CHAPTER XIIRADIO ACT OF 1912

MISCELLANEOUS RADIO INFORMATIONLIST OF BROADCASTING STATIONS IN UNITED

STATES AND CANADATIME SIGNALS

UNITED STATES AND POSSESSIONS

The stations listed below send time daily for five minutes, startingat five minutes before the time set opposite each station. Each tick ofa standard clock is transmitted as a dot, omitting the 29th second ofeach minute, the last five seconds of each of the first four minutes,and finally the last ten seconds of the last minute. A dash is sent atthe time given opposite the station.

11:55 A.M.9:55 P.M.V 20' 30' 40' 59'

OOOOOOO00000

56'OOOOOOO G OOOOOOOOOOO 000000000J0041.0000 OOOOOOOOOOOOOOOOOO 00000

57'.)00000400* OOOOOOOOOOOOOOOO 00000

58'

59'

'6000 OOOOOOOOOOOOOOOO 0000000000

00000000

12 NOON10 PM.amt0000 N.A A

R THIS DASH 3 DOTS

Station ( ave-Length Time

Annapolis, Md. NSS 17,000 Arc Noon, 10.00 P.M. 75thmeridian standard time.

Arlington, Va. NAA 2,650 Spark Noon, 10.00 P.M. 75thmeridian standard time.

Key West, Fla. NAR 1,500 Spark Noon, 75th meridianstandard time.

New Orleans, La.* NAT 1,000 Spark Noon, 75th meridianstandard time.

Darien, C. Z. NBA 10,110 Spark, 5.00 A.M.; 1.00 P.M.75th meridian standardtime.

Time signals not sent on Sundays and holidays.239

X40 RADIO FOR ALL

Station Call

Honolulu NPMCavite, Philippine Isl. NPO

Cavite, Philippine Isl. ....NPO

Pt. Arguello, Cal.* NPK

North Head, Wash. ....NPE

San Francisco, Cal. NPG

San Francisco, Cal. NPG

Great Lakes, Ill. NAJ

Eureka, Cal. NPW

Balboa, Panama NBA(undamped -Chopper)

Colon, Panama NAX

San Diego, Cal. NPL

San Diego, Cal. NPL

Pearl Harbor, T. H.

Pearl Harbor,- T. H NPM 600

Wave -Length Time

800 Arc from 28,55 to 24,00 GMT.952 Spark from 02,55 to 08,00 GMT

and from 13,55 to 14,00GMT.

5,000 Arc from 01,55 to 02,00 andfrom 14,55 to 15,00 GMT.

1,512 Spark Noon, 120th meridian,west, standard time.

2,800 Spark, Noon, 120th meridian,west, standard time.

2,400 Spark Noon, 120th meridian,west, standard time.

4,800 Arc Noon, 120th meridian,west, standard time.

1,512 Spark 11.00 A.M., 90th me-ridian standard time.

2,000 Spark Noon, 120th meridian,west, standard time.

7,000 Arc 5.00 A.M., 1.00 P.M., 75thmeridian standard time.

1,500 Spark 5.00 A.M., 1.00 P.M.,75th meridian standardtime.

2,400 Spark Noon, 120th meridian,west, standard time.

9,800 Arc Noon, 120th meridianstandard time.

NPM 11,200 Arc 180th meridian, meannoon.

Spark 180th meridian, meannoon.

SCHEDULE OF WEATHER REPORTSUNITED STATES AND POSSESSIONS

Name of Station

Arlington, Va.Key West, Fla.Point Isabel, Tex.Point Isabel, Tex.

Call Broadcasting Hour Wave -Letter (76th Meridian Time) LegthNAA 10.80 A.M., Noon, 10 P.M. 2650NAR 10 P.M. 1500

NAY 12 Midnight 2350

NAY Noon, 7 P.M. 2250

* Time signals not sent on Sundays and holidays.

Name of Station

Great Lakes, Ill.*San Juan, P. R.**

San Juan, P. R.

Portland, Me.Boston, Mass.New York, N. Y.Philadelphia, Pa.Baltimore, Md.Norfolk, Va.Charleston, S. C.,Savannah, Ga.Jacksonville, Fla.St. Augustine, Fla.Miami, Fla.St. Petersburg, Fla.Pensacola, Fla.New Orleans, La.Galveston, Tex.Alpena, Mich.

Buffalo, N. Y. N N ZCleveland, Ohio NRHChicago, III. NURDuluth, Minn. NUXGuantanamo, Cuba NAW

Port au Prince, Haiti ....NSC

St. Thomas, V. I. ...... NBB

St. Croix, V. I.

San Francisco, Cal. ......NPHNorth Head, Wash. NFESan Diego, Cal. NPL

RADIO ACT OF 1912 241

Call Broadcasting Hour Wave -Letter (75th Meridian Time) Length

NAJ Noon, 10 P.M. 1500NAU 10 A.M., 9 P.M., 600 Spark and

5250 C.W.NAU When issued and repeated at about

4 -hour intervals 2750NAB Noon, 8 P.M. 1620NAD 11. A.M., 5 P.M. 2250NAH 10.30 A.M., 5 P.M. 1832N A I 10.45 A.M., 5 P.M. 1948

N B Z 10.80 A.M., 4 P.M. 700NAM 10.45 A.M., 4 P.M., 8 P.M. 1851

NAO 10.30 A.M., 6 P.M. 2250NEV 11 A.M., 6 P.M. 1813

N F I 11 A.M., 6 P.M. 450NAP 11.80 A.M., 7 P.M. 1851

NGE 11.30 A.M., 6 P.M. 1620NGL 11.30 A.M., 7 P.M. 2700NAS 11.45 A.M., 6 P.M. 2250NAT 11 A.M., 5 P.M. 1832NKB 11.30 A. M., 6 P.M. 1818NSM 10.45 A.M., 11.45 A.M.,

4.45 P.M., 7.45 P.M. 120010.45 A.M., 4.45 P.M. 120011 A. M., 5.30 P.M. 108011 A.M., 5.30 P.M. 1200

10.45 A.M., 4.45 P.M. 2200When issued and repeated at

about 4 -hour intervals 2750When issued and repeated at

about 4 -hour intervals 2250When issued and repeated at

about 4 -hour intervals 1688NNI When issued and repeated at

about 4 -hour intervals 450Noon, 10 P.M., 120th Men. 950Noon, 10 P.M., 120th Mer. 950Noon, 10 P.M., 120th Mer. 950

* Distribution is made from this station from April 15th to De-cember 20th.

**Distribution is made from this station from June to November,inclusive.

16

Jat 4.i.AC,4r- 1.

t42 RADIO FOR ALLNOTE: Noon transmission for

storm warnings, and 10 A.M. andSan Juan are hurricane warnings.

All afternoon and evening trawith Portland, Maine, and endingor hurricane warnings and advices.

Arlington and Great Lakes arewhen " issued transmission " for

nsmission listed above, beginningwith St. Croix, V. I., are storm

ABBREVIATIONS USED IN WEATHER REPORTS

ATLANTIC COAST

Sydney, N. S.Nantucket, Mass.Breakwater, Delaware DBHatteras, N. C.Charleston, S. C.Key West, Fla.Pensacola, Fla.BermudaSt. Johns, N. F.New York, N. Y. NYLynchburg, Va LBCape Henry, Va CHAsheville, N. C. AVAtlanta, Ga ATJacksonville, Fla JATampa, Fla TAMobile, Ala. MOBurrwood, La. BWGalveston, Tex. GVBrownsville, Tex BVFort Worth, Tex. FWCorpus Chrgti, Tex. GVKingston, Jamaica KNTurks Island TIHavana, Cuba HAGuantanamo Bay GOSwan Island SISan Juan, P. R. SJSt. Thomas, Virgin Isis STBasseterre, St. Kitts BTRoseau, Dominican Republic RS

Bridgetown, Barbadoes BBSanto Domingo, Dominican

Republic SDPuerto Plata, Dominican

Republic SLCastries, St. Lucia LUWillemstadt, CuracaoPort of Spain, Trinidad PS

GREAT LAKES

Duluth, Minn. DUMarquette, Mich.Sault Ste. Marie, MichGreen Bay, Mich.Chicago, Ill. CHAlpena, Mich.Detroit, Mich.Cleveland, Ohio VBuffalo, N. Y.Grand Haven, Mich. GHFather Point, Can. FPMontreal, Canada MLSt. Louis, Mo. SLLittle Rock, Ark. LRNashville, Tenn. NVCincinnati, Ohio CN

PACIFIC COAST

Tatoosh, Wash.North Head, Wash. NHEureka, Cal.San Francisco, Cal. SFSan Diego, Cal. SD

RADIO ACT OF 1912

ARLINGTON WEATHER REPORT. 2,500 METERS N.A.A.

Sample Report: QSTdeNAA, USWB, So1081-To2261 DB0251-H 00844-C 01261-K 004410-P 01243.

EXPLANATION

QST - General callde - From

NAA - Arlington StationUSWB - U. S. Weather Bureau

S - Sydney, Nova Scotia"010" - 30.10 inches, Barometer

"8" - Wind Northwest"1" - Light air

T - Nantucket, R. I."022" - 30.22 inches, Barometer

"6" - Southwest wind"1" - Light air

DB - Delaware Breakwater80.20 inches, Barometer

"5" - South wind."1" - Light air

H - Cape Hatteras"008" - 30.08 inches, Barometer

"4" - Southeast wind"4" - Moderate breeze

C - Charleston, S. C."012" - 80.12 inches, Barometer

"6" - Southwest wind"1" - Light air

K - Key West, Fla."004" - 30.04 inches, Barometer

"4" - Southeast wind"10" - Whole gale.

P - Pensacola, Fla."012" - 30.12 inches, Barometer

"4" - Southeast wind"8" - Gentle breezes.

244 RADIO FOR ALL

IS E uFORT WIND INTENSITY SCALE

0 CALM1 Light Air 82 Light Breezes 188 Gentle Breezes 184 Moderate Breezes 235 Fresh Breezes 286 Strong Breezes 847 Moderate Gale 408 Fresh Gale 489 Strong Gale 56

10 Whole Gale 6511 Storm 7512 Hurricane 90

Statute Miles Per Hour

.0--8

Statute Miles per Hour :-1.15 Nautical-M.P.H.

