake
a de
taile
d "o
n-th
e-sc
ene"
insp
ectio
n of
the
plan
t. In
form
atio
n pr
ovid
ed in
the
diag
ram
of
the
prop
osed
syst
em w
ill e
nabl
e hi
s pr
opos
al to
be
com
pare
d in
det
ail w
ithco
mpe
titiv
e sy
stem
s in
term
s of
per
form
ance
by
a co
nsul
tant
or s
ervi
ce o
rgan
izat
ion.
It w
ill a
lso
prov
ide
abi
ll of
mat
eria
lsfr
om w
hich
it w
ill b
e po
ssib
le to
det
erm
ine
late
r if
cor
ners
wer
e cu
t bet
wee
n th
e dr
awin
g bo
ard
and
the
com
plet
edin
stal
-la
tion.
The
inst
alle
r w
ho u
nrol
ls c
able
at w
ill, i
nsta
lls a
sys
tem
with
rel
ativ
e ab
ando
n, tu
rns
the
ampl
ifie
r up
ful
l, an
d ch
ecks
the
syst
em b
y m
erel
y lo
okin
g at
the
pict
ure
will
obj
ect t
o pr
o-vi
ding
this
mat
eria
l. In
stal
lers
who
act
ually
"en
gine
er"
the
syst
ems
they
inst
all a
nd w
ho in
stal
l sys
tem
s of
utm
ost q
ualit
yw
ill h
ave
mos
t of
this
info
rmat
ion
befo
re th
ey b
egin
. The
im-
port
ance
of
sam
ple
conn
ecto
rs, c
ompl
etio
n da
tes,
war
rant
yde
tails
, and
ser
vice
man
uals
sho
uld
be o
bvio
us.
Prop
osal
s re
turn
ed w
ith s
peci
al te
chni
cal n
otes
[pa
ragr
aph
2.5.
7) s
houl
d be
car
eful
ly e
valu
ated
. Ins
talle
rs w
ith e
xten
sive
expe
rien
ce c
an b
ring
man
y th
ings
to th
e at
tent
ion
of th
e bu
yer
whi
ch c
ould
pre
sent
pro
blem
s in
the
fina
l sys
tem
. Thi
s, to
o, is
ase
ctio
n w
here
the
vend
or c
an ta
ke o
bjec
tion
to a
ny p
art o
f th
esp
ecif
icat
ions
.
The
sch
ool a
dmin
istr
atio
n m
ust p
rovi
de s
uffi
cien
t inf
orm
atio
nre
gard
ing
chan
nels
to b
e vi
ewed
, out
let l
ocat
ions
, sch
ool f
loor
plan
s, c
ondu
it di
agra
ms,
and
oth
er in
form
atio
n w
hich
will
aff
ect
the
cont
ract
or a
nd h
ow h
e go
es a
bout
his
wor
k. T
he m
ore
Ext
rane
ous
sign
alsA
n ex
tran
eous
sig
nal i
s an
y R
Fsi
gnal
or
any
tele
visi
on o
r ra
ndom
sign
al o
ther
than
the
sign
al th
e vi
ewer
wis
hes
to v
iew
.
The
con
trac
tor
agre
es to
inst
all a
new
dis
trib
utio
n sy
stem
or
toup
grad
e th
e ex
istin
g di
stri
butio
n sy
stem
to p
rovi
de r
ecep
tion
of o
pen-
and
clo
sed-
circ
uit c
hann
els
as s
peci
fied
by
the
syst
emow
ners
. The
con
trac
tor
agre
es th
atth
e co
mpl
eted
sys
tem
, in-
clud
ing
port
ions
of
any
exis
ting
syst
em r
euse
d, w
ill b
e in
stal
led,
will
per
form
, and
will
be
war
rant
ed a
ccor
ding
to th
e sp
ecif
ica-
tions
that
fol
low
.
The
con
trac
tor
agre
es to
con
form
with
gen
eral
ly a
ccep
ted
stan
dard
s of
inst
alla
tion
prac
tice
for
syst
ems
of th
is k
ind.
The
fina
l ins
talla
tion
will
con
form
toal
l app
licab
le lo
cal a
ndna
tiona
l cod
es (
fire
, ele
ctri
cal,
etc.
).
Lab
or a
nd s
yste
m c
ompo
nent
s su
pplie
d ne
w a
s a
part
of
a co
n-tr
act i
ssue
d as
a r
esul
t of
this
spe
cifi
catio
n w
ill b
e un
der
war
-ra
nty
at le
ast o
ne y
ear
from
the
date
of
acce
ptan
ce. (
See
para
grap
h 2.
5.6.
)
The
con
trac
tor
mus
t hav
e be
en in
the
busi
ness
of
inst
alla
tion
and
serv
ice
of th
e ty
pe o
f sy
stem
des
crib
ed f
or a
rea
sona
ble
peri
od o
f tim
e. T
he c
ontr
acto
r sh
all s
how
sat
isfa
ctor
y ev
iden
ceth
at h
e m
aint
ains
a f
ully
equ
ippe
d se
rvic
e or
gani
zatio
n ca
pabl
eof
fur
nish
ing
inst
alla
tion
and
serv
ice
of th
is ty
pe o
f sy
stem
.T
he c
ontr
acto
r sh
all a
lso
mai
ntai
n a
good
sto
ck o
f re
plac
emen
tpa
rts.
1.5
2.1
GE
NE
RA
L C
ON
DIT
ION
S
2.2
2.3
2.4
To
qual
ify
for
cons
ider
atio
n, a
bid
pro
posa
l mus
t con
tain
the
2.5
follo
win
g in
form
atio
n:
17
com
plet
e th
e in
vita
tion
to b
id,
the
mor
e co
mpe
titiv
e th
e pr
o-po
sals
will
be.
It m
ay a
ctua
llyta
ke a
s lo
ng to
pre
pare
spe
cifi
-ca
tions
for
pre
sent
atio
n to
pote
ntia
l con
trac
tors
as
it w
illfo
rth
e co
ntra
ctor
to p
rovi
de a
sys
tem
.
Thi
s se
ctio
n al
so s
erve
s to
set
fort
h w
hat o
ther
pap
erw
ork
will
be r
equi
red.
A r
elia
ble
cont
ract
orsh
ould
hav
e th
is in
form
atio
nat
his
fin
gert
ips;
the
less
rel
iabl
e w
ill n
ot. T
hein
form
atio
n an
ddi
agra
ms
aske
d fo
r in
sub
sect
ion
2.7
are
nece
ssar
y to
eas
yse
rvic
e of
the
syst
em in
yea
rs to
com
e.N
ote
that
par
agra
ph2.
7.4
asks
that
eac
h an
d ev
ery
outle
t in
the
syst
em b
e ch
ecke
d.So
me
20 p
erce
nt o
f th
e 5,
000
outle
ts p
rovi
ded
on th
e D
elaw
are
ET
V N
etw
ork
wer
e no
top
erat
ing
whe
n fi
rst f
ull
tech
nica
lch
ecks
wer
e m
ade,
bec
ause
of
indi
vidu
al p
robl
ems.
To
ensu
repr
oper
sys
tem
bala
nce
as o
utlin
ed in
late
rse
ctio
ns, a
ll ou
tlets
shou
ld b
e ch
ecke
d w
ith p
rope
rte
st in
stru
men
ts.
Che
ckin
gth
em w
ith a
rec
eive
r to
see
ifth
ere
is a
pic
tuie
pre
sent
is n
otad
equa
te. W
here
man
y sc
hool
sob
tain
sys
tem
ser
vice
on
a tim
ean
d m
ater
ials
bas
is f
rom
loca
lse
rvic
e or
gani
zatio
ns,
havi
ngth
ese
data
on
hand
will
spe
edse
rvic
e an
d cu
t dow
n on
the
cost
of s
ervi
ce c
alls
. The
y al
sow
ill b
e us
eful
whe
n th
e sy
stem
mus
t be
exte
nded
to s
erve
new
addi
tions
to th
e sc
hool
and
othe
r ar
eas
not i
nitia
lly s
erve
d.
GE
NE
RA
L I
NST
AL
LA
TIO
N3.
0Su
bsec
tions
3.1
and
3.2
aga
inde
al w
ith f
acto
rs th
at th
e
RE
QU
IRE
ME
NT
Ssc
hool
adm
inis
trat
ion
mus
tdi
ctat
e. B
e sp
ecif
ic a
bout
whe
reth
e ou
tlets
are
to g
o. L
ocat
e ex
act
spot
s w
ith a
n "X
" on
the
wal
l if
need
be.
Onc
e th
ey a
relo
cate
d, d
o no
t allo
w c
hang
ew
ithou
t app
rova
l by
a sp
ecif
ic p
erso
none
fam
iliar
with
the
reas
ons
for
the
loca
tion
in th
e fi
rst p
lace
. Do
not
let t
he c
on-
trac
tor
talk
you
into
alo
catio
n ea
sy f
or h
im; l
ocat
e th
eou
tlets
whe
re th
ey w
ill d
o th
e be
st jo
bfo
r yo
ur c
lass
room
s fr
omth
est
andp
oint
of
the
educ
atio
nal t
ask
tobe
per
form
ed.
