spectrum - qsl.net 2016-03-185.pdfspectrum march 2016 vol. 53 no. 3 the official newsletter of the...

SPECTRUM http://www.qsl.net/zl1bq 1 Vol 53 March 2016

SPECTRUM March 2016 Vol. 53 No. 3

The Official Newsletter of the

Auckland VHF Group Inc.

Spectrum

People everywhere operating in the Field Day Contest, not just in sunny Auckland. This is ZL4AA on Mt Cargill, Dunedin

SPECTRUM is the official journal of the Auckland VHF Group Inc. Opinions expressed are

those of the authors and do not necessarily reflect club points of view.

The closing date for SPECTRUM articles is by the 1st of each month. Articles to be submit-

ted to the editor Peter ZL1UKG [email protected]

Office Name Call sign Home Work / Mobile E-mail

President Dave Dingley ZL1TIA 828 9394 [email protected]

Vice President Vacant

Secretary Marlene Matthews ZL1MYL 634 5130 [email protected]

Treasurer Doug Cooke ZL1TTE 846 6075 0274 978 121 [email protected]

Committee Vaughan Henderson ZL1VH 418 1071 021 844 804 [email protected]

Merv Thomas ZL1SK 828-7174 27-499-0262 [email protected] Peter Loveridge ZL1UKG 377 3398 [email protected] David Probine ZL1TND 630 8044 [email protected] AREC Section Leader Laurie Mathews ZL1ICU 634 5130 0274 817 463 [email protected] Deputy Section George Raffles ZL1TUX 626 6944 021 735 361 [email protected] ZL1BQ Trustee John Dunn ZL1JD 473 9514 021 731 907 [email protected] Repeater Trustee John Dunn ZL1JD 473 9514 021 731 907 [email protected] Klondyke Managers ZL1VH / ZL1BK 690 Manager Dennis Seymour ZL1UET 532 8666

850/670 Manager Vaughan Henderson ZL1VH 418 1071 021 844 804 [email protected]

ATV/Beacons

Spectrum Editor Peter Loveridge ZL1UKG 377 3398 [email protected]

Trading Table Vaughan Henderson ZL1VH [email protected]

Hon Auditor Raequel Probine 630 8044

Webmaster Terry Corin ZL1BPA [email protected]

Club Web Page http://www.qsl.net/zl1bq ATV Interest Group http://www.qsl.net/zl1qf/atvug/ATVusers.html ZL1VHD Dstar gateway administrator; Laurie ZL1ICU 634 5130 0274 817463 [email protected]

ZL1VHD Dstar gateway registration URL : http://zl1vhd.dstar.org.nz


Auckland VHF Group Inc.

Branch 66 NZART PO Box 10138, Dominion Rd, Auckland 1446

Clubrooms: 30 Hazel Ave, Mt Roskill

Club News and Net:

The combined Auckland VHF Group and Auckland Regional Branch News and Net are held on

146.625 MHz and 439.875 MHz at 8.15 pm each Sunday or after the ZL6A National Broadcast

on the last Sunday of the month.

Club meetings are held at the Clubrooms at Hazel Avenue, on the second Monday of each

month at 7.30 pm. For other details, listen to the News and Net each Sunday evening.

mailto:[email protected]















http://www.qsl.net/zl1bq

http://www.qsl.net/zl1qf/atvug/ATVusers.html

http://nz.mc961.mail.yahoo.com/mc/[email protected]

http://zl1vhd.dstar.org.nz



From the President

Greetings All,

I must admit first off, that I am not much of a writer, keyboards and the like tend to scare me. It is the "one finger" process that gets me. The brain overruns the fingers all the time. So, if anyone knows of a voice to text programme that is happy with Linux, Libre Office or Abiword, please let me know.

There are a number of thank you's I would like to make on your behalf, to those who have "retired" from office with the Group. Peter, Adam and Grant, thank you for your efforts.

Over the last weeks we have had some contact with Auckland Council regarding the ground lease for the club rooms, all of them appearing to be favourable. I am hoping that we will have more news for our April meeting.