U. S. STATIONS SENDING MARKET REPORTSCall Wave -Lengths

Name of Station Letters Call -Work Broadcasting Hours

Washington, D. C. WWX 3800 8850 7.80 and 8.00 P.M.Hazelhurst, N. Y. WWU 3800 8400Bellefonte, Pa. WWQ 8800 8450Cincinnati, Ohio KDQC 3800 8600 9.00 and 11.00 A.M.,12.00

8000 Noon, 7.30 and 8 P.M.St. Louis, Mo. KDEL 8800 8675 9.15, 11.80 A.M., 12.30,

3.80,8.15 and 8.45 P.M.

RADIO ACT OF 1912 245

Call Wave -LengthsName of Station Letters Call -Work Broadcasting Hours

Omaha, Neb. KDEF 2900 4167 9.00, 11.00 A.M., 12.00Noon, 2.00, 3.00, 5.30,8.00 and 8.30 P.M.

North Platte, Neb KDHM 2900 3400 9.30 A.M., 12.00 Noon,6.00 and 9.00 P.M.

Rock Springs, Wyo KDHN 2900 8200 9.00 A.M., 12.00 Noon,6.30,8.00 and 8.30 P.M.

Cheyenne, Wyo. KDEG 2900 3740

Salt Lake City, Utah. KDEH 2200 3600

Elko, Nevada KDEJ 2200 3400 8.30 A.M., 12.00 Noon,4.00 P.M.

Reno, Nevada. KDEK 2200 2800 9.00 A.M., and 1.00 P.M.

Stations are also now being installed at Bryan, Ohio, and IowaCity, Iowa.

The above stations are all 2 -KW Federal arc transmitters and arenot only used for furnishing communications to the Air Mail Service,but they are also utilized in broadcasting agricultural market reports,and weather reports. Broadcasts are now being transmitted fromthe stations as shown above at the hours listed.

PRESS SCHEDULES OF SPARK STATIONSWave -Length

Call Station Meters Time

NAA Washington, D. C. 2650 10 P.M., 75th meridianNAR Key West, Fla. 1500 10 P.M., 75th meridianNAX Colon, Panama 2400 10 P.M., 75th meridianNPG San Francisco, Cal. 600 1.15 A.M., local timeKHK Honolulu, Hawaii 600 11.30 P.M., local timeNAH New York, N. Y. 1500 9.00 P.M., 5 A.M., local

timeNPL San Diego, Cal. 2440

BZM St. Johns, N. F., 1500 7.30 A.M. (GMT)VCU Barrington Passage, N. F 1500 8.00 A.M. (GMT)BZL Demerara, British Guiana 1300 6.00 A.M. (GMT)BZN Falklands 4300 8.30 A.M. (GMT)BYZ Malta (Rinella) 2650 9.00 A.M., 7.00 P.M.

(GMT)OAZ San Cristobal, Peru 1500 2.00 A.M., 8.80 P.M.

(GMT)

Greenwich (England) mean time.

246

Call

RADIO FOR ALLWave Length

Station Meters Tune

BXY Hong Kong, China 2000 9.45 P.M. (GMT)BXW Singapore 2000 9.15 P.M. (GMT)BZE Matara, Ceylon 2000 8.45 P.M. (GMT)BZF Aden, British Somaliland 2000 7.30 P.M. (GMT)BZH Seychelles 2000 9.45 P.M. (GMT)BZG Mauritius 2000 10.30 P.M. (GMT)BZI Durban, South Africa 2000 3.15 P.M. (GMT)VMG Apia, Samoa 2000 11.30 A.M. (GMT)VLA Awanui 2000 7.15 A.M. (GMT)VLB Awarua, Australia 2000 10.45 A.M. (GMT)VID Darwin, Australia 850 6.30 P.M. (GMT)VKT Naura, Australia 2200 7.00 P.M. (GMT)VIP Perth, Australia 1500 4.30 P.M. (GMT)VJZ Rabaul, Australia 2900 6.00 P.M. (GMT)VIS Sydney, Australia 2000 3.30 P.M. (GMT)VIT Tounsville, Australia 1000 4.30 P.M. (GMT)VIF Woodlark Isl., Australia 1000 5.00 P.M. (GMT)UA Nantes, France 2400 3.30 A.M., 8.45

(GMT)FL Paris, France 2500 8.00 P.M. (GMT)YN Lyons, France 5000 8.00 A.M. (GMT)

P.M.

RADIO CODE ABBREVIATIONS

LIST OF ABBREVIATIONS USEDABBREVIA-

TION QUESTION

PRB Do you wish to communi-cate by means of the Inter-national Signal Code?...

QRA

QRBQRCQRDQRFQRGQRH

QRJ

QRKQRL

QRM

QRN

QROQRPQRQQRSQRTQRUQRVQRW

What ship or coast stationis that?

What is your distance?What is your true bearing?Where are you bound for?.Where are you bound from?What line do you belong to?What is your wave -length in

meters?How many words have you

to send?How do you receive me?Are you receiving badly?

Shall I send 20 . . . - .for adjustment?

Are you being interferedwith?

Are the atmosphericsstrong?

Shall I increase power?Shall I decrease power?Shall I send faster?Shall I send slower?Shall I stop sending?Have you anything for me?Are you ready?Are you busy?

QRX Shall I stand by5

IN RADIO CODE

ANSWER oa NOTICE

247

I wish to communicate by meansof the International SignalCode.

This isMy distance is....My true bearing is .. degrees.I am bound for ....I am bound fromI belong to the .... line.

My wave -length is .... meters.

I have .... words to send.I am receiving well.

I am receiving badly. Pleasesend 20 . . . - .

for adjustment.

I am being interfered with.

Atmospherics are very strongIncrease power.Decrease power.Send faster.Send slower.Stop sending.I have nothing for you.I am ready. All right now.I am busy (or: I am busy with

). Please do not interfere.Stand by. I will call you when

required.

%48 RADIO FOR ALL

ABBREVIA-

TION QuzaTioNQRY When will be my turn'QRZ Are my signals weak?QSA Are my signals strong?

Is my tone bad?jl Is my spark bad'

QSC Is my spacing bad?QSD What is your time?QSF Is transmission to be in al-

ternate order or in series?

QSG

QSH

QSJ What rate shall I collectfor

QSK Is the last radiogram can-celled?

QSL Did you get my receipt'QSM What is your true course?QSN Are you in communication

with land?

2

QSO Are you in communicationwith any ship or station;(or: with....)?

QSP Shall I inform .... that youare calling him?

QSQ Is calling me?QSR Will you forward the radio-

gram?QST Have you received the gen-

eral call?QSU Please call me when you

have finished (or: ato'clock)

ANSWER OR NOTICEYour turn will be No.....Your signals are weak.Your signals are strong.The tone is bad.The spark is bad.Your spacing is bad.My time is ....Transmission will be in alter-

nate order.

Transmission will be in seriesof 5 messages.

Transmission will be in seriesof 10 messages.

Collect

The last radiogram is cancelled.Please acknowledge.My true course is .. degrees.

I am not in communication withland.

I am in communication with.... (through ....)

Inform .... that I am callinghim.

You are being called by ....

I will forward the radiogram.

General call to all stations.

Will call when I have finished.

RADIO ACT OF 1912 949

ABBREVIA-

TION QtrESTION

QSV* Is public correspondencebeing handled?

QSW Shall I increase my sparkfrequency?

QSX Shall I decrease my sparkfrequency?

QSY Shall I send on a wave-length of ....meters?

QSZ

QTAQTB

QTC Have you anything for me?

QTE What is my true bearing?

QTF What is my position?

ANSWER OR NOTICE

Public correspondence is beinghandled. Please do notinterfere.

Increase your spark frequency.

Decrease your spark frequency.

Let us change to the wave-length of .. meters.

Send each word. twice. I havedifficulty in receiving you.

Repeat the last radiogram.Send initials of each word to

confirm check.I have .... msgs for you (or: I

have something for you.)Your true bearing is .... de-

grees from ....Your position is .... latitude,

....longitude.

* Public correspondence is any radio work, official or private,handled on commercial wave -lengths.

When an abbreviation is followed by a mark of interrogation, itrefers to the question indicated for that abbreviation.

CAPACITY OF CONDENSERS

To find the capacity of condensers use the following formula:

A X KC -

4 X 3.1416 X T X 900,000

C = Capacity in microfarads.A = Area in square centimeters of one set of plates or surface.K = Dielectric constant or specific inductive capacity of the

dielectric used. (Given under " Dielectric Constants.")T = Thickness of the dielectric between the plates, surfaces

measured in centimeters.

250 RADIO FOR ALL

FORMUL.CAPACITY.

Capacity of two plates:

C=2248 X K X A

T X 10°C is capacity in microfarads.K is dielectric constant. See table.A is area of plates in square inches.T is thickness of dielectric in inches.

Capacity of condensers in parallel:C = + C. + + C0 etc.

Capacity of condensers in series:

1 1 1 1 1-= -+ -+ -+ etc.C C1 C2 Ca C4

Capacity necessary for any transformer:

C_ KW X 102E2 X f

C is capacity in microfarads.KW is killowatts of power.

E is secondary voltage.f is frequency of spark discharge.

INDUCTANCE.

Inductance of single layer round coil (solenoid):

0.03948 X A2 X N2L - X K Value of "K"

Ratio ofLength

DiameterL = inductance in cm. 1/10 0.9588A = radius of coil 1/4 0.9016N = number of turns 1/2 0.8181b = length of coil 3/4 0.7478K = is a constant. See table. 1 0.6884

3/2 0.59502 0.52553 0.42924 0.36545 0.8198

RADIO ACT OF 1912 251

TABLE OF "L" IERIAL DIMENSIONSHeight Spacing Length Approx. Approx. Wave -Above No. of Between of Daylight Length with

Ground Strands Strands Strands Rec. Maximum Length(Feet) (Feet) (Feet) Range Aerial Given

(Miles) (Metres)

30 4 21/2 60-80 75-125 15140 4 21/2-3 80-90 100-150 16550 4-6 3 80-90 125-175 17875 4-6 3 80-100 150-300 240

WAVE -LENGTHS OF JERIALSTo calculate the approximate natural wave -length of an aerial,

the total length of the aerial in feet should be multiplied by thefactor 4.5. This gives the natural wave -length of the aerial in feet.This result may be divided by 3.28 to obtain the wave -lengthin meters.