18
A s
impl
e bl
ock
diag
ram
of
the
syst
em to
be
inst
alle
d m
ust
bedr
awn
up in
dica
ting
by c
atal
og n
umbe
r th
e ty
pe o
f am
plif
ier,
type
of
split
ters
and
taps
, and
type
of
cabl
e to
be
used
.
Est
imat
ed s
igna
l lev
els
thro
ugho
ut th
e sy
stem
are
to b
e sh
own
base
d on
0 d
bm s
igna
l inp
ut to
the
ampl
ifie
r on
cha
nnel
s 2
and
13. T
he u
se o
f ex
istin
g eq
uipm
ent,
if a
ny, s
houl
d be
sho
wn
onth
is d
iagr
am.
Whe
re th
e sy
stem
will
mak
e us
e of
an
exis
ting
tele
visi
on a
n-te
nna
and
asso
ciat
ed U
HF
to V
HF
conv
erte
rs, i
f an
y, s
igna
lst
reng
th o
f al
l nor
mal
ly v
iew
ed te
levi
sion
sig
nals
will
be
read
at th
e ou
tput
of
the
ante
nna
syst
em a
t a p
oint
pri
or to
any
dist
ribu
tion
equi
pmen
t.
Whe
re a
tele
visi
on a
nten
na s
yste
m is
to b
e pr
ovid
ed a
s a
part
of th
is b
id, t
he c
ontr
acto
r m
ust j
ustif
y th
e ty
pe p
ropo
sed.
In th
e ca
se o
f a
build
ing
addi
tion,
whe
re th
e ne
w p
ortio
n of
the
syst
em w
ill ta
ke a
sig
nal f
rom
the
exis
ting
syst
em, t
heco
ntra
ctor
mus
t inc
lude
the
fiel
d st
reng
th o
f th
e no
rmal
ly u
sed
chan
nels
as
spec
ifie
d at
the
tap-
off
poin
t as
a pa
rt o
f an
y pr
o-po
sal.
The
tap-
off
poin
t mus
t be
spec
ific
ally
loca
ted
in w
ritin
gan
d as
a p
art o
f pa
ragr
aph
2.5.
1 ab
ove.
(Se
e pa
ragr
aph
7.3.
3.)
2.5.
1
2.5.
2
2.5.
3
2.5.
4
A s
ampl
e of
the
clas
sroo
m r
ecei
ver
conn
ectio
n de
vice
to b
e2.
5.5
supp
lied
mus
t be
prov
ided
.
2.5.
6A
sta
tem
ent o
f w
arra
nty
cove
ring
the
com
plet
ed s
yste
m a
s pr
o-po
sed
mus
t be
prov
ided
.
Any
spe
cial
tech
nica
l con
side
ratio
ns w
hich
the
vend
or c
on-
2.5.
7si
ders
per
tinen
t to
bette
r de
fine
the
syst
em to
be
prov
ided
shou
ld b
e in
clud
ed in
the
initi
al p
ropo
sal.
A s
yste
m c
ompl
etio
n da
te m
ust a
ccom
pany
any
bid
.
19
2.5.
8
.,{11
1111
Net
Allo
win
g ca
ble
to b
e in
stal
led
atth
e di
scre
tion
of th
ein
stal
ler
lead
s to
situ
atio
nssu
ch a
s th
is. T
he r
esul
t was
an u
nsig
htly
inst
alla
tion
in th
e ha
llway
and
perm
anen
tda
mag
e to
a s
olid
oak
doo
rfr
ame.
Not
e, to
o, th
e ex
cess
cabl
e le
ft b
y th
e in
stal
ler
insi
de th
e do
or. A
dequ
ate
supe
rvis
ion
as w
ell a
ssp
ecif
icat
ion
by th
e sc
hool
will
prev
ent t
his
situ
atio
n.
Mal
0110
/0.1
.112
-0,J
A.M
OIM
M.e
aliZ
I.14
/1,1
17.0
-..1
.1.
Thi
s pi
ctur
e sh
ows
the
resu
ltsof
a n
eatly
wir
ed s
ys-
tem
, as
defi
ned
inpr
epla
nnin
g sp
ecif
icat
ions
agre
edup
on b
y th
esc
hool
adm
inis
trat
or a
ndth
e in
stal
ler
ofth
e T
V s
yste
m.
RI.
111,
LIM
USI
e
r.
1
20
Spec
ific
ope
ratio
n an
d se
rvic
em
anua
ls o
n th
e eq
uipm
ent p
ro-
pose
d as
a p
art o
f an
y bi
dsh
ould
be
subm
itted
with
bid
pro-
posa
ls.
2.5.
9
Whe
re f
easi
ble,
exi
stin
g sy
stem
san
d eq
uipm
ent a
re to
be
used
.2.
6(S
ee p
arag
raph
2.5
.1.)
Equ
ipm
ent
deem
ed s
urpl
us b
y sy
stem
rede
sign
rem
ains
the
prop
erty
of
the
pres
ent o
wne
r an
dsh
ould
be tu
rned
ove
r to
the
owne
r'sse
rvic
e or
gani
zatio
n or
to a
nyot
her
desi
gnat
ed p
erso
n.
Follo
win
g a
succ
essf
ul p
erfo
rman
cede
mon
stra
tion
(sec
tion
10)
and
prio
r to
che
ckou
t of
the
syst
emby
the
owne
r's s
ervi
ceor
gani
zatio
n, in
form
atio
n in
trip
licat
e is
to b
e pr
ovid
ed. T
his
info
rmat
ion
will
con
sist
of
Com
plet
e se
rvic
e da
ta in
clud
ing
sche
mat
ic d
iagr
ams
and
mai
n-te
nanc
e m
anua
ls o
f al
l new
equi
pmen
t sup
plie
d as
a p
art
of
this
con
trac
t.
A c
ompl
ete
syst
em b
lock
diap
show
ing
as a
ccur
atel
y as
poss
ible
all
equi
pmen
t, sp
litte
v., t
aps,
and
outle
ts a
s w
ell a
sca
ble
leng
ths.
Not
es r
elat
ing
this
dia
gram
to th
e di
agra
m r
e-qu
ired
in p
arag
raph
2.7
.3 s
houl
dbe
incl
uded
.
A c
ompl
ete
build
ing
floo
r pl
an o
nw
hich
the
loca
tions
of
all
equi
pmen
t, sp
litte
rs, t
aps,
and
out
lets
are
spec
ific
ally
loca
ted.
Cab
le r
outin
g th
roug
hout
the
build
ing
isto
be
accu
rate
lysh
own.
A c
ompl
ete
list o
f si
gnal
str
engt
hre
adin
gs ta
ken
on e
ach
chan
-ne
l use
d in
the
scho
ol a
nd a
t the
inpu
t of
the
head
-end
am
pli-
fier
, the
out
put o
f th
e he
ad-e
ndam
plif
ier,
the
inpu
t and
out
put
of a
ll su
bseq
uent
rea
mpl
ifie
rs, a
ndal
l tel
evis
ion
outle
ts in
the
syst
em. (
Rea
ding
s to
be
mad
ew
ith a
n ap
prov
ed f
ield
str
engt
hm
eter
rel
ativ
e to
0 d
bm.)
21
2.7
2.7.
1
2.7.
2
2.7.
3
2.7.
4
Inst
alla
tion
of c
able
cla
mps
in m
orta
r as
sho
wn
here
ispo
or p
ract
ice,
not
onl
y da
mag
ing
toth
e ca
ble
but n
ota
long
-las
ting
inst
alla
tion.
Spe
cifi
catio
nssh
ould
def
ine
acce
ptab
le c
onst
ruct
ion
prac
tice.
22
Cab
les
inst
alle
d on
mas
onry
wal
ls s
houl
d be
car
eful
lycl
ampe
d, a
s in
this
cas
e, to
pre
vent
pin
chin
g or
bre
ak-
ing.
Cla
mps
sho
uld
be in
stal
led
in b
rick
, not
mor
tar.
1Sy
stem
s w
ill n
ot b
e de
emed
com
plet
e un
til th
ey h
ave
been
chec
ked
by th
e ow
ner's
ser
vice
org
aniz
atio
n. P
aym
ent w
ill n
otbe
mad
e un
til s
uch
chec
ks a
re c
ompl
ete
and
defi
cien
cies
as
note
d ar
e co
rrec
ted.
2.8
Equ
ipm
ent l
ocat
ions
as
spec
ifie
d by
bui
ldin
g pe
rson
nel a
re3.
1G
EN
ER
AL
IN
STA
LL
AT
ION
indi
cate
d in
the
atta
ched
mat
eria
l. Sh
ould
the
cont
ract
or f
ind
RE
QU
IRE
ME
NT
Sth
ese
loca
tions
uns
uita
ble,
he
is to
so
indi
cate
cle
arly
in w
ritin
gas
wel
l as
diag
ram
mat
ical
ly in
his
pro
posa
l,an
d he
sho
uld
prov
ide
a pr
opos
al f
or a
sys
tem
mak
ing
use
of a
ltern
ate
loca
-tio
ns.