Other short notice activities have appeared since our last General Meeting

Firstly, St Pats Parade Sunday 13th March. Contact Laurie ZL1ICU.

Then two others, both on March 19th with more details at the monthly meeting.

Working Bee at Klondike. Some elevated, more at ground level. Contact Vaughan ZL1VH.

“Meet the Neighbours” at the Clubrooms, is an Auckland Council sponsored event. Finan-cial support is available.

Contact Dave ZL1TIA

I am looking forward to seeing you at the Meeting and also hearing ideas for speakers and ac-tivities for the Club.

73

Dave ZL1TIA

Dave Dingley 07 March 2016


Auckland VHF Group Inc

Minutes of General Meeting and Special General Meeting held

Monday 8 February 2015

Present: 10 Members as per attendance book.

Apologies: ZL1JD, ZL1SK, ZL1EME, ZL1UEX

The meeting was chaired by Peter ZL1UKG. Peter opened the meeting saying that we would first have

a General Meeting to handle a number of items of general business, and this would be followed by the

Special General Meeting to amend various sections of our Constitution.

General Business:

1. Letter from NZART re pledge to assist with costs of Unitary Plan legal assistance. Spectrum

November 2015 Page 9 records the minutes of the VHF Group October 2015 General Meeting

where approval was given for the payment of $1000. ZL1TTE advised that he would need an

invoice for this amount from NZART before making payment.

2. Renewal of Clubrooms Lease: ZL1UKG reported on progress. Our application to renew was

lodged prior to the due date. Since then, he has received advice from Ron Johnson, Auckland

Council Community Lease Advisor, that he would like to visit the clubrooms. Peter advised

that in the absence of any feedback from the Committee, he had selected a date of Tuesday 16

February at 7.30pm for this visit and that other Branch members may wish to be present at that

time.

Arising from this visit was a need to tidy up inside the clubrooms. To help with this, there will

be a working bee on Saturday 13 February. Peter ZL1UKG will arrange the hire of a rubbish

skip. Ross ZL1EME will bring a trailer for scrap metal. It was noted that the current graffiti on

the clubrooms and container will need to be painted out.

3. Presentation to Puketapapa Community Board. The VHF Group has received and invitation to

address the next Board meeting, on Thursday 25 February. Those attending are Peter ZL1UKG,

Laurie ZL1ICU, Marlene ZL1MYL (WARO) and Doug ZL1TTE. The presentation will be on

more than we are just a club with a building.


4. From the AGM: Club has vacancies for President, Vice-President and Secretary. Acting chair-

man Peter ZL1UKG asked the meeting for nominations for the vacant positions.

ZL1ICU nominated Dave Dingley ZL1TIA for the position of President. Seconded ZL1TTE.

There being no further nominations, ZL1UKG moved / ZL1VH seconded that nominations be

closed. The motion that ZL1TIA be elected President was carried unanimously.

ZL1TIA advised that he would need to attend the meeting with the Council Community Advi-

sor.

Peter ZL1UKG then called for any nominations for the position of Vice-President and Secretary.

ZL1TIA proposed Peter ZL1UKG for the position of Immediate Past President. Some discus-

sion followed. Peter declined to accept the position as he plans to move out of central Auck-

land.

ZL1TIA nominated Marlene ZL1MYL for the position of Secretary. Seconded ZL1TTE. It was

noted that this would create a vacancy on the committee which would need to be filled. Moved

ZL1TIA, seconded ZL1UKG that nominations be closed. Carried. The motion that ZL1MYL

be elected Secretary was carried unanimously.

5. Klondyke Lighting Strike – on Monday 1 February “something” happened at the Klondyke

Road repeater site – most probably a near lightning strike and by Wednesday 3 Feb it was estab-

lished that neither battery charger was working and the D-Star Gateway was not working. All

other repeaters and link equipment at the site were working OK. New battery chargers were

ordered and Laurie ZL1ICU made a site visit to check the D-Star gateway computer. He was

also able to confirm that both battery chargers had no output. On Saturday 6 February Vaughan

ZL1VH visited the site and fitted two new 80A battery chargers. Both chargers ran at maximum

output (84A) for about three hours to bring the batteries back up to float voltage.