Let us take, for example, a flat -top aerial with a length of 100 feet,connected to a lead-in wire at one end 100 feet long. Then 100 feetplus 100 feet gives 200 feet, and this multiplied by 4.5 gives 900 feetas the natural wave -length. Divided by 3.28, we have 274 meterswave -length.

If the above antenna happened to be connected "T" type, then theeffective radiating length of same would be

100 plus 100 = 150 feet.2

This value, multiplied by 4.5 gives 675 feet wave -length, which,divided by 3.28, gives 206 meters.

LOOP ANTENNAERange of 4 Ft. Square Loop Aerial

Turns Best Wave -Length Meters

3 250 200-3504 300 250-4006 350 300-800

10 600 350-100020 1200 900-1800

Range of 6 Ft. Square Loop Aerial2 220 180-4006 500 400-900

10 700 600-120020 1400 1000-2000

252 RADIO FOR ALL

Spacing for loopsSize of Loop in Feet SpadnginInches

8 1/8

4 1/46 7/168 9/16

10 3/412 15/16

WAVE -LENGTHS AND FREQUENCIESW.L.-Wave-Lengths in Meters.

Second.WL.

F.-Number of Oscillations per

F.

50 6,000,000100 3,000,000150 2,000,000200 1,500,000250 1,200,000300 1,000,000350 857,100400 750,000450 666,700500 60C,000550 545,400600 500,000700 428,600800 375,000900 833,300

1000 800,0001100 272,7301200 250,0001300 230,7601400 214,3801500 200,0001600 187,5001700 176,4601800 166,6701900 157,8902000 150,0002100 142,8502200 136,3602300 180,4302400 125,000

RADIO ACT OF 1912 253

W.L. F.

2500 120,000

2600 115,380

2700 111,110

2800 107,140

2900 103,450

3000 100,000

4000 75,000

5000 60,000

6000 50,000

7000 41,800

8000 37,500

9000 33,300

10000 30,000

11000 27,300

12000 25,000

13000 23,100

14000 21,400

15000 20,000

16000 18,750

Explanation: A wave of 350 meters will oscillate (vibrate backand forth) at the rate of 857,100 times in every second.

ENGLISH AND METRIC EQUIVALENTS1 metre = 39.37 inches1 cm. = 0.3937 inches1 foot = 30.48 ems. or 0.3048 meters.1 inch = 2.54 ems.1 meter = 100 cms.

DIELECTRIC CONSTANTS "K"Air 1. Mirror Glass 6.00Compressed Air 1.004 Common Glass 3.5

Crown Glass 6.96 Mica 8.0

Flint Glass 7.00 Paper 2.5Plate Glass 8.45 Paraffin 2.25

Mica, therefore, is the highest (best) insulator; it is eight timesbetter than air.

254 RADIO FOR ALL

ELECTRICAL UNITSRESISTANCE.

The unit of resistance is the ohm. Very large resistances, as forinstance, insulation resistances, are more conveniently reckoned inMeg -Ohms and very small resistances in Micro -ohms.

1 Meg -ohm = 106 ohms = 1 million ohms.1 Micro -ohm = 10-6 ohms = 1 millionth of an ohm.

CURRENT.

The unit of current is the ampere, small currents being reckonedin Milli -amperes or in Micro -amperes.

1 Milli -ampere = 10-3 ampere = 1 thousandth of an ampere.1 Micro -ampere = 10-6 ampere = 1 millionth of an ampere.

E LECI20- MOTIVE -FORCE.

The unit of E.M.F. is the volt, small potential differences beingreckoned in Milli -volts or in Micro -volts.

1 Milli -volt = 10-8 volts = 1 thousandth of a volt.1 Micro -volt = 10-6 volts = 1 millionth of a volt.

QUANTITY.The unit of quantity is the coulomb, which equals the quantity

of electricity conveyed by a current of one ampere flowing forone second.

ENERGY.

The unit of electrical energy is the joule.POWER.

The unit of power is the watt, large powers are best reckoned inKilo -watts and very small powers in Micro -watts.

1 Kilo -watt = 10' watts =_- 1 thousand watts.1 Micro -watt = 10-6 watt = 1 millionth of a watt.

746 watts = 1 H.P.CAPACITY.

The unit of capacity is the Farad, smaller units being the micro -farad and the centimeter.

1 Micro -farad = 10-° farads = 1 millionth of a farad.900,000 ems = 1 micro -farad.1 jar = 1,000 cms.1 Billi-farad = 900 cms.

INDUCTANCE.

The unit of inductance is the henry, smaller units being the milli-henry, the micro -henry and the centimeter.

1 Milli -henry = 10-' henry = 1 thousandth of a henry.1 Micro -henry = 10-6 henry = 1 millionth of a henry.1,000 cms. = 1 micro -henry.1 Coil = 25,000 cms.

C.

RADIO ACT OF 1912 256

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00WM.C.MM 0,00.00. .....,114 ?; 2: :g.; i Ez t2. 3. t g 6?,w': gi , -6 , -.'" ..`" -,-; c".5 ******** . * ''''''''''

-,.. .. .

..

S

g

A.49

§.

.5 . .0 00 w.f. al ,-.'A.

0---gw-iiiilavECtipi-.v2s*mgmzs..... ... ......,-....- .- -.... . or..0.4.0o..ogt-ggv5.0,.g00,0,00,4.0,00..,.. 0,- 00,00 worw,,,,mm,,,weoN '''''' COO coc000RR090RRRR0.-6gA

°Wv1

0

0Z

atgi

I§80-c"""4°2.1.7.=;14Iggigig2,742I2tUECT.

256 RADIO FOR ALL

FEET PER POUND OF INSULATED MAGNET WIRENumberB. &S. Single Double Single Double

Cotton Cotton Silk Silk Enameledtitmice20 311 298 819 812 820

21 389 370 403 889 404

22 488 461 503 493 509

28 612 584 638 631 642

24 762 745 800 779 810

25 957 903 1005 966 1019

26 1192 1118 1265 1202 1286

2'T 1488 1422 1590 1543 1620

28 1852 1759 1972 1917 2042

29 2375 2207 2570 2485 2570

30 2860 2584 3145 2909 8240

81 3800 2768 8943 8683 4082

32 4375 8737 4950 4654 5132

88 5890 4697 6180 5689 6445

34 6500 6168 7740 7111 8093

85 8050 6737 9600 8534 10197

86 9820 7877 12000 10039 12813

87 11860 9309 15000 10666 16110

88 14300 10636 18660 14222 20274

39 17130 11907 23150 16516 25519

40 21590 14222 28700 21888 82107

TABLE OF INSULATED MAGNET WIRESize Turns per Linear InchB. & S. Single Double Single Double

EnamededGauge Cotton Cotton Silk Silk

20 29 25 23 27 26

21 32 28 26 31 29

22 86 81 28 84 82

28 41 34 31 38 86

24 45 87 83 42 89

25 51 41 36 47 43

26 56 45 89 52 46

27 64 49 42 57 52

28 71 54 45 68 56

29 79 58 48 70 62

80 88 64 57 77 67

31 100 69 58 85 72

82 112 75 60 93 78

88 134 81 64 102 84

SizeB. & S.Gauge Enameled

RADIO ACT OF 191e

Turns per Linear InchSingle DoubleCotton Cotton

SingleSilk

257

DoubleSilk

34 140 87 68 112 9135 156 94 73 120 9736 173 101 78 130 10437 201 108 84 141 11038 225 115 89 151 11789 256 122 95 163 12840 288 130 102 178 129

DOUBLESize

B. & S.Gauge

COTTON -COVERED MAGNET WIRESize

No. Turns per B. & S. No. Turns perLinear Inch Gauge Linear Inch

0000 1.70 7 6.08000 2.00 8 6.80

00 2.32 9 7.640 2.65 10 8.511 2.99 11 9.562 0.36 12 10.603 3.80 13 11.884 4.28 14 13.105 4.88 15 14.686 5.44 16 16.35

TUNING COIL DATA

dalp7

Ao.51%;

26 2 in. 30 37 5828 2 in. 88 46 7324 Sin. 36 44 46

*26 8 in. 46 56 58*24 4 in. 48 59 46*22 5 in. 49 60 37*22 6 in. 58 70 37

20 Tin. 55 67 8020 8 In. 68 77 80

- mow., S.,t; -oo >.-kg

4 ts. .11 a:0o.Eg

411,

.. .... ....84 4 in. 70082 5 in. 80030 6 in. 100080 6 in. 1200.. ....

NOTE-To find the wave -length in meters of any tuning coil, mul-tiply its length in inches by length in meters per inch of winding.

* Indicates windings suitable for loose coupler primaries.17

268 RADIO FOR ALL

The data in this table were compiled for WINDINGS OF EN-AMELED WIRE ONLY.

Wave -length in meters in above table equals length of wire ontuning coil in meters multiplied by 4 (not for couplers).

VARIOCOUPLER VALUESWith a Secondary of 21/4 inches in diameter, shunted by .0005

m. f. Condenser, the following wave -lengths are obtainable:10 turns 80 to 220 meters20 turns 120 to 350 meters30 turns 150 to 420 meters40 turns 175 to 550 meters

THE RADIO LAW OF 1912An Act to regulate radio communication, approved August 18, 1912.

Be it enacted by the Senate and House of Representatives of theUnited States of America in Congress assembled, That a person, com-pany, or corporation within the jurisdiction of the United States shallnot use or operate any apparatus for radio communication as a meansof commercial intercourse among the several States or with foreignnations, or upon any vessel of the United States engaged in interstateor foreign commerce, or for the transmission of radiograms or signalsthe effect of which extends beyond the jurisdiction of the State orTerritory in which the same are made, or where interference would becaused thereby with the receipt of messages or signals from beyondthe jurisdiction of the said State or Territory, except under and inaccordance with a license, revocable for cause, in that behalf grantedby the Secretary of Commerce upon application therefor; but noth-ing in this Act shall be construed to apply to the transmission andexchange of radiograms or signals between points situated in the sameState: Provided, That the effect thereof shall not extend beyond thejurisdiction of the said State or interfere with the reception of radio-grams or signals from beyond said jurisdiction; and a license shallnot be required for the transmission or exchange of radiograms orsignals by or on behalf of the Government of the United States, butevery Government station on land or sea shall have special call lettersdesignated and published in the list of radio stations of the UnitedStates by the Department of Commerce. Any person, company orcorporation that shall use or operate any apparatus for radio com-munication in violation of this section, or knowingly aid or abet an-other person, company, or corporation in so doing, shall be deemedguilty of a misdemeanor, and on conviction thereof shall be punishedby a fine not exceeding five hundred dollars, and the apparatus or

RADIO ACT OF 1912 269

device so unlawfully used and operated may be adjudged forfeited tothe United States.