Tel
evis
ion
outle
ts a
re to
be
prov
ided
at d
esig
nate
d po
ints
in3.
2ea
ch r
oom
. Dep
artu
res
from
the
desi
gnat
ed lo
catio
ns m
ust h
ave
the
appr
oval
of
build
ing
pers
onne
l and
the
owne
r's s
ervi
ceor
gani
zatio
n.
Cab
le r
uns
shou
ld b
e as
sho
rt a
s po
ssib
le. A
nea
t, w
ell-
prot
ec-
ted
inst
alla
tion
is n
eces
sary
. All
cabl
e in
stal
led
on th
e su
rfac
eof
wal
ls a
nd n
ot p
rote
cted
by
cond
uit o
r m
oldi
ng o
f so
me
type
shou
ld b
e pl
aced
wel
l out
of
reac
h. (
See
subs
ectio
n 1.
3.)
Cab
le w
ithin
rea
ch o
f st
uden
ts m
ust b
e pl
aced
in m
oldi
ng o
rbe
oth
erw
ise
conc
eale
d. M
oldi
ng s
houl
d be
inst
alle
d as
nea
tlyan
d un
obtr
usiv
ely
as p
ossi
ble.
Sta
ndar
d, r
eadi
ly a
vaila
ble
fit-
tings
sho
uld
be u
sed
thro
ugho
ut.
All
cabl
e in
stal
led
on th
e ou
tsid
e of
bui
ldin
gs w
ithin
rea
ch o
fan
y no
rmal
traf
fic
area
or
with
in r
each
of th
e gr
ound
or
por-
tions
of
the
build
ing
on th
e gr
ound
out
side
the
build
ings
gen
-er
ally
acc
essi
ble
to a
ny p
erso
n m
ust b
e in
con
duit
prop
erly
inst
alle
d w
ith a
ppro
pria
te f
ittin
gs, b
ushi
ngs,
and
cla
mps
.
3.3
3.4
3.5
Bei
ng c
onci
se w
ill a
llow
you
to r
ecei
ve b
ids
base
d on
educ
a-tio
nal n
eed
with
out a
lot o
f"j
ust i
n ca
se th
eych
ange
thei
rm
inds
" th
inki
ng in
them
.
Thi
s w
rite
r ag
rees
that
the
man
yst
ipul
atio
ns o
f in
stal
latio
npr
actic
e in
sec
tion
3 ap
pear
tobe
unn
eces
sary
and
that
com
mon
sens
e sh
ould
di -
tate
thes
e pr
actic
es. L
eavi
ngin
stal
latio
n pr
ac-
tice
who
lly to
the
disc
retio
nof
the
cont
ract
ors
will
prov
ide
you
with
alo
wer
cos
t sys
tem
, but
mai
nten
ance
nee
ds w
ill b
egr
eate
r an
d fu
ture
gro
wth
will
be
limite
d. W
arra
ntie
sdo
not
cove
r ca
ble
pulle
d lo
ose
by s
tude
nts;
this
is v
anda
lism
. War
-ra
ntie
s on
the
syst
em d
o no
t cov
erle
aks
due
to p
oor
calk
ing
with
wro
ng m
ater
ial;
this
isbu
ildin
g m
aint
enan
ce. W
arra
ntie
sdo
not
cov
er lo
ss o
f le
sson
mat
eria
l cau
sed
by a
cab
le r
un to
otig
htly
aro
und
a be
nd b
reak
ing
orcu
t whe
re it
ent
ers
abo
xw
ithou
t ben
efit
of a
gro
mm
et;
this
is p
oor
spec
ific
atio
npl
an-
ning
.
Prop
erly
inst
alle
d M
AT
Vam
plif
iers
are
nea
tly in
-st
alle
d in
pro
tect
ive
cabi
nets
with
all
conn
ectio
nsla
bele
d. T
he in
stal
latio
n sh
ould
be f
ully
acc
essi
ble
for
serv
ice.
24
All
cabl
e in
stal
led
on th
e su
rfac
e of
wal
ls w
ithin
a b
uild
ing
and
not c
once
aled
(in
con
duit,
wir
emol
d, o
r ot
her
sim
ilar
devi
ces)
will
be
secu
red
at 2
4-in
ch in
terv
als.
All
cabl
e in
stal
led
on th
e ou
tsid
e of
any
build
ing
will
be
clam
ped
ever
y 3
feet
. Cla
mps
will
als
o be
pro
vide
d w
ithin
3in
ches
of
the
begi
nnin
g an
d en
d of
eac
h be
nd in
the
cabl
e.
Cab
le c
lam
ps, s
crew
s, o
ther
har
dwar
e, a
nd e
lect
roni
c de
vice
ssu
bjec
t to
the
effe
ct o
f w
eath
er w
ill b
e m
anuf
actu
red
or tr
eate
din
suc
h a
man
ner
as to
be
impe
rvio
us to
rus
t and
cor
rosi
on f
orat
leas
t tw
o ye
ars.
Out
side
cab
le c
lam
ps a
nd o
ther
har
dwar
e se
cure
d to
mas
onry
wal
ls, i
nsid
e or
out
side
, mus
t be
secu
red
at p
oint
s no
t with
inth
e bu
ildin
g m
orta
r ex
cept
whe
re b
rick
or
bloc
k is
loos
e.
3.6
3.7
3.8
3.9
The
use
of
nail
ring
s fo
r se
curi
ng c
able
is p
rohi
bite
d.3.
10
The
use
of
plas
tic a
ncho
rs o
ut-o
f-do
ors
or in
wal
ls s
ubje
ct to
3.11
extr
emes
of
tem
pera
ture
s is
pro
hibi
ted.
All
cabl
e be
nds
will
hav
e a
radi
us o
f no
t les
s th
an e
ight
tim
es3.
12th
e ca
ble
diam
eter
.
No
mor
e th
an 6
inch
es o
f fr
ee h
angi
ng c
able
will
be
allo
wed
on
the
outs
ide
ofan
y bu
ildin
g.
All
cabl
e w
hich
mus
t run
acr
oss
roof
area
s, s
uch
as th
at w
hich
mig
ht r
un f
rom
the
base
of
an a
nten
na m
ast,
will
be
run
inw
eath
ertig
ht c
ondu
it w
ith p
rovi
sion
for
dra
inag
e of
inte
rnal
cond
ensa
tion
for
that
dis
tanc
e w
here
it is
run
ning
par
alle
l to
the
surf
ace
of th
e ro
of.
Con
duit
will
be
supp
orte
d at
5-f
oot i
nter
vals
. The
con
duit
isbe
abo
ve n
orm
al "
pudd
le"
leve
l and
will
be
of s
uch
a co
lor
that
it w
ill n
ot p
rese
nt a
haz
ard.
25
3.13
3.14
r Cab
le s
houl
d be
sec
ured
with
ade
quat
e m
esse
nger
or
clam
ped
arou
nd th
e pe
rim
eter
of
roof
tops
.T
his
poor
1ar
rang
emen
t lea
ds to
a h
azar
d fo
rm
aint
enan
ce w
ork-
ers,
dam
age
tove
ntila
tion,
and
pos
sibl
e vo
idin
g of
! i bon
ds o
n ro
of a
nd v
ent.
bfav
illk
111.
1,10
,7, .
..waf
t ...a
y....
.
Alth
ough
mos
t wir
ing
cont
ract
ors
have
a f
airl
y la
rge
wor
kcr
ew, f
ew o
fth
ese
wor
kers
are
rea
llyac
com
plis
hed
tech
nica
lpe
ople
. Bec
ause
muc
h of
the
wor
k is
mec
hani
cal i
n na
ture
,m
any
firm
sem
ploy
low
er p
aid
cons
truc
tion
pers
onne
l. In
man
y ca
ses,
thes
e cr
ews
will
run
cab
lew
here
ver
nece
ssar
y to
spen
d th
e le
ast a
mou
nt o
f tim
ein
the
scho
ol. T
he r
esul
ts c
anbe
app
allin
g.
Sect
ion
3 se
rves
to a
ssur
eth
e ed
ucat
or th
at th
e ca
ble
is s
e-cu
rely
inst
alle
d in
suc
h a
man
ner
that
it w
ill r
esis
t nat
ural
haza
rds
whi
ch m
ight
cau
se it
todr
oop
and
com
e lo
ose
orot
her-
wis
e fa
il. C
able
cla
mps
that
are
impe
rvio
us to
rus
t will
last
man
y ye
ars,
not
just
thro
ugh
the
firs
t war
rant
y ye
ar.
Whe
reen
ough
cla
mps
are
use
d, th
eca
ble
will
rem
ain
neat
alth
ough
tem
pera
ture
cha
nges
and
stud
ents
wor
k on
it th
roug
hout
the
year
. Eve
n if
one
clam
p do
es f
all o
ut, t
here
are
enou
gh le
ft to
keep
the
cabl
e ne
atly
in p
lace
. IIIIII
IMIM
INIM
PIE
J.11
411I
aela
...