ZL1ICU reported on his activity to get the D-Star Gateway operational again. Contact was lost

with the gateway at 4 seconds past 2pm on Sunday 31 Jan. The UPS did not send a battery

backup status message. Also found that he could not ping the D-Star equipment. He contacted

Compass Communications who advised that did not have a problem. They had sent a technician

to site to reset their equipment – the 230V AC circuit breaker had tripped. While at site he

noted that one of the battery chargers had no 230V AC supply and on checking, found that the

circuit breaker had tripped but was not showing as being in the “off” position. Resetting the

circuit breaker restored power to the battery charger but there was still no output. The D-Star

Gateway computer power supply was working but the motherboard was dead. A new computer

supplied to restore the gateway.

ZL1VH gave an explanation re the cost of the new chargers, that he wanted to get two identical

models, that the existing 60A versions were out of stock, and in order to get the site back up and

running, had to purchase two of the next size up, the Victron Centaur 80A chargers.

One of the two original chargers was on display at the meeting and showed significant energy

between the negative output and ground had blown the wire leads off two 1nF 1000V disc ce-

ramic capacitors. Discussion followed on improving the protection using devices such as varis-

tors and gas discharge tubes with contributions from ZL1GSG and ZL1TOF. ZL1VH will in-

vestigate options and report back.


Discussion followed on the need to upgrade the old switchboard/circuit breaker panel at

Klondyke. The meeting agreed that this should be done as the existing panel is over 20 years

old and was not new when originally installed. ZL1VH will cost up a replacement and report

back. An electrical inspector will be needed to certify the repair work.

ZL1TTE moved, ZL1MYL seconded that ZL1VH be reimbursed for the purchase of the two

new battery chargers, total cost $3061.50. Carried. If repaired, we would use one of the old

battery chargers as a back-up at Klondyke. ZL1VH will attempt to repair when time permits.

6. The meeting received a visitor – Graham, a neighbour and member of the local tennis club. He

advised that they were about to renew their lease on the tennis court building and asked if we

were aware of the need to renew. Peter ZL1KG said yes, we were well on the way with our re-

newal and offered to help with any information we had.

The General Meeting closed at 2058.

Peter ZL1UKG then opened the Special General Meeting.Special General Meeting held Mon-

day 8 February 2016 at 2100.

Peter ZL1UKG introduced the Special General Meeting which was called to update the Auck-

land VHF Group Constitution. Specifically, the Constitution amendments were:

In Section 3(b) update the reference to the NZART Constitution Part 2.1 (c) (ii)

In Section 3(j) update Junior Member to be under the age of 18 years

In Section 10(c) add wording to allow the committee to pay the annual Insurance Pre-

mium in excess of the amount approved by the Annual General Meeting.

In Section 12(a) update the Treasurer’s duties to produce duly reviewed accounts to the

Annual General Meeting.

In Section 16(a) update the reference to the NZART Constitution Part 9.1 c, d.

Peter ZL1UKG explained that the updates to the VHF Group Constitution were to bring the ref-

erences into line with the current NZART Constitution which had been updated and various

paragraph references had been re-numbered. Moved ZL1TIA, Seconded ZL1TTE that items 1

and 5 to bring the NZART and VHF Group constitutions into line be approved. Carried.

Item 2 – Age of Junior Member. Peter ZL1UKG introduced this - Our current constitution has

this set at 15 years. It was felt that making this 18 years of age could encourage younger mem-

bers to join the club. Some discussion followed. Moved ZL1UKG, seconded ZL1TIA that we

make the age for a Junior Member 18 years. Carried.