Sac. 2. That every such license shall be in such form as the Secre-tary of Commerce shall determine and shall contain the restrictions,pursuant to this Act, on and subject to which the license is granted;that every such license shall be issued only to citizens of the UnitedStates or Porto Rico or to a company incorporated under the lawsof some State or Territory or of the United States or Porto Rico, andshall specify the ownership and location of the station in which saidapparatus shall be used and other particulars for its identificationand to enable its range to be estimated; shall state the purpose of thestation, and, in case of a station in actual operation at the date ofpassage of this Act, shall contain the statement that satisfactory proofhas been furnished that it was actually operating on the above -mentioned date; shall state the wave -length or the wave -lengthsauthorized for use by the station for the prevention of interferenceand the, hours for which the station is licensed for work; and shallnot be construed to authorize the use of any apparatus for radiocommunication in any other station than that specified. Every suchlicense shall be subject to the regulations contained herein, and suchregulations as may be established from time to time by authority ofthis Act or subsequent Acts and treaties of the United States. Everylicense shall provide that the President of the United States in time ofwar or public peril or disaster may cause the closing of any stationfor radio communication and the removal therefrom of all radioapparatus, or may authorize the use or control of any such station orapparatus by any department of the Government, upon just com-pensation to the owners.

SEC. 3. That every such apparatus shall at all times while in useand operation as aforesaid be in charge or under the supervision ofa person or persons licensed for that purpose by the Secretary ofCommerce. Every person so licensed who in the operation of anyradio apparatus shall fail to observe and obey regulations containedin or made pursuant to this Act or subsequent Acts or treaties ofthe United States, or any one of them, or who shall fail to enforceobedience thereto by an unlicensed person while serving under hissupervision, in addition to the punishments and penalties herein pre-scribed, may suffer the suspension of the said license for a period tobe fixed by the Secretary of Commerce not exceeding one year. Itshall be unlawful to employ any unlicensed person or for any un-licensed person to serve in charge or in supervision of the use andoperation of such apparatus, and any person violating this provision

260 RADIO FOR ALL

shall be guilty of a misdemeanor, and on conviction thereof shall bepunished by a fine of not more than one hundred dollars or imprison-ment for not more than two months, or both, in the discretion ofthe court, for each and every such offense: Provided, That in case ofemergency the Secretary of Commerce may authorize a collector ofcustoms to issue a temporary permit, in lieu of a license, to theoperator on a vessel subject to the radio ship Act of June twenty-fourth, nineteen hundred and ten.

SEC. 4. That for the purpose of preventing or minimizing inter-ference with communication between stations in which such apparatusis operated, to facilitate radio communication, and to further theprompt receipt of distress signals, said private and commercialstations shall be subject to the regulations of this section. These regu-lations shall be enforced by the Secretary of Commerce through thecollectors of customs and other officers of the Government as otherregulations herein provided for.

The Secretary of Commerce may, in his discretion, waive the pro-visions of any or all of these regulations when no interference of thecharacter above mentioned can ensue.

The Secretary of Commerce may grant special temporary licensesto stations actually engaged in conducting experiments for the de-velopment of the science of radio communication, or the apparatuspertaining thereto, to carry on special tests, using any amount ofpower or any wave -lengths, at such hours and under such conditionsas will insure the least interference with the sending or receipt of com-mercial or Government radiograms, of distress signals and radio-grams, or with the work of other stations.

In these regulations the naval and military stations shall be under-stood to be stations on land.

REGULATIONSNORMAL WAVE -LENGTH

First. Every station shall be required to designate a certaindefinite wave -length as the normal sending and receiving wave -lengthof the station. This wave -length shall not exceed six hundred metersor it shall exceed one thousand six hundred meters. Every coastalstation open to general public service shall at all times be ready toreceive messages of such wave -lengths as are required by the Berlinconvention. Every ship station, except as hereinafter provided, andevery coast station open to general public service shall be prepared touse two sending wave -lengths, one of three hundred meters and oneof six hundred meters, as required by the international convention in

RADIO ACT OF 1912 261

force: Provided, That the Secretary of Commerce may, in his dis-cretion, change the limit of wave -length reservation made by regula-tions first and second to accord with any international agreement towhich the United States is a party.

OTHER WAVE -LENGTHS

Second. In addition to the normal sending wave -length all stations,except as provided hereinafter in these regulations, may use othersending wave -lengths: Provided, That they do not exceed six hundredmeters or that they do exceed one thousand six hundred meters:Provided further, That the character of the waves emitted conformsto the requirements of regulations third and fourth following.

USE OF A " PURE WAVE"

Third. At all stations if the sending apparatus, to be referred tohereinafter as the "transmitter," is of such a character that theenergy is radiated in two or more wave -lengths, more or less sharplydefined, as indicated by a sensitive wave meter, the energy in no oneof the lesser waves shall exceed ten per centum of that in the greatest.

USE OF A "SHARP WAVE"Fourth. At all stations the logarithmic decrement per complete

oscillation in the wave trains emitted by the transmitter shall notexceed two -tenths, except when sending distress signals or signalsand messages relating thereto.

USE OF " STANDARD DISTRESS WAVE "

Fifth. Every station on shipboard shall be prepared to send dis-tress calls on the normal wave -length designated by the internationalconvention in force, except on vessels of small tonnage unable to haveplants insuring that wave -length.

SIGNAL OF DISTRESS

Sixth. The distress call used shall be the international signal ofdistress . . . - - - . . .

USE OF " BROAD INTERFERING WAVE " FOR DISTRESS SIGNALS

Seventh. When sending distress signals, the transmitter of a stationon shipboard may be tuned in such a manner as to create a maximumof interference with a maximum of radiation.

DISTANCE REQUIREMENT FOR DISTRESS SIGNALS

Eighth. Every station on shipboard, wherever practicable, shall beprepared to send distress signals of the character specified in regu-lations fifth and sixth with sufficient power to enable them to be

RADIO FOR ALL

received by day over sea a distance of one hundred nautical miles bya shipboard station equipped with apparatus for both sending andreceiving equal in all essential particulars to that of the stationfirst mentioned.

" RIGHT OF WAY " FOR DISTRESS SIGNALS

' Ninth. All stations are required to give absolute priority to signalsand radiograms relating to ships in distress; to cease all sending onhearing a distress signal; and except when engaged in answering oraiding the ship in distress, to refrain from sending until all signals andradiograms relating thereto are completed.

REDUCED POWER FOR SHIPS NEAR A GOVERNMENT STATION

Tenth. No station on shipboard, when within fifteen nautical milesof a naval or military station, shall use a transformer input exceedingone kilowatt, nor, when within five nautical miles of such a station, atransformer input exceeding one-half kilowatt, except for sendingsignals of distress, or signals or radiograms relating thereto.

INTERCOMMUNICATION

Eleventh. Each shore station open to general public service be-tween the coast and vessels at sea shall be bound to exchange radio-grams with any similar shore station and with any ship station with-out distinction of the radio systems adopted by such stations,respectively, and each station on shipboard shall be bound to exchangeradiograms with any other station on shipboard without distinction ofthe radio systems adopted by each station, respectively.

It shall be the duty of each shore station, during the hours it isin operation, to listen in at intervals of not less than fifteen minutesand for a period not less than two minutes, with the receiver tuned toreceive messages of three hundred meter wave -lengths.

DIVISION OF TIME

Twelfth. At important seaports and at all other places where navalor military and private or commercial shore stations operate in suchclose proximity that interference with the work of naval and militarystations can not be avoided by the enforcement of the regulationscontained in the foregoing regulations concerning wave -lengths andcharacter of signals emitted, such private or commercial shore sta-tions as do interfere with the reception of signals by the naval andmilitary stations concerned shall not use their transmitters during thefirst fifteen minutes of each hour, local standard time. The Secretaryof Commerce may, on the recommendation of the department con-cerned, designate the station or stations which may be required toobserve this division of time.

RADIO ACT OF 1912 263

GOVERNMENT STATIONS TO OBSERVE DIVISION OF TIME

Thirteenth. The naval or military stations for which the above -mentioned division of time may be established shall transmit signalsor radiograms only during the first fifteen minutes of each hour, localstandard time, except in case of signals or radiograms relating tovessels in distress, as hereinbefore provided.

USE OF UNNECESSARY POWER

Fourteenth. In all circumstances, except in case of signals orradiograms relating to vessels in distress, all stations shall use theminimum amount of energy necessary to carry out any communi-cation desired.

GENERAL RESTRICTIONS ON PRIVATE STATIONS

Fifteenth. No private or commercial station not engaged in thetransaction of bona fide commercial business by radio communicationor in experimentation in connection with the development and manu-facture of radio apparatus for commercial purposes shall use a trans-mitting wave -length exceeding two hundred meters, or a transformerinput exceeding one kilowatt, except by special authority of theSecretary of Commerce contained in the license of the station:Provided, That the owner or operator of a station of the charactermentioned in this regulation shall not be liable for a violation of therequirements of the third or fourth regulations to the penalties of onehundred dollars or twenty-five dollars, respectively, provided in thissection unless the person maintaining or operating such station shallhave been notified in writing that the said transmitter has been found,upon tests conducted by the Government, to be so adjusted as toviolate the said third and fourth regulations, and opportunity has beengiven to said owner or operator to adjust said transmitter in con-formity with said regulations.

SPECIAL RESTRICTIONS IN VICINITIES OF GOVERNMENT STATIONS

Sixteenth. No station of the character mentioned in regulationfifteenth situated within five nautical miles of a naval or militarystation shall use a transmitting wave -length exceeding two hundredmeters or a transformer input exceeding one-half kilowatt.