Cre
w r
an c
able
at t
heir
ow
ndi
scre
tion
abov
e; h
ere,
prep
lann
ed s
peci
fica
tions
pre
vaile
d, a
ssh
own
by th
ecl
ampe
d w
irin
g ar
ound
the
peri
met
erof
the
roof
top.
26
1111
.-...
....1
1
Am
plif
ier
and
othe
r he
ad-e
nd e
quip
men
t ins
talle
d in
fin
ishe
d3.
15ar
eas
of th
e sc
hool
will
be
inst
alle
d in
equi
pmen
t cab
inet
sca
pabl
e of
bei
ng lo
cked
. Suc
h ca
bine
ts w
ill b
e of
a n
eutr
alco
lor,
com
plim
enta
ry to
the
deco
r of
the
area
in w
hich
they
are
inst
alle
d.
All
equi
pmen
t will
be
inst
alle
d so
as
not t
o in
terf
ere
with
3.16
scho
ol p
lant
mai
nten
ance
and
in s
uch
a m
anne
r th
at it
can
be
easi
ly m
aint
aine
d. E
quip
men
t sho
uld
be in
stal
led
utili
zing
con
-ne
ctor
s on
sig
nal a
nd p
ower
cab
les
whi
ch a
llow
for
eas
y re
-m
oval
of
equi
pmen
t for
ben
ch s
ervi
ce.
No
elec
tron
ic e
quip
men
t sub
ject
to p
erio
dic
mai
nten
ance
is to
3.17
be in
stal
led
in a
ny lo
catio
n ne
cess
itatin
g us
e of
a la
dder
tore
ach
it (m
ast-
mou
nted
pre
ampl
ifie
rs e
xclu
ded)
.
Cab
le a
cces
s sl
eeve
s an
d co
ndui
ts f
or s
igna
l cab
le a
re to
be
3.18
prov
ided
whe
re d
irec
ted.
All
cabl
e in
stal
led
in c
lose
pro
xim
ity to
ste
am li
nes,
wat
er3.
19pi
pes,
and
oth
er u
tiliti
es w
hich
mig
ht a
dver
sely
aff
ect t
heop
erat
ion
of th
e sy
stem
sho
uld
be in
stal
led
with
sui
tabl
e pr
o-te
ctio
n, u
sing
the
utm
ost c
are.
The
cab
le s
houl
d no
t be
allo
wed
to c
ome
in d
irec
t con
tact
with
suc
h ut
ility
pip
es a
nd c
ondu
its.
Max
imum
cle
aran
ce p
ossi
ble
shou
ld b
e m
aint
aine
d. U
nder
no
circ
umst
ance
s w
ill th
e ca
ble
be r
un in
pip
e ha
nger
s pr
ovid
edfo
r ab
ove
pipe
s or
tape
d to
han
gers
or
pipe
s th
emse
lves
.
Whe
reve
r ca
ble
ente
rs s
heet
met
al b
oxes
of
any
type
, app
ro-
3.20
pria
te p
rote
ctiv
e bu
shin
gs o
r gr
omm
ets
are
to b
e su
pplie
d.
All
hole
s in
wal
ls, c
eilin
gs, o
r ot
her
part
s of
the
build
ing
mad
e3.
21by
the
cont
ract
or to
pro
vide
for
cab
le a
cces
s w
ill b
e ap
pro-
pria
tely
cal
ked
and
repa
ired
. Cal
king
des
igne
d fo
r th
e pa
rtic
ular
!,,w
v.w
rmrT
In-^
"w,..
.,
Cab
les
shou
ld b
e pl
aced
in s
uch
a m
anne
r as
to n
otin
terf
ere
with
nor
mal
bui
ldin
g op
erat
ion.
Her
e is
an-
othe
r ob
viou
s ca
se o
f th
e M
AT
V in
stal
ler's
usi
ng h
isow
n ju
dgm
ent w
ithou
t ade
quat
esu
perv
isio
n.
In a
pro
perl
y in
stal
led
tele
visi
on s
yste
m,
tele
visi
onca
bles
are
run
in s
pace
s re
serv
ed f
or b
uild
ing
serv
ices
such
as
heat
ing
and
tele
phon
e. T
he c
able
sho
uld
not
detr
act f
rom
the
look
s of
he
build
ing
or in
terf
ere
with
norm
al b
uild
ing
oper
atio
n.
-r-
a`A 0
.4. )
....
...,
L4.
.....
....t.
.06
.1
..±t;;
;.'...
--P
:..
-yr
.-
....
,.:t
.i.,
'I*.
..t.
.s
.v
7
28
envi
ronm
ent w
ill b
e us
ed. I
n fi
nish
ed a
reas
,da
mag
e to
pai
nt,
plas
ter,
and
aco
ustic
al ti
le w
ill b
e re
pair
ed b
y th
e co
ntra
ctor
.
Dri
p lo
ops
will
be
prov
ided
whe
re c
able
ent
ers
the
scho
ol f
rom
3.22
the
outs
ide.
All
airb
orne
cab
le w
ill b
e su
ppor
ted
from
a s
uita
ble
mes
seng
er3.
23ca
ble.
The
con
trac
tor
is to
in -
fall
or a
rran
ge f
or th
e in
stal
latio
nof
4.1
POW
ER
RE
QU
IRE
ME
NT
Spe
rman
ent A
C p
ower
out
, its
at a
ll lo
catio
nsw
here
AC
pow
eris
nee
ded
for
oper
atio
n of
sys
tem
com
pone
nts.
Cor
ds b
etw
een
ampl
ifie
r ca
bine
ts a
nd n
earb
y av
aila
ble
AC
pow
erre
cept
acle
sm
ust n
ot e
xcee
d 6
feet
.
Whe
re th
e co
ntra
ctor
inst
alle
d a
new
pow
er o
utle
t to
prov
ide
4.2
pow
er f
or a
mpl
ifie
rs in
the
tele
visi
on s
yste
m, s
uch
outle
tssh
ould
be
on a
sep
arat
e ci
rcui
t if
at a
ll po
ssib
le. W
here
defi
-ci
enci
es in
the
exis
ting
elec
tric
al s
yste
m m
ake
this
impr
actic
al,
a su
itabl
e A
C o
verl
oad
devi
ceis
to b
e pr
ovid
ed a
s a
part
of
cabi
net w
irin
g as
des
crib
ed in
sub
sect
ion
4.3.
Suff
icie
nt A
C p
ower
out
lets
are
to b
e pr
ovid
ed w
ithin
equi
p-4.
3m
ent c
abin
ets
to s
uppl
y po
wer
to a
ll eq
uipm
ent
inst
alle
d w
ithin
the
cabi
net a
s w
ell a
s tw
o ad
ditio
nal o
utle
ts f
or u
se b
y m
aint
e-na
nce
pers
onne
l.
Pow
er c
ords
bet
wee
n A
C p
ower
out
lets
and
equ
ipm
ent c
abin
ets
4.4
will
be
14/3
S c
able
.
Thr
ee-w
ire
pow
er c
ircu
itry
and
wir
ing
devi
ces
will
be
used
4.5
thro
ugho
ut.
29
Poss
ibly
the
mos
t im
port
ant j
ustif
icat
ion
for
this
sec
tion
isth
atit
tells
the
cont
ract
or th
at th
e bu
yer
is s
ensi
tive
abou
t the
man
-ne
r in
whi
ch h
e in
stal
ls th
e eq
uipm
ent,
and
that
he
is s
ensi
tive
abou
t the
aes
thet
ic q
ualit
ies
of th
e bu
ildin
g an
d w
illbe
aw
are
of d
egra
ding
fac
tors
that
a p
oor
wir
ing
job
mig
ht p
rese
nt.
In te
rms
of o
btai
ning
com
petit
ive
prop
osal
s, s
ectio
n 3
serv
esto
def
ine
the
grad
e of
wor
kman
ship
req
uire
d so
that
all
bidd
ers
can
take
labo
r an
d m
ater
ial c
osts
into
con
side
ratio
n on
a n
earl
yeq
ual b
asis
. The
con
trac
tor
who
doe
s a
high
-qua
lity
cons
truc
-tio
n jo
b co
nsis
tent
ly h
as a
n eq
ual o
ppor
tuni
ty to
bid
in c
om-
petit
ion
with
the
cont
ract
or w
ho m
ay c
ut c
orne
rs to
keep
his
bid
pric
e do
wn.
To
dist
ribu
te s
igna
ls th
roug
hout
abu
ildin
g, ta
ps s
uch
as th
at s
how
n in
pho
togr
aph
are
nece
ssar
yto
ass
ure
qual
ity s
igna
ls o
n al
l par
ts o
f th
e ca
ble.
The
sesh
ould
be in
stal
led
whe
re th
ey c
an b
e ea
sily
ser
vice
d.
If p
ower
is a
vaila
ble
at a
n am
plif
ier
loca
tion,
thre
e-w
ire
grou
nd-
ing
type
out
lets
will
be
prov
ided
and
inst
alle
d in
lieu
of c
oro
can
adap
ters
.