Item 4 – update the Treasurer’s duties to produce duly reviewed accounts instead of the current

“duly audited” accounts. ZL1UKG explained that this was being introduced due to changes in

the audit procedure introduced by the New Zealand Society of Accountants. An “audit” now

required a much more stringent process with associated costs. A review is a lesser process and

better suits our type of organisation. Peter ZL1UKG noted that there was another clause in our

Constitution which also needed to be amended in conjunction with this – clause 5(e) also calls

for an audited financial statement. The meeting agreed that this would need to be amended at a

later date and could not be done at this Special General Meeting as our members had not re-

ceived that required notice.

“Moved ZL1TIA, Seconded ZL1UKG that Clause 12(a) of the VHF Group constitution be

amended to read ‘duly reviewed’.” Carried.

Item 3 – special approval to pay the annual insurance premium. Discussion on the need for this

followed the introduction of this item. After explanations from ZL1UKG and ZL1VH, the

meeting agreed to add the following sentence to paragraph 10(c) of the constitution:

“An exception to the ratification by a General Meeting is made for the payment of the annual

insurance premium”. Moved ZL1UKG, Seconded ZL1VH, Carried.

The Special General Meeting closed at 2124. This was followed by a supper provided by

Marlene ZL1MYL.

E&OE

ZL1VH

From the Editor :

I apologise for the lack of photos in this issue of Spectrum.

It has taken hours to learn how to fit spreadsheets for example into a Spectrum page. There weren't many photos sent to me and the time available has pre-vented me from chasing through my collection or the Internet to illustrate this issue.


Spectrum Notices

Klondyke Working Bee

Saturday 19 March, 0930 onwards on site.

If you can help, and need transport, please let Vaughan ZL1VH know.

Planned work includes tower maintenance, checking antennas and feedlines.

At ground level we can use a weed eater or two to tidy up around the building.

Check batteries, tidy up inside.

If you just want to come and have a look – all welcome.

73

Vaughan ZL1VH

VHF Super Conference

For VHF-UHF-Microwave and Weak Signal Enthusiasts the first ever VHF

“Super Conference” will be held at the Holiday Inn Washington-Dulles Interna-

tional Airport, Sterling, Virginia. April 14-17, 2016. If there ever was just One

VHF Conference to go to – This Is IT!

The Southeastern VHF Society (SVHFS), North East Weak Signal Group

(NEWS) and Mt. Airy VHF Radio Club (Pack Rats) have come together to spon-

sor this VHF “Super Conference”. It is being hosted by the Grid Pirates Contest

Group(K8GP) and Directive Systems and Engineering. For further information

and to register for the conference go to http://vhfsuperconference.com/

73

Vaughan


Results of the 2016 VHF DX Weekend – 6/7 February VHF-UHF-SHF-EHF Contests, as administered by the Auckland VHF Group Inc; on behalf of all VHF groups, including all New Zealand radio amateurs and supported by NZART. Overall Winner Station Points

ZL4AA 2881 * ZL3RC 2091 ZL2BRG 1337 ZL1GSG 896 ZL3ADT 825 ZL2BKC 698 ZL3TKI 412 ZL3DC 160

Check log: ZL1TBG ZL1TPH Top Home Station winner

ZL3RC 2091 * ZL3ADT 825 ZL3TKI 412 ZL3DC 160

Band winner Station Points 6 m (50 MHz) ZL4AA 278 * ZL3RC 136 ZL3ADT 86

Band winner Station Points 2 m (144 MHz) ZL4AA 1129 * ZL2BRG 1001

ZL3RC 605 ZL2BKC 592 ZL3ADT 375 ZL1GSG 366 ZL3TKI 311 ZL3DC 160

Band winner Station Points 70 cm (432 MHz) ZL4AA 506 * ZL3ADT 289

ZL1GSG 233 ZL2BRG 224 ZL3TKI 90

ZL2BKC 74 Band winner Station Points 23 cm (1296 MHz) ZL3RC 1350 *

ZL4AA 968 ZL1GSG 297


ZL2BRG 112 ZL3ADT 73 ZL2BKC 32 ZL3TKI 11

Greatest DX Station Distance 6 m ZL4AA-ZL1BRL 1059 km 2 m ZL2BRG-ZL1IU 660 km 70 cm ZL2BRG-ZL1GSG 469 km 23 cm ZL2BRG-ZL3RC 346 km Certificate * Active Stations (31 in total)