SHIP STATIONS TO COMMUNICATE WITH NEAREST SHORE STATIONS

Seventeenth. In general, the shipboard stations shall transmit theirradiograms to the nearest shore station. A sender on board a vesselshall, however, have the right to designate the shore station throughwhich he desires to have his radiograms transmitted. If this can not

264 RADIO FOR ALL

be done, the wishes of the sender are to be complied with only if thetransmission can be effected without interfering with the service ofother stations.

LIMITATIONS FOR FUTURE INSTALLATIONS IN VICINITIES

OF GOVERNMENT STATIONS

Eighteenth. No station on shore not in actual operation at thedate of the passage of this Act shall be licensed for the transactionof commercial business by radio communication within fifteen nauti-cal miles of the following naval or military stations, to wit:Arlington, Virginia; Key West, Florida; San Juan, Porto Rico; NorthHead and Tatoosh Island, Washington; San Diego, California; andthose established or which may be established in Alaska and in theCanal Zone; and the head of the department having control of suchGovernment stations shall, so far as is consistent with the transactionof governmental business, arrange for the transmission and receiptof commercial radiograms under the provisions of the Berlin con-vention of nineteen hundred and six and future internationalconventions or treaties to which the United States may be a party, ateach of the stations above referred to, and shall fix the rates therefor,subject to control of such rates by Congress. At such stations andwherever and whenever shore stations open for general public businessbetween the coast and vessels at sea under the provisions of the Berlinconvention of nineteen hundred and six and future international con-ventions and treaties to which the United States may be a party shallnot be so established as to insure a constant service day and nightwithout interruption, and in all localities wherever or whenever suchservice shall not be maintained by a commercial shore station withinone hundred nautical miles of a naval radio station, the Secretary ofthe Navy shall, so far as is consistent with the transaction of govern-mental business, open naval radio stations to the general publicbusiness described above, and shall fix rates for such service, subjectto control of such rates by Congress. The receipts from such radio-grams shall be covered into the Treasury as miscellaneous receipts.

SECRECY OF MESSAGES

Nineteenth. No person or persons engaged in or having knowledgeof the operation of any station or stations, shall divulge or publishthe contents of any messages transmitted or received by such station,except to the person or persons to whom the same may be directed, ortheir authorized agent, or to another station employed to .forwardsuch message to its destination, unless legally required so to do by thecourt of competent jurisdiction or other competent authority. Any

RADIO ACT OF 1912 265

person guilty of divulging or publishing any message, except as hereinprovided, shall, on conviction thereof, be punished by a fine of notmore than two hundred and fifty dollars or imprisonment for a periodof not exceeding three months, or both fine and imprisonment, in thediscretion of the court.

PENALTIES

For violation of any of these regulations, subject to which a licenseunder sections one and two of this Act may be issued, the owner ofthe apparatus shall be liable to a penalty of one hundred dollars,which may be reduced or remitted by the Secretary of Commerce, andfor repeated violations of any of such regulations, the license maybe revoked.

For violation of any of these regulations, except as provided inregulation nineteenth, subject to which a license under section threeof this Act may be issued, the operator shall be subject to a penalty oftwenty-five dollars, which may be reduced or remitted by the Secre-tary of Commerce, and for repeated violations of any such regulations,the license shall be suspended or revoked.

SEc. 5. That every license granted under the provisions of this Actfor the operation or use of apparatus for radio communication shallprescribe that the operator thereof shall not willfully or maliciouslyinterfere with any other radio communication. Such interferenceshall be deemed a misdemeanor, and upon conviction thereof theowner or operator, or both, shall be punishable by a fine of not toexceed five hundred dollars or imprisonment for not to exceed oneyear, or both.

SEC. 6. That the expression " radio communication" as used inthis Act means any system of electrical communication by telegraphyor telephony without the aid of any wire connecting the points fromand at which the radiograms, signals, or other communications aresent or received.

SEC. 7. That a person, company, or corporation within the juris-diction of the United States shall not knowingly utter or transmit, orcause to be uttered or transmitted, any false or fraudulent distresssignal or call or false or fraudulent signal, call, or other radiogram ofany kind. The penalty for so uttering or transmitting a false orfraudulent distress signal or call shall be a fine of not more than twothousand five hundred dollars or imprisonment for not more thanfive years, or both, in the discretion of the court, for each and everysuch offense, and the penalty for so uttering or transmitting, orcausing to be uttered or transmitted, any other false or fraudulentsignal, call, or other radiogram shall be a fine of not more than one

266 RADIO FOR ALL

thousand dollars or imprisonment for not more than two years, orboth, in the discretion of the court, for each and every such offense.

Sac. 8. That a person, company, or corporation shall not use oroperate any apparatus for radio communication on a foreign ship interritorial waters of the United States otherwise than in accordancewith the provisions of sections four and seven of this Act and so muchof section five as imposes a penalty for interference. Save as afore-said, nothing in this Act shall apply to apparatus for radio communi-cation on any foreign ship.

Sac. 9. That the trial of any offense under this Act shall be in thedistrict in which it is committed, or if the offense is committed uponthe high seas or out of the jurisdiction of any particular State ordistrict the trial shall be in the district where the offender may befound or into which he shall be first brought.

Sac. 10. That this Act shall not apply to the Philippine Islands.Sec. 11. That this Act shall take effect and be in force on and

after four months from its passage.Approved, August 18, 1912.

U. S. BROADCASTING STATIONS(Corrected to September 1, 1922)

CallLetters Name

KDKA Westinghouse El. & Mfg.Co.

KDN Leo J. Meyberg Co.

KDPM

KDPTKDYLKDYMKDYN

KDYOKDYQKDYR

KDYSKDYUKDYVKDYWKDYXKDYT

Westinghouse Elec. &

Mfg. Co.Southern Electrical Co.Telegram Publishing Co.Savoy TheatreGreat Western Radio

Corp.Carlson & SimpsonOre. Inst. of TechnologyPasadena Star -News

Pub. CoThe TribuneHerald Publishing Co.Cope & Cornwell Co.Smith, Hughes & Co.Star BulletinRocky Mt. Radio Corp.

Wave -City State Length

East Pittsburgh Pa. 360San Francisco Calif.

360-485

ClevelandSan DiegoSalt Lake CitySan Diego

Redwood CitySan DiegoPortland

PasadenaGreat FallsKlamath FallsSalt Lake CityPhoenixHonoluluDenver

OhioCalif.UtahCalif.

Calif.Cal.Ore.

Calif.Mont.Ore.UtahAriz.HawaiiColo.

360860360360

360860485

860860860360960360860

RADIO ACT OF 191e t67Call

Letters Name

KDZA Arizona Daily StarKDZB Frank E. SiefertKDZD W. R. MitchellKDZE The Rhodes Co.KDZF Auto Club of Southern

Calif.KDZG Cyrus Pierce & Co.KDZH Fresno Evening HeraldKDZI Electric Supply Co.KDZJ Excelsior Radio Co.KDZK Nevada Mach. & Elec-

tric Co.KDZL Rocky Mt. Radio Corp.KDZM Hollingworth, E. H.KDZN Western Radio Corp.KDZP Newbery Electric Corp.KDZQ Motor GeneratorKDZR Bellingham Publishing

Co.KDZT Seattle Radio Assoc.

KDZW Claude W. GerdesKDZX Glad Tidings TabernacleKDZZ Kinney Bros. & Sipprell

KFAB Pacific Radiophone Co.KFAC Glendale Daily PressKFAD McArthur Bros. Mercan-

tile Co.KFAE State College of Wash-

ingtonKFAF Western Radio Corp.KFAJ University of Colorado

KFAN The Electric ShopKFAP Standard Publishing Co.KFAQ City of San JoseKFAR Studio Lighting Service

Co.KFAS Reno Motor Supply Co.KFAT S. T. DonohueKFAU High School

KFAV Cooke & Chapman

City

TucsonBakersfieldLos AngelesSeattle

Los AngelesSan FranciscoFresnoWenatcheeEugene

RenoOgdenCentraliaDenverLos AngelesDenver

BellinghamSeattleSan FranciscoSan FranciscoEverettPortlandGlendale

Phoenix

PullmanDenverBoulderMoscowButteSan Jose

HollywoodRenoEugeneBoise

Venice

Wave -State Length

Ariz.Calif.Calif.Wash.

Calif.Calif.Calif.Wash.Ore.

Nev.UtahWash.Colo.Calif.Colo.

360360360360

360360360360360

860360360360360360

Wash. 360Wash. 360Calif. 360Calif. 360Wash. 360Ore. 360Calif. 360

Ariz. 360

Wash.Colo.Colo.IdahoMont.Calif.

360360360360360360

Calif. 360Nevada 360Ore. 360Idaho

360-485Calif. 360

Q68 RADIO FOR ALLCall

Letters Name CityKFAW Register Radio Den

Radiophone Santa AnaKFAY W. J. Virgin Milling Co. Central PointKFBA Ramey & Bryant Radio

State

Calif.Ore.

%ea -Length

360860

co. Lewiston Idaho 360KFBB F. A. Buttrey & Co. Havre Mont. 360KFBC Normal Heights Sta., W.

K. Azbill San Diego Calif. 360KFBD Clarence V. Welch Han ford Calif. 360KFBE R. H. Horn, Cline's

Electric Shop San Luis Obispo Calif. 860KFBF Butte School of Teleg-

raphy Butte Mont. 860KFBG First Presbyterian

Church Tacoma Wash. 860KFBH Thomas Musical Co. Marshfield Ore. 860KFBJ Idaho Radio Supply Co. Boise Idaho 860KFBK Kimball -Upson Co. Sacramento Calif. 360KFBL Leese Bros. Everett Wash. 360KFBM Cook & Foster Astoria Ore. 860KFBN Borch Radio Corp. (portable) Calif. 360

KFC Northern Radio & Elec.Co. Seattle Wash. 860

KFDB John D. McKee San Francisco Calif. 360KFI Carl C. Anthony Los Angeles Calif. 360

KFU The Precision Shop Gridley Calif. 860KFV Foster Bradbury Radio

Store Yakima Wash. 860KFZ Doerr -Mitchell Elec. Co. Spokane Wash. 360KGB Wm. H. Mullins Elec. Co. Tacoma Wash. 860KGC Elec. Lighting & Elec. Co. Hollywood Calif. 860KGF Pomona Fixture & Wir-

ing Co. Pomona Calif. 360KGG Hallock & Watson Radio

Serv. Portland Ore. 860XGN Northwest Radio Mfg.