An
eart
h or
wat
er p
ipe
grou
nd w
ill b
e pr
ovid
ed a
ndal
l hea
d-en
d eq
uipm
ent c
onne
cted
to it
. (E
arth
gro
und
is to
be
3/4-
inch
,10
-foo
t gro
und
rod
with
#6
copp
er w
ire
to c
abin
et.)
(Se
e su
b-se
ctio
n 6.
10.)
4.6
4.7
The
sys
tem
as
inst
alle
d w
ill p
rovi
de f
or d
istr
ibut
ion
of p
rope
rly
5.1
DIS
TR
IBU
TIO
N S
YST
EM
OPE
RA
TIO
Nba
lanc
ed a
nd a
djus
ted
adja
cent
cha
nnel
tele
visi
on s
igna
ls.
AN
D P
ER
FOR
MA
NC
E C
ON
SID
ER
AT
ION
S
Equ
ipm
ent t
hrou
ghou
t the
sys
tem
is to
be
inst
alle
d an
d op
er-
5.2
ated
as
reco
mm
ende
d by
the
equi
pmen
t man
ufac
ture
r.
All
equi
pmen
t is
to b
e ra
ted
for
cont
inuo
us d
uty
oper
atio
ns.
5.3
All
equi
pmen
t com
pone
nts
mak
ing
use
of A
C p
ower
are
to b
e5.
4fu
sed.
The
sys
tem
will
be
able
to d
istr
ibut
e N
.T.S
.C. c
olor
tele
visi
on5.
5si
gnal
s w
ithou
t deg
rada
tion.
The
sys
tem
will
mee
t bas
ic r
adia
tion
limits
as
spec
ifie
d by
the
5.6
FCC
.
All
devi
ces
inst
alle
d in
coa
xial
cab
le w
ill b
e de
sign
ed to
mat
ch5.
7th
e ch
arac
teri
stic
impe
danc
e of
the
cabl
e.
The
ove
rall
dist
ribu
tion
syst
em w
ill h
ave
a V
SWR
of
1.2
to 1
5.8
or b
ette
r fo
r V
HF.
31
POW
ER
RE
QU
IRE
ME
NT
S 4.
0A
lthou
gh th
e po
wer
dra
in is
sm
all f
or m
ost t
elev
isio
n am
plif
ica-
tion
equi
pmen
t, tie
equ
ipm
ent d
oes
need
pow
er. T
he m
ost
idea
l loc
atio
n fo
r th
e eq
uipm
ent m
ay n
ot h
ave
the
nece
ssar
ypo
wer
rec
epta
cles
to d
o th
e jo
b.
It is
pos
sibl
e th
at u
nles
s sp
ecif
icat
ions
in th
is s
ectio
n ar
e fo
l-lo
wed
, a s
choo
l cou
ld b
e eq
uipp
ed w
ith a
com
plet
e sy
stem
that
cann
ot b
e tu
rned
on.
Pro
vidi
ng p
ower
is in
deed
a c
ost f
acto
r in
prov
idin
g a
syst
em. T
he c
ontr
acto
r kn
ows
the
syst
em n
eeds
and
is th
e m
ost l
ogic
al o
ne to
arr
ange
for
suc
h po
wer
inst
alla
-tio
n. I
f th
e sc
hool
mai
nten
ance
per
sonn
el c
an p
rovi
de A
Cou
tlets
as
nece
ssar
y fo
r th
e M
AT
V in
stal
latio
n, th
e sp
ecif
ica-
firm
s as
issu
ed s
houl
d m
erel
y as
k th
at a
req
uest
for
inst
alla
tion
of th
e ne
cess
ary
rece
ptac
les
be p
rovi
ded
the
scho
ol b
y th
eco
ntra
ctor
as
a pa
r 1
of h
is b
id o
ffer
ing.
With
out a
wir
ing
spec
ific
atio
n se
tting
for
th A
C p
ower
requ
irem
ents
for
the
syst
em a
nd th
e re
spon
sibi
lity
for
thei
r in
stal
latio
n, s
ituat
ions
like
the
one
pict
ured
her
ew
ill s
oon
be p
reva
lent
.
I
32
The
sys
tem
ban
dwid
th e
xclu
sive
of
the
head
-end
am
plif
ier
will
5.9
be f
rom
10
MH
z to
900
MH
z, f
lat w
ithin
1.5
db
P/V
acro
ss th
eV
HF
port
ion
and
with
in 3
.0 d
b ac
ross
the
UH
F po
rtio
n.
Sign
al le
vels
at a
ll re
ceiv
er o
utle
ts w
ill b
e w
ell b
alan
ced.
Sys
-5.
10te
m le
vels
will
be
term
ed "
wel
l bal
ance
d" w
hen
the
diff
eren
cebe
twee
n an
y tw
o ad
jace
nt lo
w V
HF
band
tele
visi
on s
igna
ls(c
hann
els
2 th
roug
h 6)
doe
s no
t exc
eed
2 db
m a
nd th
e di
ffer
ence
acro
ss th
e en
tire
low
VH
F ba
nd d
oes
not e
xcee
d 6
dbm
. In
the
high
VH
F ba
nd (
chan
nels
7 th
roug
h 13
), a
djac
ent c
hann
els
shou
ld n
ot e
xcee
d 2
dbm
in le
vel d
iffe
renc
e, w
ith th
e di
ffer
ence
acro
ss th
e en
tire
high
VH
F fr
eque
ncy
rang
e no
t exc
eedi
ng 4
dbm
. Whe
re th
e su
pplie
r ca
nnot
sup
ply
a sy
stem
in li
ght o
fth
is r
equi
rem
ent,
he is
to s
o st
ate
in h
is o
rigi
nal p
ropo
sal.
(See
subs
ectio
n 1.
4; a
lso
para
grap
h 2.
5.7.
)
The
min
imum
out
put a
t any
out
let i
n th
e sy
stem
is to
be
0 db
m,
5.11
the
inpu
t bei
ng th
e si
gnal
s, o
pen
or c
lose
d ci
rcui
t, sp
ecif
ied
byth
e ow
ner.
The
max
imum
sig
nal a
vaila
ble
atan
y re
cept
acle
, mak
ing
use
ofno
rmal
ly v
iew
ed o
pen-
and
/or
clos
ed-c
ircu
it ch
anne
lsas
spe
ci-
fied
by
the
owne
r, w
ill n
ot e
xcee
d 20
dbm
.
A s
igna
l on
any
spec
ific
cha
nnel
, mea
sure
d at
any
tele
visi
onre
cept
acle
in th
e sy
stem
, will
be
with
in 1
5 db
m o
f th
esa
me
sign
al m
easu
red
at a
ny o
ther
rec
epta
cle
in th
e sy
stem
.
A c
hann
el 2
and
/or
chan
nel 1
3 te
levi
sion
sig
nal i
nser
ted
into
the
inpu
t of
the
head
-end
am
plif
icat
ion
syst
em a
ta
leve
l of
0 db
m w
ill b
e de
liver
ed a
t any
rec
epta
cle
in th
e sy
stem
with
inth
e lim
its o
f su
bsec
tions
5.1
1, 5
.12,
and
5.1
3 ab
ove.
(Se
ese
c-tio
n 10
.)
5.12
5.13
5.14
Gro
undi
ng is
impo
rtan
t not
onl
y fr
om a
fire
and
sho
ck h
azar
dst
andp
oint
, but
fro
m th
e st
andp
oint
of
syst
emop
erat
ion
as w
ell.
A w
ell-
grou
nded
sys
tem
will
not
radi
ate
a si
gnal
out
side
the
cabl
e, a
nd s
igna
ls w
ill b
e m
ore
effi
cien
tlytr
ansf
erre
d fr
om o
nepo
int t
o an
othe
r.
If a
sch
ool s
yste
m h
as s
peci
al e
lect
rica
lco
de r
equi
rem
ents
,th
ese
shou
ld b
e in
clud
ed in
this
sec
tion.
DIS
TR
IBU
TIO
N S
YST
EM
OPE
RA
TIO
N 5
.0H
ere
is w
here
a k
now
ledg
eabl
ese
rvic
eman
on
the
scho
ol
AN
D P
ER
FOR
MA
NC
Esy
stem
sta
ff, o
r a
cons
ulta
ntre
tain
ed b
y th
e sc
hool
sys
tem
,C
ON
SID
ER
AT
ION
Sw
ill h
elp
the
scho
ol to
rea
lize
the
bene
fit o
fsu
ch s
peci
fica
tions
.
Sect
ion
5 sa
ys s
impl
y th
at a
ll ou
tlets
thro
ugho
ut th
e sy
stem
will
hav
e a
prop
er a
mou
nt o
f si
gnal
. It s
ays
that
one
sig
nal
will
be
as s
tron
g as
ano
ther
at t
he s
ame
outle
t,an
d it
says
that
one
sign
al w
ill b
e ab
out
the
sam
e st
reng
th a
t eve
ry o
utle
t in
the
syst
em. I
t say
s th
at s
igna
ls v
iew
edw
ill n
ot b
e bo
ther
ed b
yot
her
unw
ante
d si
gnal
s. I
t set
s fo
rth
som
eea
sily
mea
sure
dte
chni
cal p
aram
eter
s. N
o m
atte
r w
hat t
he s
yste
m is
to c
arry
CC
TV
, 250
0 M
Hz
conv
erte
d T
V, o
r op
en-c
ircu
itT
V s
igna
lsif
the
perf
orm
ance
con
side
ratio
ns o
utlin
edhe
re a
re f
ollo
wed
, the
resu
lt w
ill b
e cl
ean,
cle
ar s
igna
ls th
at w
ill n
otin
terf
ere
with
each
oth
er e
ven
whe
n it
beco
mes
nec
essa
ry to
put
sign
als
onad
jace
nt c
hann
els.