ZL1AKW ZL1AVO ZL1AVZ ZL1BHD ZL1BRL ZL1GSG ZL1IU ZL1KB ZL1PO ZL1RCC ZL1TBG ZL1TPH

ZL2ALW ZL2BKC ZL2BRG ZL2FAE ZL2IT ZL2LTF

ZL3ADT ZL3CU ZL3DC ZL3MH ZL3NW ZL3OZ ZL3PX ZL3RC ZL3TKI

ZL4AA ZL4ACS ZL4DK ZL4LV ZL4OL Operator comments

ZL2WHO/b copied clearly on 1296 and 432 into CHCH at 505 km

West/East moving rain showers in central north island completely destroyed propagation be-tween Wellington and Auckland on Saturday

At the same time lift was observed from Wellington on Christchurch. This changed overnight and conditions returned

A lot of confusion leading up to the weekend

No stations heard from Blenheim

Great not having QRM from loud locals

Simon ZL2BRG up the top of Mt Climie Wellington was a big signal all over the country

Branch 30 ZL4AA Otago operated portable from Mount Cargill Dunedin

Weather cool with light winds

Mavis ZL1BHD with nice signal into north Auckland Station equipment

TS2000x 23 cm 10 watt 21 element yagi

Kenwood 9130 + 80 watt amp

2 x 6 elements LFA vertically mounted for 2 m

DB6NT 23 cm TRV 0.5 watt output into 1 metre dish with multiband feed

Homebrew transceiver and 17 element yagi 23 cm

ICOM 910 including 23 cm module

ICOM 9100 on 2 m and 23 cm

2 m Yaesu FT991 to HB LDMOS 1 k/W amp 9 element DZ7ZB at 14 metre

FT847 for 6 m with 5 element yagi

TR851 + homebrew amp and 5 element yagi

6 m Yaesu FT991 to HB LDMOS power amp 6 element DK7ZB at 12 metres

23 cm Yaesu 847 DEMI transverter with 300 watt XRF286 amp to 48 element loop yagi


VHF DX weekend Contest report I’m sure the mainland of New Zealand saw better weather and tropo conditions during the contest compared to the rest of the country. One noteworthy spot on the VK-Logger was with Mark ZL3TKI from CHCH hearing the ZL2WHO/b 1296.271 MHz beacon from Waipuna at 505 km. The path distance indicated enhanced tropospheric ducting. Up in the far north the weather and light rain was blowing from the east and not pleasant. Despite that Nick ZL1IU worked Simon ZL2BRG at Mount Climie at 660 km. Wayne ZL2BKC operated portable from Grenada Rise and Hawkins Hill and Simon ZL2FAE ventured out in the field and tested the radio path into the south Island. Two contacts of note were with Simon ZL2BRG to Greq ZL1GSG on 70 cm at 469 km (Wellington to Auckland) and Simon ZL2BRG to Roger ZL3RC at 345 km on 23 cm (Wellington to Christchurch). We thank those Wellington stations for activating high hills around the Wellington region. Wellington is mid path central New Zealand and this gives excellent coverage to both the north and south. From the far south David ZL4DK and Adam ZL4ASC teamed together and operated Otago Branch 30 for NZART, ZL4AA, from Mount Cargill Dunedin. They easily worked into the flats of Christchurch on 70 and 23 cm and further north on lower bands. On a final note Ken ZL3OZ operated portable from Mount Horrible and by looking at logs also operated mobile from different locations. No station needs to be fixed to one particular location and this is en-couraged. An added feature; A suggestion was received from a ZL2 operator from the Wellington region that it would be good to list the “Top Home Stations” in the results which will highlight that you can do well if operating all periods of the contest from home. From the hill topping perspective home stations play an integral part, without home stations we won’t have much of a contest. I would have to agree. This has been included and will be presented in future results. Thanks to all those that participated and enjoyed the contest weekend! Stephen Hayman - ZL1TPH