Co. Portland Ore. 860KGO Altadena Radio Labor-

atory Altadena Calif. 860KGU Marion H. Mulrony Honolulu Hawaii 360KGW Oregonian Publishing Co. Portland Ore. 360

CallLetters

KGY

KHD

KHJKHQKJCKJJKJQKJR

KJSKLBKLNKLPKLSKLXKLZKMCKMJ

KMOKNIKNJ

KNNKNRKNTKNVKNXKOAKOB

KOEKOG

KOJKONKOPKOQKPOKQI

RADIO ACT OF 1912 269

Name

St. Martin's College(Rev. S. Ruth)

C. F. Aldrich Marbleand Granite Co.

C. R. Kierulff & Co.Louis WasmerStandard Radio Co.The Radio ShopC. 0. GouldVincent I. Kraft

Bible Inst. of Los AngelesJ. J. Dunn & Co.Hotel Del MonteColin B. KennedyWarner BrothersTribune Publishing Co.Reynolds Radio Co.Lindsay Weatherill & Co.San Joaquin Lt. & Power

Co.Love Electric Co.T. W. SmithRoswell Public Service

Co.Bullock'sBeacon Light Co.North Coast Products Co.Radio Supply Co.Electric Ltg. Supply Co.Y.M.C.A.N.M. College Agr. & Mch.

ArtsSpokane ChronicleWestern Radio Electric

Co.University of NevadaHolzwasser, Inc.Detroit Police Dep'tModesto Evening NewsHale BrothersUniv. of California

City

Lacey

ColoradoSpringsLos AngelesSeattleLos AngelesSunnyvaleStocktonSeattle

Los AngelesPasadenaDel MonteLos AltosOaklandOaklandDenverRiedley

FresnoTacomaEureka

RoswellLos AngelesLos AngelesAberdeenLos AngelesLos AngelesDenver

Wave -State Length

Wash. 360

Colo. 485Calif. 860Wash. 860Calif. 360Calif. 360Calif. 360

Wash.360-485

Calif. 360Calif. 860Calif. 360Calif. 360Calif. 860Calif. 360Colo. 860Calif. 860

Calif.Wash.Calif.

860860860

N.M. 360-485Calif. 360Calif. 360Wash. 360Calif. 360Calif. 860Colo. 485

State College N.M. 360-485Spokane Wash 360

Los Angeles RenoSan DiegoDetroitModestoSan FranciscoBerkeley

Calif. 360Nev. 360Calif. 860Mich. 360Calif. 860Calif. 860Calif. 360

270 RADIO FOR ALLCall

Letters Name

KQL Arno H. KlugeKQP Blue Diamond Electric

Co.KQT Elee. Power & Appliance

Co.KQV Doubleday -Hill Elec. Co.

KQW Charles D. HerroldKQY Stubbs Electric Co.KRE Maxwell Electric Co.KSC 0. A. Hale & Co.KSD Post DispatchKSL The EmporiumKSS Prest & Dean Radio Co.

KTW First PresbyterianChurch

KUO Examiner Printing Co.

KUS City Dye Works & Laun-dry Co.

KUY Coast Radio Co.KVQ J. C. HobrechtKWG Portable Wireless Tele.

Co.KWH Los Angeles ExaminerKXD Herald Publishing Co.KXS Braun Corp.KYF Thearle Music Co.KYG Willard P. Hawley, Jr.KYI Alfred HarrellKYJ Leo J. Meyberg Co.

KYW Westinghouse Elec. &Mfg. Co.

KYY Radio Telephone ShopKZC Pub. Mkt. & Mkt. Stores

Co.KZI Irving S. Cooper

KZM Preston D. AllenKZN The Deseret NewsKZV Wenatchee Battery &

Motor Co.

City

Los Angeles

Hood River

YakimaPittsburghSan JosePortlandBerkeleySan JoseSt. LouisSan FranciscoLong Beach

SeattleSan Francisco

Los AngelesEl MonteSacramento

StocktonLos AngelesModestoLos AngelesSan DiegoPortlandBakersfieldLos Angeles

ChicagoSan Francisco

SeattleLos AngelesOaklandSalt Lake City

Wenatchee

Wave.State Length

Calif. 860

Ore. 860-485

Wash. 860Pa. 360Calif. 360Ore. 360Calif. 360Calif. 360Mo. 860Calif. 860Calif. 860

Wash. 360Calif.

860-485

Calif. 860Calif. 860Calif. 860

Calif. 860Calif. 860Calif. 360Calif. 860Calif. 860Ore. 860Calif. 860Calif.

360-485

III. 860-485Calif. 360

Wash. 360Calif. 360Calif.360-485Utah 360-485

Wash. 360

CallLetters

KZY

WAABWAACWAADWAAE

WAAF

WAAGWAAH

WAAJWAAKWAAL

WAAMWAANWAAOWAAPWA AQ

WAAR

WAASWAAVWAAWWAAXWAAY

WAAZ

WAHWBAAWBABWBADWBAEWBAFWBAGWBAHWBAJ

RADIO ACT

Name

AtL & Pac. Radio SupplyCo.

Times PicayuneTulane UniversityOhio Mechanics InstituteSt. Louis Chamber of

CommerceUnion Stock Yds. &

Transit Co.Elliott Electric Co.Commonwealth Electric

Co.Eastern Radio InstituteGimbel BrothersMinn. Tribune & A.

Beamish Co.I. R. Nelson Co.University of MissouriRadio Service Co.Otto W. TaylorNew England Motor

Sales Co.Groves Thornton Hdwe.

Co.Georgia Radio Co.Athens Radio Co.Omaha Grain ExchangeRadio Service Corp.Yahrling Rayner Music

Co.Hollister -Miller Motor

Co.Midland Refining Co.Purdue UniversityAndrew J. PotterSterling Electric Co.Bradley Polytechnic Inst.Fred M. MiddletonDiamond State Fibre Co.The Dayton Co.Marshall -Gerken Co.

OF 1912

City

OaklandNew OrleansNew OrleansCincinnati

St. Louis

ChicagoShreveport

St. PaulBostonMilwaukee

MinneapolisNewarkColumbiaCharlestownWichita

Greenwich

HuntingtonDecaturAthensOmahaCrafton

Youngstown

EmporiaEl DoradoWest LafayetteSyracuseMinneapolisPeoriaMoorestownBridgeportMinneapolisToledo

271

Wtt ye -State Length

Calif. 860La. 860La. 860Ohio 860

Mo. 360

IlL 860-485La. 860

Minn. 860Mass. 360Wis. 360

Minn. 860N.J. 360Mo. 360W. Va. 360Kans. 360

Conn. 360

W. Va. 360Ga. 360

Ohio 360Neb. 360Pa. 360

Ohio 360

Kans. 360Kans.860-485Ind. 360N.Y. 360Minn. 360Ill. 860-485N.J. 860Pa. 860-485Minn. 860Ohio 860

CallLetters

WBAMWBANWBAO

WBAPWBAQWBAU

WBAVWBAWWBAXWBAYWBAZ

WBLWBSWBTWBUWBZ

WCAB

WCACWCADWCAEWCAGWCAHWCAJWCAKWCALWCAMWCAN

WCAOWCAPWCAQ

WCARWCAS

WCAT

RADIO FOR ALL

Name

I. B. RennysonWireless Phone Corp.James Millikin 'Univer-

sityWortham-Carter Pub. Co.Myron L. HarmonRepublican Publishing

Co.Erner & HopkinsMarietta CollegeJohn H. Stenger, Jr.American Tel. & Tel. CoTimes Dispatch Pub. Co.T. & H. Radio Co.D. W. May, Inc.Southern Radio Corp.City of ChicagoWestinghouse Elec. &

Mfg. Co.Newberg News Ptg. &

Pub. Co.John Fink Jewelry Co.St. Lawrence UniversityKaufman & Baer Co.Daily States Pub. Co.Entrekin Electric Co.Nebraska Wesleyan Univ.Alfred P. DanielSt. Olaf CollegeVillanova CollegeSoutheastern Radio Tel.

Co.Sanders & Stayman Co.Central Radio ServiceTri-State Radio Mfg. &

Sup. Cp.Alamo Radio Electric Co.Wm. H. Dunwoody In-

dust. Inst.So. Dakota School of

Music

City

New OrleansPaterson

DecaturFort WorthSouth Bend

HamiltonColumbusMariettaWilkes-BarreNew YorkRichmondAnthonyNewarkCharlotteChicago

Springfield

NewbergFort SmithCantonPittsburghNew OrleansColumbusUniversity PlaceHoustonNorthfieldVillanova

JacksonvilleBaltimoreDecatur

DefianceSan Antonio

Minneapolis

Rapid City

Wave -State Length

La. 360N.J. 360

360Tex. 360-485Ind. 360

Ohio 360Ohio 360Ohio 860Pa. 860N.Y. 860Va. 860Kans. 360N.J. 360N.C. 860-485Ill. 360

Mass. 360

N. Y. 360Ark. 860Ohio 860Pa. 860La. 860Ohio 860Neb. 860-485Texas 360Minn. 360Pa. 360

Fla. 360Md. 860Ill. 860

Ohio 360Texas 860

Minn. 360

S. Dak. 485

RADIO ACT OF 1912 273

Call Wave -Letters Name City State Length

WCAU Philadelphia RadiophoneCo. Philadelphia Pa. 360

WCAV J. C. Dice Electric Co. Little Rock Ark. 360WCAW Q. Herald & Quincy

Elec. Sup. Co. Quincy Ill. 860WCAX University of Vermont Burlington Vt. 360WCAY Kesselman O'Driscoll Co. Milwaukee Wis. 860WCAZ R. E. Compton & Q. Whig

General Quincy Ill. 360WCE Findley Electric Co. Minneapolis Minn. 360WCJ A. C. Gilbert New Haven Conn. 860WCK Stix-Baer-Fuller St. Louis Mo. 860WCM University of Texas Austin Tex. 360-485WCN Clark University Worcester Mass.360-485WCX Detroit Free Press Detroit Mich.360-485