A w
ord
rega
rdin
g te
levi
sion
rec
eive
rs!
Itis
pos
sibl
e to
neg
ate
all e
ffor
ts o
f a
fine
dis
trib
utio
n sy
stem
inst
alla
tion
by p
ur-
chas
e an
d co
nnec
tion
of lo
w-q
ualit
y te
levi
sion
rece
iver
s. O
lder
,ill
-mai
ntai
ned
rece
iver
s ca
n in
trod
uce
nois
e an
din
terf
erin
gsi
gnal
s in
to th
e di
stri
butio
n sy
stem
.In
terf
eren
ce b
etw
een
chan
nels
(cr
oss
mod
ulat
ion)
can
occ
ur in
the
rece
iver
if th
ele
vel f
eedi
ng th
e re
ceiv
er is
hig
h an
d th
e re
ceiv
erse
lect
ivity
isno
t lim
ited.
To
prov
ide
optim
umvi
ewin
g on
a m
ultic
hann
elsy
stem
, rec
eive
r qu
ality
doe
sbe
com
e a
fact
or.
34
i
The
re w
ill b
e a
min
imum
RF
isol
atio
n be
twee
n re
ceiv
er a
nd5.
15ca
ble
of 9
dbm
thro
ugho
ut th
e sy
stem
for
VH
F.
The
re w
ill b
e a
min
imum
RF
isol
atio
n be
twee
n re
ceiv
ers
at-
5.16
tach
ed to
the
syst
em o
f 18
dbm
.
Ext
rane
ous
sign
als
pres
ent t
hrou
ghou
t the
sys
tem
will
not
ex-
5.17
ceed
a le
vel 5
0 db
m b
elow
any
des
ired
sig
nal.
If a
pplic
able
, ope
n/cl
osed
-cir
cuit
2500
MH
z sw
itchi
ng w
ill b
e6.
1SP
EC
IAL
FU
NC
TIO
NS
prov
ided
in e
ach
scho
ol. A
sim
ple
switc
h is
to b
e pr
ovid
ed to
switc
h th
e en
tire
dist
ribu
tion
syst
em f
rom
the
ante
nna
(off
-th
e-ai
r) to
the
clos
ed-c
ircu
it ca
ble
or to
the
outp
ut o
f a
2500
MH
zsi
gnal
con
vert
er. T
he c
ontr
ol s
witc
h is
to b
e lo
cate
d in
a c
entr
alad
min
istr
ativ
e po
int a
s di
rect
ed; h
owev
er, t
he s
witc
hing
may
be a
ccom
plis
hed
by a
rem
ote
rela
y.
As
an a
ltern
ativ
e to
sub
sect
ion
6.1
abov
e, th
e bi
dder
may
pre
-6.
2se
nt a
pro
posa
l pro
vidi
ng f
or th
e si
mul
tane
ous
dist
ribu
tion
and
view
ing
of a
ll si
gnal
s sp
ecif
ied
as in
nor
mal
use
with
in th
esc
hool
com
plex
on
a si
ngle
cab
le.
As
a se
cond
alte
rnat
ive
to s
ubse
ctio
n 6.
1 ab
ove,
the
bidd
er m
ay6.
3pl
an to
pro
vide
for
sim
ulta
neou
s di
stri
butio
n of
all
sign
als
tobe
vie
wed
in th
e sc
hool
ove
r a
mul
ti-ca
ble
syst
em.
Prov
isio
ns f
or lo
cal o
rigi
natio
n of
tele
visi
on s
igna
ls f
or d
istr
i-6.
4bu
tion
thro
ugho
ut th
e sc
hool
will
be
prov
ided
as
dire
cted
.
Solid
sta
te o
r tr
ansi
stor
ized
equ
ipm
ent i
s ne
ither
pre
ferr
ed n
or7.
1E
LE
CT
RO
NIC
EQ
UIP
ME
NT
proh
ibite
d. I
f a
bidd
er w
ishe
s to
bas
e a
prop
osal
on
the
use
ofSP
EC
IFIC
AT
ION
S
35
solid
sta
te e
quip
men
t, he
may
do
so, r
ealiz
ing
that
the
prop
osal
will
be
cons
ider
ed o
n th
e ba
sis
of e
cono
mic
cons
ider
atio
ns,
guar
ante
ed p
erfo
rman
ce, a
nd in
ligh
t of
the
pres
ent s
tate
of
the
art o
f te
levi
sion
sig
nal d
istr
ibut
ion.
7.2
Hea
d-E
nd A
mpl
ifie
rs
Am
plif
iers
sup
plie
d as
par
t of
a co
ntra
ct is
sued
3S
a re
sult
of7.
2.1
thes
e sp
ecif
icat
ions
mus
t be
capa
ble
of p
rovi
ding
at
leas
t 6 d
bmm
ore
outp
ut th
an th
e ac
tual
loss
of
the
syst
em th
e am
plif
ier
feed
s. (
See
sect
ion
10.)
Bro
adba
nd a
mpl
ifie
rs a
re a
ccep
tabl
e in
any
sys
tem
hav
ing
anac
tual
loss
fig
ure
of 4
0 db
m o
r le
ss. W
here
, bec
ause
of
aca
l-cu
late
d fi
gure
, a s
yste
m w
ith a
sin
gle
broa
dban
dam
plif
ier
isco
ntra
cted
for
and
the
actu
al lo
ss f
igur
e ex
ceed
s 40
dbm
,th
eco
ntra
ctor
agr
ees
to c
onfo
rm w
ith p
arag
raph
s 7.
2.3
and
7.2.
4of
thes
e sp
ecif
icat
ions
at n
o ex
tra
cost
to th
e ow
ner.
7.2.
2
Shou
ld th
e sy
stem
hav
e a
calc
ulat
ed lo
ss f
igur
e in
exc
ess
of7.
2.3
40 d
bm a
nd le
ss th
an 6
0 db
m, a
bro
adba
ndam
plif
icat
ion
syst
emw
ill b
e ac
cept
able
. Whe
re th
e us
e of
mor
e th
an o
ne b
road
band
ampl
ifie
r in
cas
cade
is p
ropo
sed,
spe
cifi
c pe
rfor
man
ce s
peci
fica
-tio
ns o
f su
ch a
n ar
rang
emen
t mus
t be
set f
orth
. If
the
bidd
erpr
efer
s, h
e m
ay s
et f
orth
the
mer
its o
f th
e us
e of
str
ip a
mpl
ifie
rsfo
r a
syst
em w
ith th
ese
loss
es a
nd p
ropo
se th
eir
use
as a
nal
tern
ate.
Sho
uld
the
actu
al lo
sses
of
the
syst
em e
xcee
d 60
dbm
once
inst
alle
d, th
e co
ntra
ctor
agr
ees
toco
nfor
m to
par
agra
ph7.
2.4
at n
o ad
ditio
nal c
harg
e to
the
owne
r.
For
syst
ems
with
act
ual l
oss
figu
res
of 6
0 db
m o
r hi
gher
, sin
gle
7.2.
4ch
anne
l am
plif
iers
are
req
uire
d.
If s
ingl
e ch
anne
l am
plif
iers
are
use
d, s
uita
ble
mix
ing
netw
orks
will
be
prov
ided
to c
ombi
ne th
e ou
tput
s of
thes
e am
plif
iers
prop
erly
bef
ore
the
sign
als
are
fed
into
the
cabl
e sy
stem
.
37
7.2.
5
SPE
CIA
L F
UN
CT
ION
S 6.
0
Al
Thi
s se
ctio
n is
par
ticul
arly
impo
rtan
t in
that
it p
oint
sou
t
som
e sp
ecia
lca
pabi
litie
s w
hich
are
ava
ilabl
e.Su
bsec
tions
6.1
,6.
2, a
nd 6
.3 d
eal w
ithm
etho
ds o
f pr
ovid
ing
for
dist
ribu
tion
ofop
en-c
ircu
it an
d/or
clo
sed-
circ
uit
and/
or 2
500
MH
z si
gnal
s on
the
sam
e sy
stem
. Var
ious
supp
liers
hav
e th
eir
own
pref
erre
dw
ay o
f do
ing
the
job.
A k
ey to
you
r se
lect
ion
of m
etho
d is
the
ques
tion,
How
eas
ily d
oes
ate
ache
r ha
ve a
cces
s to
asi
gnal
?