The rules for VHF-UHF-SHF-EHF Contests, as administered by the Auckland VHF Group; on behalf of all VHF groups are available on the NZART website: http://www.nzart.org.nz/activities/contest-rules/rules-vhf-and-above/ All contest logs should be sent, to arrive within two weeks, to: [email protected] Or by mail to: Contest Manager, PO Box 10138, Dominion Road, Auckland 1446. 21 February 2016


Surplus parabolic dish clearance Auckland VHF Group, Inc.

The Auckland VHF Group had an opportunity to assist a company that was about to write off some old stock that had never been used in the field. The dishes were mostly made by RFS of France and have size SU2 corresponding to a nominal diameter of 0.6 m. Rim to rim it is 0.75 diameter. Some of the dishes have feeds but they are not on Amateur bands. Weight is of the order of 8 – 12 kg. The awkward shape makes it desirable to pick them up from the club-rooms. This size is ideal for 6 cm and 3 cm bands and acceptable for 9 cm. F/d is not specified for these dishes but measurement to the centre of the dipole of a “splash plate” feed is approx 19.6 cm above the surface (SU2 35AN). Where there is an existing feed the position can be recorded. Mounting hardware to a pole is available for several of the dishes for pointing in fixed directions as point to point links. The plate which mounts the feeds could be modified to support a feed built to match the dish or a new circular plate could be cut or turned from sheet aluminium if starting from scratch. The asking price is NZ$ 50 each. The SU2 35AN dish has a feed for 3.4 – 3.6 GHz with an N connector and should be usable at 9 cm (3.3 – 3.41 GHz). The price for this model is $60 each.

Contact Vaughan Henderson 09-4181071 or Peter Loveridge 09-3773398 for further information


Amateur Radio Emergency Communication.

Volunteers in radio communications.

Using our resources to help the community.

INFORMATION

The Auckland VHF Group has an active AREC section that works closely with Auckland City

Civil Defence. They provide advice, resources and manpower to assist in times of need. The

Auckland VHF Group clubrooms provide a backup system to complement the existing systems

maintained by Auckland City Council Civil Defence.

The AREC section is headed by Section Leader Laurie Mathews ZL1ICU.

From time to time the VHF Group has training sessions and exercises. Members also assist with

sports events, parades and Rally NZ.

For further information about AREC please see the NZART web site.

JOIN BRANCH 66 AREC

All members of the Auckland VHF Group are encouraged to join the AREC section. Your con-

tribution, large or small is appreciated by all involved.

For further information about joining branch 66 AREC contact the Section Leader or his Deputy.

AREC:

Section Leader; Laurie Mathews ZL1ICU 634 5130 0274 817 463 [email protected]

Deputy Section; George Raffles ZL1TUX 626 6944 021 735 361 [email protected]

*****



AUCKLAND VHF GROUP (INC)

SUPPORT THE EFFORTS OF THE VHF GROUP THROUGH YOUR

SUBSCRIPTION

SUBSCRIPTIONS FOR 2016

THE SUBS GO TOWARDS;

Maintenance and on-going improvements to beacons, repeaters and linking systems for

the national system, including the Klondyke repeater site.

Provides on-time and free access to spectrum magazine as soon as it is available.

Provides facilities for good speakers and lecturers at our general meetings.

Discounted access to our trading table goodies.

Access to test equipment and technical help when needed.

FULL MEMBERSHIP $45.00

ASSOCIATE MEMBERSHIP $40.00

FAMILY MEMBERSHIP ADDITIONAL $10:00

SEE ATTACHED MEMBERSHIP RENEWAL FORM (next page)

REMEMBER TO KEEP US INFORMED OF YOUR INTERNET ADDRESS!