'"'"'"41 WD A A Ward Belmont School Nashville Tenn. 860WDAB H. C. Summers & Son Portsmouth Ohio 360WDAC Illinois Watch Co. Springfield Ill. 485WDAD Wm. L. Harrison Lindsborg Kans. 360WDAE Tampa Daily Times Tampa Fla. 360-485WDAF Kansas City Star Kansas City Mo. 360WDAG J. Lawrence Martin Amarillo Texas 360WDAH Mine & Smelter Supply

Co. El Paso Texas 360WDAI Hughes Electrical Corp. Syracuse N. Y. 360WDAJ Atlanta & West Point

R. R. Co. College Park Ga. 360WDAK The Courant Hartford Conn. 360WDAL Florida Times Union Jacksonville Fla. 360-485WDAN Glenwood Radio Corp. Shreveport La. 360

N........447DA0 Automotive Electric Co. Dallas Texas 360DAP Mid -West Radio Central,

Inc. Chicago III. 360WDAQ Hartman Riker Elec. &

Mch. Co. Brownsville Pa. 360P."%"%4WDAR Lit Bros. Philadelphia Pa. 360

WDAS Samuel A. Waite Worcester Mass. 360WDAT Delta Electric Co. Worcester Mass. 360WDAU Slocum & Kilburn New Bedford Mass. 360WDAV Muskogee Daily Phoenix Muskogee Okla. 860

18

274 RADIO FOR ALLCall Wave -

Letters Name City State Length

WDAW Georgia Rwy. & PowerCo. Atlanta Ga. 360-485

WDAX First National Bank Centerville Iowa 360WDAY Kenneth M. Hance Fargo N. Dak.

360-485WDM Church of the Covenant Washington D. C.WDT Ship Owners' Radio Ser-

vice New York N.Y. 860SWDV Yeiser, John 0., Jr. Omaha Neb. 360WDY Radio Corp. of America Roselle Park N.J. 360WDZ James L. Bush Tuscola Ill. 860

WEAA Fallian & Lathrop Flint Mich. 360WEAB Standard Radio Equip.

Co. Fort Dodge Iowa 360WEAC Baines Elec. Serv. Co. Terre Haute Ind. 360WEAD N. W. Kansas Radio

Supply Co. Atwood Kan. 360WEAR Virginia Polytechnic Inst. Blacksburg Va. 860WEAF Western Electric Co. New York N.Y. 360WEAG Nichols-Hineline-Bassett

Lab. Edgewood R.I. 860WEAH W. Bd. of Trd. & Lander

Radio Co. Wichita Kan. 860-485WEAI Cornell University Ithaca N.Y. 360WEAJ Univ. of So. Dakota Vermilion S. Dak. 360WEAK Julius B. Abercrombie St. Joseph Mo. 860WEAM Boro of North Plainfield No. Plainfield N.J. 360WEAN Shepard Co. Providence R.I. 360

"%%4WEA0 Ohio State University Columbus Ohio 360-485WEAP Mobile Radio Co. Mobile Ala. 360WEAQ Y.M.C.A. Berlin N.H. 360WEAR Baltimore Amer. & News

Pub. Co. Baltimore M d. 860WEAS Hecht Co. Washington D.C. 360WEAT John J. Fogarty Tampa Fla. 360WEAU Davidson Bros. Co. Sioux City Iowa 360WEAV Sheridan El. Serv. Co. Rushville Neb. 360

WEAW Arrow Radio Labora-tories Anderson Ind. 360

WEAX T. J. M. Daly Little Rock Ark. 360-485WEAY Will Horwitz, Jr. Houston Texas 860

RADIO ACT OF 191e V5Call Wave -

Letters Name City State Length

WEAZ Donald Redmond Waterloo Iowa 360WEB Benwood Co. St. Louis Mo. 360

WEH Midland Refining Co. Tulsa Okla. 360-485WEV Hurlburt-Still Electrical

Co. Houston Tex. 360-486WEW St. Louis University St. Louis Mo. 860-485WEY Cosradio Co. Wichita Kan. 360-485

WFAA A. H. Belo & Co. Dallas Tex. 360-485WFAB Carl F. Woese Syracuse N.Y. 860WFAC Superior Radio Co. Superior Wis. 360

WFAD Watson Weldon MotorSup. Co. Salina Kan. 360

WFAF H. C. Spratley Co. Poughkeepsie N.Y. 360WFAG Radio Engineering Lab-

oratory Waterford N.Y. 360WFAH Electric Supply Co. Port Arthur Texas 860WFAJ Hi Grade Wireless Instr.

Co. Asheville N.C. 860WFAK Domestic Electric Co. Brentwood Mo. 360WFAL Houston Chronicle Pub.

Co. Houston Tex. 360-485WFAM Times Pub. Co. St. Cloud Minn. 360WFAN Hutchinson Elec. Serv.

Co. Hutchinson Minn.360-485WFAP Brown's Business College Peoria Ill. 860WFAQ Mo. Wesleyan College &

Cameron Radio Co. Cameron Mo. 360WFAR Hall & Stubs Me. 360StamfordWFAS United Radio Corp. Ft. Wayne Ind. 860WFAT Daily Argus Leader Sioux Falls S. Dak. 360WFAU Edwin C. Lewis Boston Mass. 360WFAV University of Nebraska Lincoln Nebr.360-485WFAW Miami Daily Metropolis Miami Fla. 360WFAX Arthur L. Kent Binghamton N.Y. 360WFAY Daniels Radio Supply Co. Independence Kan. 360WFAZ South Carolina Radio

Shop Charleston S.C. 360r--s-WFI Strawbridge & Clothier Philadelphia Pa. 360-485

WFO Rike-Kumler Co. Dayton Ohio 860-485WGAB Q.R.V. Radio Co. Houston Texas 360

RADIO FOR ALLCall

Lettere Name

WGAC Orpheum Radio StoresCo.

WGAD Spanish American Schoolof Radio -Telegraphy

WGAF Goller Radio ServiceWGAH New Haven Electric Co.WGAJ W. H. GossWGAIC Macon Electric Co.WGAL Lancaster Elec. Supply

& Const. Co.WGAM Orangeburg Radio

Equipment Co.WGAN Cecil E. LloydWGAQ Glenwood Radio Corp.WGAR Southwest AmericanWGAS The Ray -Di -Co Organ-

izationWGAT American Legion, Dept.

of NebraskaWGAU Marcus G. LimbWGAW Ernest C. AlbrightWGAY North Western Radio Co.WGAZ The South Bend Tribune

WGF The Register & TribuneWGH Montgomery Light &

Power Co.WGI Amer. Radio Research

Corp.WGL Thomas F. J. HowlettWGR Federal Tel. & Tel. Co.WGU The FairWGV Interstate Electric Co.

4WGY General Electric Co.WHA University of Wisconsin

WHAA State University of IowaWHAB Clark W. Thompson

WHAC Cole Bros. Electric Co.WHAD Marquette UniversityWHAE Automotive Electric Ser-

vice Co.

City

Brooklyn

EnsenadaTulsaNew HavenShenandoahMacon

Lancaster

OrangeburgPensacolaShreveportFort Smith

Chicago

LincolnWoosterAltoonaMadisonSouth BendDes Moines

Montgomery

Medford HillsidePhiladelphiaBuffaloChicagoNew OrleansSchenectadyMadisonIowa CityGalveston

WaterlooMilwaukee

Sioux City

Wave -State Length

N.Y. 860

P.R. 860

Okla. 360Conn. 360

Iowa 360

Ga. 360

Pa. 360

S.C. 360Fla. 360La. 360Ark. 360

360

Neb. 360

Ohio 360Pa. 360Wis. 860Ind. 360Iowa 360-485

Ala. 360-485

Mass. 360

Pa. 360N.Y. 360-485

360

La. 860N.Y. 360Wis. 360-485Iowa 360Texas

860-485Iowa 360Wis. 360

Iowa 360

CallLetters

WHAFWHAGWHA H

WHAJWHA KWHAL

..%."`4WHAMWHANWHAOWHAPWHAQWHAR

F414%4 WHAS

WHAT

WHAV

WHAWWHAXWHAY

r******4WHAZ

WHBWHDWHKWHN

...%%1WHQWHUWHWWIAA

WIABWIACWIAD

RADIO ACT OF 191e 277

Name

Radio Electric Co.University of CincinnatiJohn T. GriffinRadio Equipment & Mfg.

Co.Bluefield Daily TelegraphRoberts Hdwe. Co.Phillips Jeffery & DerbyUniversity of RochesterSouthwestern Radio Co.Frederic A. HillDewey L. OtteSemmes Motor Co.Paramount Radio & Elec.

Co.Courier -Journal and

Louisville TimesY a 1 e Democrat - Yale

Telephone Co.Corinth Radio Supply

Co.Wilmington Elec.