If th
e sy
stem
is to
be
used
for
dist
ribu
tion
ofsc
hool
-ori
gina
ted
tele
cast
s, h
ere
is th
e pl
ace
tode
fine
loca
tions
and
oth
erfa
ctor
sre
lativ
e to
suc
h or
igin
atio
n th
at a
repe
rtin
ent.
Aga
in, t
he m
ore
info
rmat
ion
supp
lied,
the
bette
ran
d m
ore
com
petit
ive
the
pro-
posa
ls w
ill b
e.
EL
EC
TR
ON
IC E
QU
IPM
EN
T 7
.0In
this
spe
cifi
catio
n,pe
rfor
man
ce is
the
crite
rion
,an
d al
-
SPE
CIF
ICA
TIO
NS
thou
gh a
ll m
anuf
actu
rers
can
mee
tth
e pe
rfor
man
ce s
et f
orth
,th
ey w
ill e
ach
do it
a li
ttle
diff
eren
tly.
Subs
ectio
n 7.
2 is
mos
t im
port
ant,
asit
ensu
res
that
the
ampl
ifie
rus
ed w
ill b
e bi
g en
ough
to d
o th
ejo
b pr
oper
ly. T
he lo
ss f
acto
rsvs
. am
plif
ier
type
s as
liste
d he
re a
re g
ener
ally
acc
epte
dw
ithin
the
indu
stry
. Thr
ough
mea
sure
men
tof
actu
al lo
sses
as
oppo
sed
to e
stim
ated
loss
es,
the
cont
ract
or is
aga
inre
quir
ed to
pro
vide
a sy
stem
mee
ting
perf
orm
ance
as
spec
ifie
d, a
ndm
ista
kes
mad
ein
pre
limin
ary
plan
ning
beco
me
his
resp
onsi
bilit
y.T
his
also
prov
ides
ince
ntiv
e fo
r th
e co
ntra
ctor
to m
aint
ain
adeq
uate
supe
rvis
ion
on th
e jo
b so
that
wor
kmen
do
not t
ake
the
long
rout
e w
ith a
cab
le, a
lbei
tth
e ea
sy o
ne, t
hus
incr
easi
nglo
sses
thro
ugho
ut th
e sy
stem
. Sub
sect
ion
7.3
ensu
res
that
the
sign
als
at th
e he
ad-e
nd o
f th
e sy
stem
will
be
bala
nced
inre
latio
nshi
pto
eac
h ot
her
so th
atal
l rec
eive
rs a
ttach
ed to
the
cabl
e w
illbe
rec
eivi
ng q
ualit
y si
gnal
s. B
e su
reth
at y
ou s
uppl
y yo
ur c
on-
trac
tor
with
ful
l inf
orm
atio
n on
the
chan
nels
you
wis
h to
vie
w.
If y
ou a
re in
stal
ling
a 25
00 M
Hz
syst
em a
t the
sam
e tim
ebu
tun
der
a se
para
te c
ontr
act,
be s
ure
that
liai
son
exis
ts b
etw
een
the
cont
ract
or d
eliv
erin
g th
esi
gnal
and
the
one
dist
ribu
ting
the
sign
al.
38
Pow
er f
or s
ingl
e ch
anne
l am
plif
iers
will
be
prop
erly
regu
late
d.7.
2.6
The
am
plif
ier
supp
lied
mus
t ser
ve a
li ou
tlets
on
the
syst
em7.
2.7
with
out o
verl
oad
or d
isto
rtio
n.7.
3Pr
eam
plif
iers
, Rea
mpl
ifie
rs, a
nd P
ads
Nec
essa
ry p
ream
plif
iers
or
pads
will
be
used
to b
alan
ce th
e7.
3.1
inpu
t sig
nals
of
the
syst
em b
efor
e th
ey a
re f
ed in
to th
e he
ad-
end
ampl
ifie
rs.
Rea
mpl
ific
atio
n is
req
uire
d in
any
sys
tem
bei
ng p
rovi
ded
in7.
3.2
build
ing
addi
tions
whe
re e
xist
ing
build
ings
are
equ
ippe
d w
ithdi
stri
butio
n sy
stem
s, u
nles
s sp
ecif
ical
ly w
aive
d by
the
owne
r.
The
sig
nal s
ourc
e fo
r re
ampl
ific
atio
n m
ust b
e a
dire
ctio
nal
7.3.
3co
uple
r lo
cate
d in
the
syst
em h
ead-
end
or in
a f
eede
r ru
nnin
gfr
om th
e he
ad-e
nd b
ut p
rece
ding
any
oth
er ta
p.
The
sig
nal i
nput
to a
rea
mpl
ifie
r m
ust n
ot b
e le
ss th
an 3
dbm
.7.
3.4
The
inst
alla
tion
of ta
ps f
or r
eam
plif
icat
ion
will
not
deg
rade
7.3.
5se
rvic
e on
the
exis
ting
syst
em.
Syst
em s
plitt
ers
will
be
prov
ided
whe
re n
eces
sary
. VSW
R o
f7.
4sp
litte
rs s
hall
be le
ss th
an 1
.5 to
1.
tail
coax
ial c
able
sup
plie
d w
ill b
e th
at o
f a
know
n m
anuf
actu
rer
8.1
CO
AX
IAL
CA
BL
Ew
ith a
max
imum
atte
nuat
ion
of 2
.8 d
bm p
er 1
00 f
eet o
n ch
anne
l2
and
am
axim
umat
tenu
atio
n of
5.9
dbm
per
100
fee
t on
chan
-ne
113.
The
cab
le is
to b
e sw
eep-
test
ed a
nd e
vide
nce
of s
uch
test
pres
ente
d on
com
plet
ion
of th
e sy
stem
.
The
cab
le is
to b
e of
new
man
ufac
ture
with
non
cont
amin
atin
g8.
2ia
cket
mee
ting
TA
N s
peci
fica
tions
.
CO
AX
IAL
CA
BL
E8.
0A
lthou
gh p
erfo
rman
cesp
ecif
icat
ions
inpr
evio
usse
ctio
nsal
mos
t dic
tate
the
type
of
caL
ie to
be
used
in te
rms
of o
vera
llpe
rfor
man
ce, s
ectio
n 8
proc
eeds
a b
itfu
rthe
r an
d ag
ain
pro-
vide
s m
ore
info
rmat
ion
to b
idde
rs s
oth
ey w
ill b
e bi
ddin
g on
clea
rly
defi
ned
term
s. B
y sp
ecif
ying
swee
p-te
sted
cab
le, t
hebu
yer
is s
ure
that
the
cabl
e is
of
high
qual
ity a
nd c
apab
le o
fpr
oper
ly tr
ansm
ittin
g th
e te
levi
sion
sign
al. T
aggi
ng th
e eq
uip-
men
t end
s of
cab
le is
an
indi
spen
sabl
e he
lp w
hen
addi
tions
are
mad
e to
the
syst
ems
orm
aint
enan
ce o
n ca
ble
sect
ions
is
nece
ssar
y.
In s
choo
ls c
lose
to te
levi
sion
sign
als,
sig
nals
in th
e ai
r m
ayac
tual
ly in
terf
ere
with
the
sign
als
on th
eca
ble.
Dou
ble-
shie
lded
cabl
e he
lps
to p
reve
nt th
is a
nd s
houl
dbe
dem
ande
d in
loca
tions
whe
re lo
cal s
tatio
n fi
eld
stre
ngth
s ar
ehi
gh. T
he u
se o
f do
uble
-sh
ield
ed c
able
in in
dust
rial
sho
p ar
eas
orin
are
as w
here
oth
erin
terf
eren
ce is
pre
sent
will
als
o he
lp g
uara
ntee
bette
r vi
ewin
g.
Man
y ty
pes
of te
levi
sion
out
lets
are
avai
labl
e. T
hesc
hool
adm
inis
trat
or s
houl
d ch
oose
the
type
of
outle
tha
rdw
are
whi
ch w
ill b
est d
o th
e jo
b in
his
situ
atio
n.E
asy
acce
ss to
the
sign
al b
ycl
assr
oom
teac
hers
is a
mus
t. If
TV
rec
eive
rs a
re m
oved
from
roo
m to
roo
m,
push
-on
conn
ecto
rs a
re d
esir
ed.
11M
IMM
I111
1111
1111
11,
40
All
cabl
e at
tach
ed to
ele
ctro
nic
equi
pmen
t, ac
tive
or p
assi
ve,
is to
be
labe
led
to s
how
fun
ctio
n an
d lo
catio
n of
the
othe
ren
dof
the
cabl
e. A
ll la
bels
will
be
type
d, p
rint
ed in
bla
ck in
k, o
r
Im
ade
with
a s
uita
ble
labe
ling
devi
ce, a
nd s
ecur
ely
fast
ened
to.
the
cabl
e.
8.3
App
ropr
iate
fitt
ings
are
to b
e us
ed w
hen
it is
nec
essa
ry to
ex-
8.4
tend
a le
ngth
of
cabl
e. N
o sp
lice
is a
llow
ed w
ithin
a c
ondu
it.
Whe
re a
ppro
pria
te, b
idde
rs m
ay u
se d
oubl
e-sh
ield
ed c
able
. (Se
e8.