OTHERWISE WE CANNOT SEND YOU SPECTRUM!




NAME Mr/Mrs/Miss/Ms Christian or

given Surname

Mr

Address

Phone: (home)

Phone: (work)

Phone (Cell)

Email

Occupation: Callsign

NZART Member Branch assigned

AREC Member Branch assigned

Category To pay

Membership Full $45:00 $

New/Renewal/Change Associate $40:00 $

Receipt # Family Add $10:00 $

Donations Auckland ATV $

Auckland/Klondyke $

Brynderwyn $

Data/D-Star $

IRLP $

Beacon/Repeater/Links/ATV Licences $

Other $

Total $

Payment

Circle one --> Cash Cheque Internet deposit

Invoice/Statement re-

quired Please Advise Treasurer

Internet To account ASB 12-3020-0473626-00. Account name is: Auckland VHF Group

Inc. Include your Name/Callsign for us to track. Note: this form needs to be returned

to update records. FAX to 028 25544801 or Email [email protected]

Post The Treasurer, Auckland VHF Group Inc., PO Box 10138,

Dominion Road, Auckland 1446.

In Person Bring this form and payment to the next club meeting, 2nd Monday of the

month or to the Committee meeting last Monday of the month.



The Auckland VHF Group Inc Branch 66 NZART gratefully acknowledges the sponsorship of Branch 66 Beacons, Repeaters and

Fixed Links license fees and the Group’s repeater operations by the following

radio amateurs and NZART Branches for 2016

The Auckland VHF Group, Branch 66, would like to thank all those who came forward to

sponsor the licence fee for our Beacons, Repeaters or Fixed Links for the year 2016 or do-

nate towards the Group’s repeater Operations.

Merv ZL1SK – [email protected]

Repeater frequency Repeater Sponsorship Amount

and name location advised for 2016 paid

53.725 Repeater Klondyke Road Gwynne Rowe ZL1AAR $50.00

144.253 Beacon Nihotupu Under repair

145.625 Data Rptr Klondyke Road NON-operational

145.650 Dstar repeater Klondyke Road L/M Mathews ZL1ICU

/ZL1MYL $50.00

146.625 Repeater Klondyke Road L/M Mathews ZL1ICU

/ZL1MYL $50.00

146.700 Repeater Ruaotuwhenua

146.900 Repeater Mt Puketutu Radio

432.253 Beacon Nihotupu Under repair

438.175 Dstar repeater Klondyke Road L/M Mathews ZL1ICU

/ZL1MYL $50.00

438.500 Repeater North Head

439.850 Link Tx to Kaimai Klondyke Road

439.875 Ak Nat Sys Rptr Klondyke Road

439.900 Link Tx to Egmont Klondyke Road

439.950 Link Tx to Brynderwyn Klondyke Road

1291.9 Repeater 217 Glenfield Rd Vaughan Henderson $50.00

Total Sponsorship $250.00

NZART Inc: Branch donations

Franklin Amateur Radio Club. Br: 10 $200.00

Papakura Radio Club. Br: 65 $500.00

Donations $700.00

Prepared by Merv Thomas ZL1SK and current as at 5/3/2016



TRADING TABLE

Currently our Trading Table is only open on meeting nights. Opening on Saturdays may re-

sume later in the year so keep an eye out for announcements in Spectrum.

NEW – NEW - NEW

We have heaps of parts from dismantled commercial analog TV gear – transmitters, filters, cir-

culators, patch panels, power supplies, cabinets. Too much to list individually, so come along

to the clubrooms and have a look

And there’s

more….


Motorola Oncore VP GPS Receivers

The VP Oncore is Motorola’s original credit card-sized 8-channel GPS receiver. It

measures just 2” x 3 1/4” x 1/2”, has very low power requirements, and is well suited

for embedded applications. The VP Oncore has the capability of acting as a DGPS reference

station for greater position accuracy.