Specialty Co., Inc.Pierce Electric Co.Holyoke Street Ry. Co.The Huntington PressRensselaer Polytechnic

Inst.Sweeney School Co.West Virginia UniversityWarren R. CoxRidgewood Times Ptg. &

Pub. Co.Rochester Times UnionWm. B. Duck Co.Stuart W. SeeleyWaupoca Civic & Com-

merce Assoc.Joslyn Automobile Co.Galveston TribuneOcean City Yacht Club

Wave -City State Length

Pittsburgh Pa. 360Cincinnati Ohio 360Joplin Mo. 360

Davenport Iowa 360Bluefield W. Va. 360Clarksburg W. Va. 360Lansing Mich. 360Rochester N.Y. 360Wichita Kansas 360Savannah Ga. 360Decatur Ill. 360Washington D.C. 360

Atlantic City N.J. 360

Louisville Ky. 360-485

Yale Okla. 360

Corinth Miss. 860

Wilmington Del. 360Tampa Fla. 360Holyoke Mass. 360Huntington Ind. 360-485

Troy N.Y. 360Kansas City Mo. 660-485Morgantown W. Va. 360Cleveland Ohio 360

Ridgewood N.Y. 860Rochester N.Y. 360-485Toledo Ohio 860East Lansing Mich. 485

Waupaca Wis. 360Rockford Ill. 360Galveston Tex. 360Ocean City N.J. 860

278 RADIO FOR ALLCall Wave -

Letters Name City State Length

WIAE Mrs. Robert E. Zimmer-man Vincon Iowa 360

WIAF Gustav A. De Cortin New Orleans La. 360WIAG Matthews Elec. Supply Co. Birmingham Ala. 360

WIAH Continental Radio &

Mfg. Co. Newton Iowa 360

WIAI Heer Stores Co. Springfield Mo. 360

WIAJ Fox River Valley RadioCo. Nunah Wis. 360

-^+WIAIC Daily Journal -Stockman Omaha Neb. 360-485WIAL Standard Service Co. Norwood Ohio 360

WIAN Chronicle & News Allentown Pa. 360

WIAO School of Eng. of Mil-waukee and WisconsinNews Milwaukee Wis. 360

WI &P Radio DevelopmentCorp. Springfield Mass. 360

WIAQ Chronicle Publishing Co. Marion Ind. 360

WIAR J. A. Rudy & Sons Paducah Ky. 360

WIAS Hawkeye &Home Electric Co. Burlington Iowa 360

WIAT Leon T. Noel Tarkio Mo. 360

WIAU American Trust & Sav-ings Bank Le Mars Iowa 360

WIAV New. York Radio Labor-atories Binghamton N.Y. 360

WIAW Saginaw Radio & Elec-tric Co. Saginaw Mich. 360

WIAX Capital Radio Co. (PaulC. Rohwer) Lincoln Neb. 360

WIAY Woodward & Lothrop Washington D.C. 360

WIAZ Electric Supply Sales Co. Miami Fla. 860

WIK K. & L. Electric Co. McKeesport Pa. 360

WIL Continental Elec. Sup. Co. Washington D.C. 360

WIP Gimbel Brothers Philadelphia Pa. 860

WIZ Cincinnati Radio Mfg.Co. Cincinnati Ohio 360-485

WJAB American Radio Co. Lincoln Neb. 860

WJAC Redell Co. Joplin Mo. 360

WJAD Jackson's Radio Engi-neering Laboratories Waco Texas 360

RADIO ACT OF 1912

CallLetters Name City State Length

279

Wave -

WJAE The Texas Radio Syndi-cate San Antonio Texas 360

WJAF Muncie Press -Smith Elec-tric Muncie Ind. 360

WJAG Norfolk Daily News Norfolk Neb. 860WJAH Central Park Amuse-

ment Co. Rockford 860WJAJ Y.M.C.A. Dayton Ohio 360WJAK White Radio Labora-

tory Stockdale Ohio 360WJAL Victor Radio Corp. Portland Me. 360WJAM D. M. Perham Cedar Rapids Iowa 360WJAN Peoria Star -Peoria Radio

Sales Co. Peoria Ill. 360WJAP Kelley -Duluth Co. Duluth Minn. 360

Capper Publication's Topeka Kansas 360JAR The Outlet Co.

(J. Samuels & Bro.) Providence R. I. 360WJAS Pittsburgh Radio Supply

Co. Pittsburgh Pa. 360WJAT Kelley-Vawter Jewelry

Co. Marshall Mo. 360WJAU Yankton College Yankton S. Dak. 360

Union Trust Co. Cleveland Ohio 360WJAZ Chicago Radio Labo-

ratory Chicago 360WJD Richard H. Howe Granville Ohio 860WJH White & Boyer Co. Washington D.C. 860WJK Service Radio Equip. Co. Toledo Ohio 860WJT Electric Equipment Co. Erie Pa. 860WJX DeForest Radio Tel. &

Tel. Co. New York N.Y. 360Westinghouse Elec. &

Mfg. Co. Newark N.J. 360WKAA H. F. Paap Cedar Rapids Iowa

200-360-485WKAC Star Publishing Co. Lincoln Neb. 360WKAD Chas. Looff East Providence R. I. 360WKAF W. S. Radio Supply Co. Wichita Falls Texas 360WKAG Edwin T. Bruce, M.D. Louisville Ky. 360WKAH Planet Radio Co. West Palm Beach Fla. 360

RADIO FOR ALLCall

Letters Name

WKAJ Fargo Plumbing andHeating Co.

WKAK Okfuskee County NewsWKAL Gray & GrayWKAM Hastings Daily TribuneWKAN Alabama Radio Mfg. Co.WKAP Dutee W. FlintWKAQ Radio Corp. of Porto

RicoWKAR Michigan Agricultural

CollegeWKAS L. E. Lines Music Co.WKAT Frankfort Morning

TimesWKAV Laconia Radio ClubWKAW Turner Cycle Co.WKAX Wm. A. MacFarlandWKAY Brenau CollegeWKAZ London's Music and

Jewelry Co.WKC Joseph M. Zamoiski Co.WKN Riechman Crosby Co.WKY Oklahoma Radio Shop

WLAB George F. GrossmanWLAC North Carolina State

CollegeWLAD Arvanette Radio Supply

Co.WLAF Johnson Radio Co.WLAH Samuel WoodworthWLAJ Waco Electrical Supply

Co.-__/WLB University of Minnesota

WLK Hamilton Mfg. Co.WLW Crosley Mfg. Co.

WMAD Atchinson County MailWMAH General Supply Co.WMAM Beaumont Radio De-

velopment Co.WMB Auburn Electrical Co.

City

FargoOkemahOrangeHastingsMontgomeryCranston

San Juan

East LansingSpringfield

FrankfortLaconiaBeloitBridgeportGainesville

Wilkes BarreBaltimoreMemphisOklahoma City

Carrollton

Raleigh

HastingsLincolnSyracuse

WacoMinneapolisIndianapolisCincinnatiRock PortLincoln

BeaumontAuburn

Wave -State Length

N. Dak. 360Okla. 360Texas 360Neb. 360Ala. 360R. I. 360

P. R. 360

Mich. 360Mo. 360

Ind. 360-485N. H. 360Wis. 360Conn. 360Ga. 360

Pa. 360Md. 360Tenn.360-485Okla.

360-485Mo. 360

N. C. 360

Neb. 360Neb. 360N. Y. 360

Texas 360Minn.360-485Ind. 360-485Ohio 360-485Mo. 360Neb. 360

Texas 360Me. 860

CallLetters

WMCWMHWMU

WNALWNJWNO

WOC

WOE

WOHWOI

WOK00

WOQWORWOS

WOU

WOZWPAWPEWPGWPIWPJWPLWPMWPOWRKWRLWRMWRPWRR

WRW

WSBWSL

RADIO ACT

Name

Columbia Radio Co.Precision Equipment Co.Doubleday -Hill Electric

Co.R. J. RockwellShotton Radio Mfg. Co.Wireless TeL Co. of Hud-

son CountyPalmer School of Chiro-

practicBuckeye Radio Service

Co.Hatfield Electric Co.Iowa State CollegePine Bluff Co.John WanamakerWestern Radio Co.L. Bamberger & Co.Mo. State Marketing

BureauMetropolitan Utilities

DistrictPalladium Printing Co.Fort Worth RecordCentral Radio Co.Nushawg Poultry FarmElectric Supply Co.St. Joseph's CollegeFergus Electric Co.Thomas J. WilliamsUnited Equipment Co.Doron Bros. Electric Co.Union CollegeUniversity of IllinoisFederal Inst. of Radiotel.D. Police & Fire Signal

Dept.Tarrytown Radio Re-

search Lab.Atlanta JournalJ. & M. Electric Co.

OF me es1

City

YoungstownCincinnati

WashingtonOmahaAlbany

Jersey City

Davenport

AkronIndianapolisHinesPine BluffPhiladelphiaKansas CityNewark

Wave -State Length

Ohio 360Ohio 360-485

D,C.

N.Y.

860360360

N.J. 360

Iowa 360-485

Ohio 360Ind. 360Iowa 360-485Ark. 360Pa. 360Mo. 860-485N.J. 360

Jefferson City Mo. 485

OmahaRichmondFt. WorthKansas CityNew LebanonClearfieldPhiladelphiaZanesvilleWashingtonMemphisHamiltonSchenectadyUrbanaCamden

Dallas

TarrytownAtlantaUtica

Neb. 360-485Ind. 360-485Tex. 860-485Mo. 860Ohio 860Pa. 360Pa. 360Ohio 360D.C. 360Tenn. 360Ohio 360N.Y. 360Ill. 360N.J. 360

Tex. 860-485

N.Y. 880Ga. 360-485N.Y. 360

282 RADIO FOR AILCall Wave -

Letters Name City State Length

WSN Ship Owners' Radio Ser-vice Norfolk Va. 860

WSV L. M. Hunter & G. L.Carrington Little Rock Ark. 360

WSX Erie Radio Co. Erie Pa. 360

WSY Alabama Power Co. Birmingham Ala. 860

WTG Kansas State Agric. Col-lege Manhattan Kans. 485

WTK Paris Radio Electric Co. Paris Texas 860

WTP George M. McBride Bay City Mich. 860WWB Daily News Printing Co. Canton Ohio 860

WWI Ford Motor Co. Dearborn Mich. 360

WWJ Detroit News Detroit Mich.860-485WWL Loyola University New Orleans La. 860

'4WWT McCarthy Bros. & Ford Buffalo N.Y. 860

WWZ John Wanamaker New York N.Y. 360

CANADIAN BROADCASTING STATIONSCall Wave -

Letters Name City Province Length

CFAC Calgary Daily Herald Calgary Alta.CFCA Toronto Daily Star Toronto Ont. 420

CFCB Daily Province Vancouver B.C. 440

CHCF Marconi W. Co. of Can.,Ltd. Montreal Que. 440

CHBC The Morning Albertan Calgary Alta. 410

CHCB Marconi Co. Toronto Ont. 440

CHVC Metropolitan Motors Co. Toronto Ont. 420

CJCA Edmonton Journal Edmonton Alta. 420

CJCB News Publishing Co.,Ltd. Nelson B.C. 420

CJCD T. Eaton Co. Toronto Ont. 410

CJCF Daily Record Kitchener Ont.CJGC London Free Press London Ont.CJNC Tribune Newspaper Co. Winnipeg Man. 420

CKAC La Presse Montreal Quebec 480

CKCE Can. Independent TeL Co. Toronto Ont. 450

CKCK Regina Leader Regina Sask. 420

8JZ Marconi W. Tel. Co. Toronto Ont. 1200

ABERDEEN

SUNNYVALE

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