5su
bsec
tion
1.5;
als
o su
bsec
tion
5.16
.)
Rec
epta
cles
pro
vide
d fo
r co
nnec
tion
of te
levi
sion
rec
eive
rs a
re9.
1 T
HE
TE
LE
VIS
ION
RE
CE
PTA
CL
Eto
be
wal
l-m
ount
ed in
or
on s
tand
ard
elec
tric
al b
oxes
.
Surf
ace-
mou
nted
box
es p
rovi
ded
by th
e co
ntra
ctor
will
be
9.2
secu
red
with
no
less
than
two
suita
ble
anch
or d
evic
es.
Rec
epta
cles
will
pro
vide
75
ohm
acc
ess
to th
e di
stri
butio
n9.
3sy
stem
.
No
part
of
the
rece
ptac
le h
ardw
are
will
ext
end
beyo
nd th
e9.
4co
ver
plat
e w
hen
not i
n us
e.
Rec
epta
cles
usi
ng s
crew
or
scre
w-o
n ty
pe c
onne
ctio
ns a
re n
ot9.
5ac
cept
able
.
Rec
epta
cles
or
plug
s us
ing
the
cent
er w
ire
of th
e co
axia
l cab
le9.
6as
the
cent
er p
in o
f th
e co
nnec
ting
devi
ce a
re n
ot a
ccep
tabl
e.
The
plu
g w
ill b
e of
the
push
-on,
fri
ctio
n-he
ld ty
pe.
If te
levi
sion
rec
eive
rs a
re to
be
perm
anen
tly m
ount
ed in
the
clas
sroo
m a
nd p
erm
anen
tly a
ttach
ed to
the
syst
em, s
ubse
ctio
ns9.
5, 9
.6, a
nd 9
.7 a
bove
do
not a
pply
.
41
9.7
9.8
TH
E T
EL
EV
ISIO
N R
EC
EPT
AC
LE
9.0
The
re a
re m
any
type
s of
tele
visi
on r
ecep
tacl
es, e
ach
just
as s
uita
ble
as a
nyot
her
as f
ar a
s th
e te
levi
sion
sign
al is
con
-ce
rned
. The
spe
cifi
catio
ns li
sted
are
appl
icab
le in
a s
choo
lw
here
tele
visi
on s
ets
are
mov
edab
out t
o a
grea
t deg
ree.
Her
eag
ain,
that
whi
ch is
eas
iest
to u
sean
d re
quir
es m
inim
umm
aint
enan
ce is
bes
t.
Whe
re a
rec
epta
cle
is n
ear
the
floo
ran
d un
used
for
per
iods
of
the
day,
pro
trud
ing
port
ions
can
cut
an
ankl
e or
shr
ed a
nyl
onst
ocki
ng. S
crew
con
nect
ors,
alth
ough
not
eas
y fo
r so
me
teac
h-er
s to
man
age,
do h
ave
a sa
fety
adv
anta
ge in
that
they
do
not
prot
rude
. Qua
lity
conn
ecto
rs a
re a
good
inve
stm
ent i
n m
ini-
mum
mai
nten
ance
serv
ice.
Tak
e th
e ad
vice
of
your
supp
lier
or y
our
cons
ulta
nt,b
ut a
gain
be
sure
that
all
supp
liers
bid
ona
com
para
ble
item
.
DE
MO
NST
RA
TIO
N 1
0.0
OF
PER
FOR
MA
NC
EO
nce
the
syst
em is
com
plet
ed,
the
cont
ract
or s
houl
d be
abl
eto
dem
onst
rate
that
itdo
es in
deed
wor
k, a
nd w
ork
righ
t.T
his
shou
ld b
e de
mon
stra
ted
with
pro
p. r
inst
rum
ents
that
your
ser
vice
man
or
cons
ulta
nt c
an u
nder
stan
d. T
hede
mon
-st
ratio
n qu
ickl
y se
rves
to a
scer
tain
that
the
syst
em is
gen
er-
ally
in s
hape
, rea
dy f
or y
our
own
serv
icem
an to
insp
ect i
nde
tail.
Com
pari
ng r
ando
m r
eadi
ngs
here
with
thos
e re
quir
ed in
par
a-gr
aph
2.7.
4 m
ay n
egat
e th
e ne
cess
ityof
a c
ompl
ete
chec
k by
your
ser
vice
orga
niza
tion.
Exp
erie
nce
with
the
part
icul
ar c
on-
trac
tor,
on-
the-
job
supe
rvis
ion
by s
choo
l per
sonn
el, a
nd o
ther
fact
ors
may
als
o in
flue
nce
how
and
whe
n to
acc
ept t
he s
yste
m.
42
)
The
con
trac
tor
shal
l dem
onst
rate
com
plia
nce
to th
e sp
ecif
ica-
10.1
DE
MO
NST
RA
TIO
Ntio
n in
gen
eral
, pri
or to
a c
ompl
ete
chec
k by
the
owne
r's s
ervi
ceO
F PE
RFO
RM
AN
CE
orga
niza
tion
as f
ollo
ws:
A c
hann
el 1
3 te
levi
sion
sig
nal i
s to
be
inse
rted
into
the
syst
emhe
ad-e
nd a
mpl
ifie
r at
0 d
bm. T
his
sign
al w
ill n
ot b
e le
ss th
an0
dbm
or
mor
e th
an 2
0 db
m a
t any
out
let s
elec
ted
by th
e sp
eci-
fyin
g en
gine
er. (
See
subs
ectio
n 5.
13.)
10.1
.1
With
a c
hann
el 1
3 si
gnal
fee
ding
the
syst
em a
s in
10.
1.1,
10.1
.2an
d af
ter
sele
cted
out
lets
hav
e be
en c
heck
ed, t
he c
ontr
acto
ris
to d
emon
stra
te th
e re
serv
e ga
in c
apab
ility
of
the
ampl
ifie
r.(S
ee p
arag
raph
7.2
.1.)
Pict
ure
qual
ity f
rom
the
owne
r's c
lose
d-ci
rcui
t sou
rce,
if a
ny,
and/
or th
e of
f-th
e-ai
r si
gnal
s w
ill b
e ob
serv
ed o
n a
tele
visi
onre
ceiv
er (
colo
r, if
app
licab
le).
A c
ompa
riso
n of
obs
erve
d pi
c-tu
res
shou
ld e
xhib
it no
deg
rada
tion
(noi
se, d
isto
rtio
n, s
mea
r-in
g, g
host
ing,
cro
ss m
odul
atio
n, e
tc.)
of
qual
ity.
10.1
.3
Equ
ipm
ent f
or th
is d
emon
stra
tion
will
be
prov
ided
by
the
10.2
cont
ract
or.
Shou
ld s
uch
a de
mon
stra
tion
of p
erfo
rman
ce s
how
that
the
10.3
cont
ract
or h
as n
ot p
rope
rly
bala
nced
the
syst
em a
nd th
at p
ic-
ture
deg
rada
tion
is p
rese
nt o
r th
at r
eser
ve o
r ou
tput
gai
n is
not
as s
peci
fied
, a s
econ
d pe
rfor
man
ce d
emon
stra
tion
will
be
arra
nged
.
Shou
ld a
sec
ond
perf
orm
ance
dem
onst
ratio
n fa
il, th
e co
ntra
c-to
r ag
rees
to c
orre
ct th
e sy
stem
def
icie
ncie
s un
der
the
supe
r-vi
sion
of
the
owne
r's s
ervi
ce o
rgan
izat
ion
or c
onsu
ltant
. The
cont
ract
or f
urth
er a
gree
s to
pay
the
owne
r's s
ervi
ce o
rgan
iza-
tion
or c
onsu
ltant
thei
r us
ual f
ees
for
supe
rvis
ory
serv
ice.
43
10.4
Bib
liogr
aphy
Split
Pag
e H
andb
ook
of T
VD
istr
ibut
ion
Syst
ems
Jerr
old
Ele
ctro
nics
Cor
pora
tion
401
Wal
nut S
tree
tPh
ilade
lphi
a, P
a. 1
9105
MA
TV
Pla
nnin
g M
anua
lC
hann
el M
aste
r C
orpo
ratio
nM
AT
V S
yste
ms
Div
isio
nE
lienv
ille,
N.Y
.
UH
F/V
HF
Mas
ter
Ant
enna
Dis
trib
utio
n Sy
stem
Man
ual
Blo
nder
-Ton
gue
9 A
l lin
g St
reet
New
ark,
N.J
. 071
02
Eng
inee
r's G
uide
to S
peci
fica
tions
for
Mul
tiple
Tel
evis
ion
Dis
trib
utio
nSy
stem
s
Jack
Bea
ver,
Tec
hnic
al D
irec
tor
Jerr
old
Ele
ctro
nics
Cor
pora
tion
401
Wal
nut S
tree
tPh
ilade
lphi
a, P
a. 1
9105
Plan
ning
and
Ins
talli
ng M
aste
rA
nten
na T
elev
isio
n Sy
stem
s
Lon
Can
tor
John
F. R
ider
Pub
lishe
r In
c.N
ew Y
ork,
N.Y
.
44