The units on offer have been in storage for some time, and the tinplate screen covers show some

signs of corrosion – see photo. Most of the units have a sticker attached saying “Prog NMEA”

and are likely to output data in NMEA V2.0 serial format.

Interface is via a 10-pin board header – see reference below for pinout details. Power supply is

5.0v +/-0.25V. Module requires an external active GPS antenna (5V power supplied by re-

ceiver module). GPS connector is a snap-on type OSX. Output data includes a 1PPS (one

pulse per second) output and TTL level Tx and Rx data lines.

More details can be found at : ftp://ftp.tapr.org/gps/motorola/oncore.eng.notes.pdf

$20.00 each – limited quantity.

ftp://ftp.tapr.org/gps/motorola/oncore.eng.notes.pdf


Other coaxial connectors available from the Trading Table:

Please note we have sold out of TNC connectors – these are no longer available.

BNC plugs 50 ohm for RG58 coax (solder/clamp type) $2.50 each

BNC plugs 50 ohm for RG58 coax (crimp on type) $2.50 each

BNC sockets 75 ohm – single hole mounting $1.50 each

N Type male solder on suit RG213 coax $4.00 each

N Type male right angle, suit RG213 coax $4.00 each

N Type male crimp on suit RG213 coax ** $3.00 each

N Type socket crimp on suit RG213 coax ** $3.00 each

N Type male right angle, solder on suit RG213 coax $4.00 each

N Type male sliver plated solder/clamp on suit RG58 coax $3.00 each

N Type male crimp on suit RG58 coax ** $2.50 each

N-Type adaptor Male to Male $3.00 each

Adaptor TNC Male to UHF Female $3.00 each

** Crimping service available for these at club meetings. Heatsinks for TO-220 transistors: These are Thermalloy THM-6071 top hat type with cutout.

20c each

N-Type connectors for LMR-400

Crimp-on only. $5.00 each


DATA MODES & UTILITIES CD

Version 12.09 has even more updates and new

programmes on this latest release. This is an ex-

cellent selection of software, notes, links to web

sites compiled by the late Doug ZL1AVY and this

latest edition has over 300 applications, references

and notes. These cover all digital modes, useful

software applications for your pc, contest logging

and e-qso programmes, radio interfaces, software

defined radio information, slow scan tv software,

test equipment utilities, satellite tracking software,

and much, much more. Still only $10.00

SMD Quartz Crystals: In addition to our selection of leaded holders, now have 6MHz and

20MHz crystals in SMD style housings:

6.0000 MHz HC49S SMD package 20pF load capacitance $1.00 each

20.0000 MHz HC49S SMD package P/No. 7D20000183BSAF25Q3

1.00 each

Capacitors, Surface Mount – most are 1206 size. Packed in bags of 10 for 50c

NPO 50V working: 0.68pF, 1.2pF, 1.8pF, 2.2pF, 5.6pF, 6.8pF, 8.2pF, 10pF, 15pF,

22pF, 33pF, 68pF, 82pF, 270pF, 470pF, 100nF.

63V working: 10pF, 47pF, 100pF, 270pF, 330pF, 470pF, 1nF, 1.2nF, 2.2nF, 4.7nF, 10nF

10uF 25V electrolytic

Capacitors, Metal Clad Mica (Unelco, Semco) $2.20 each

Values (in pF): Or 10 up for $2.00 each

3.9, 4.7, 6.8, 10, 12,15, 20, 22, 24, 27, 30, 33, 34, 47, 51, 62, 82,

100, 120, 130, 150, 220, 240, 300, 360, 680pF

Most are rated 350V working ±5% tolerance.

Similar to illustration, tab does not have hole:

Mixers:

Mini-Circuits Model TFM-2-408-1: 5 – 1000MHz 6dB insertion loss,

+17dBm LO drive, 40dB isolation

$25.00 each

Note: some of these mixers are labeled TFM-2-408-2. They are identical to the TFM-2-408-1.

spectrum - qsl.net 2016-03-185.pdfspectrum march 2016 vol. 53 no. 3 the official newsletter of the...

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