Dec 182013

I had a go in the Geminids meteor shower on 4m. I was active in the evening of the 13th until early on the 14th December. As ever it was a very good shower but the activity on 4m was disappointing. I have to conclude that the best band for Meteor Scatter is definitely 2m where there appeared to be a lot more activity if the QSO maps on the ON4KST pages were anything to go by. We will have a good 2m station some time in the Spring.

Anyway I managed the following 7 QSOs, the last one was tough with plenty of other callers as SP7VC/8 in KN19 was a DXpedition. Pleased to work the new square.


Mick and Robert were there for support as they often are. Thanks as ever lads.


Conrad G0RUZ



Nov 112013

I have left a note with Carol at RSGB to confirm our exam status. Both Conrad and I have completed Assessor vetting forms and these will be sent off this Friday.

These may take two months to approve.

I am in contact with Steve Hartley from RSGB trainers sourcing the best training slides and information available which we can tailor to our needs.

Im sorry it is a long slog but we were left in the lurch a little.

We are hoping to get a batch of M6 and 2E processed in the new year.

I see no reason why we cant start getting to grips with some basic elements such as tuning a radio, re connecting and SWR tuning etc.

Other practicals such as morse awareness and making a qso can only be done whilst on a dedicated course.

Ill update you with progresss.


Nov 012013

Published by ARRL

ARLD044 DX news

DX Bulletin 44 ARLD044
From ARRL Headquarters
Newington CT October 31, 2013
To all radio amateurs

ARLD044 DX news

This week’s bulletin was made possible with information provided by
N7QT, NC1L, QRZ DX, the OPDX Bulletin, 425 DX News, The Daily DX,
DXNL, Contest Corral from QST and the ARRL Contest Calendar and
WA7BNM web sites. Thanks to all.

EASTER ISLAND, CE0Y. A group of operators are QRV as XR0YY from
Hanga Roa, IOTA SA-001, until November 7. Activity is on 160 to 6
meters using all modes. QSL direct via EB7DX.

CAPE VERDE, D4. John, G4IRN will be QRV as D44TWQ from Boa Vista
Island, IOTA AF-086, from November 5 to 12. Activity is holiday
style on the newer bands using CW. QSL to home call.

NIUE, E6. Look for JA1KJW, JA1JQY and JA8VE to be QRV as E6AK, E6AY
and E6AA, respectively, from November 3 to 9. Activity will be on
80 to 10 meters using all modes. QSL to home calls.

SCOTLAND, GM. Special event station GM100RSGB will be QRV from
November 6 to December 2 to celebrate the 100th anniversary of the
RSGB. QSL via bureau.

SAN ANDRES AND PROVIDENCIA, HK0. A group of operators are QRV as
5J0R from San Andres Island, IOTA NA-033, until November 10.
Activity is on 160 to 6 meters using CW, SSB and RTTY. QSL direct
via EA5RM.

ANTARCTICA. Max, IA0MZ is QRV from Mario Zucchelli Station until
February 2014. QSL via IW0EFA.

ITALY, I. Special event call sign II8IDXC is QRV until May 2015
during the International DX Convention 2015 in Paestrum. Activity
is on the HF bands and 6 meters using all modes. QSL via IZ8EDJ.

SABA, ST. EUSTATIUS, PJ5. Rob, N7QT and Hugh, W4VAB will be QRV as
PJ6/N7QT and PJ6/W4VAB, respectively, from Saba from November 7 to
17. Activity will be on 80 to 10 meters using CW, SSB, RTTY, PSK
and JT65. QSL to home calls.

ANTARCTICA. Operators Oleg, UA1PBA, Alex, UA1PAW and Slava, UA1PAI
are QRV as RI1ANR from Novo Runway until March 2014. Activity is on
the HF bands with a focus on the low bands. QSL via RK1PWA.

POLAND, SP. Special event station SN640OKA is QRV until December 31
to celebrate the 640th anniversary of Ostroleka, a town in Mazovia.
QSL via Bureau.

BANABA, T33. A group of operators will be QRV as T33A from Banaba
Island, IOTA OC-018, from November 5 to 18. Activity will be on 160
to 10 meters using CW, SSB and RTTY with six stations active. QSL
via W2IJ.

TURKEY, TA. Members of the TC Special Wireless Activity Team are
QRV as TC301B until November 17 to celebrate 30 years of the Turkish
Republic of Northern Cyprus, which is recognized only by Turkey.
QSL via the bureau.

VIET NAM, XV. Toshi, JA3NHL and Take, JA6CNH will be QRV as XV2NHL
and XV2CNH, respectively, from Ho Chi Minh City from November 2 to
8. Activity will be on 160 to 6 meters using CW, SSB and RTTY.
QSL to home calls.

VANUATU, YJ. Operators Nob, JA2AAU, Iwao, JA2LSS, Iku, JA2ATE and
Tug, JA2ZS are QRV as YJ0AU, YJ0CJ, YJ0TE and YJ0ZS, respectively,
from Iririki Island, IOTA OC-035, until November 11. Activity is on
the HF bands and 6 meters using CW, SSB and RTTY. QSL YJ0AU and
YJ0CJ direct via JA2ATE, YJ0ZS via JA2ZS and YJ0TE via JA2ATE.

OPERATION APPROVED FOR DXCC CREDIT. The following operation is
approved for DXCC Credit: Afghanistan, T6MH, 2012 and 2013
operations. If you had this contact rejected in a recent
submission, send an email to to be placed on
the list for an update to your record.

THIS WEEKEND ON THE RADIO. ARRL CW Sweepstakes Contest, North
American Collegiate ARC CW Championship, NCCC Sprint, IPARC Contest,
Ukrainian DX Contest, Himalayan Contest, IPARC Contest, High Speed
Club CW Contest and the DARC 10-Meter Digital Contest are all on tap
for this upcoming weekend. The ARS Spartan CW Sprint is scheduled
for November 5. The QRP CW Fox Hunt is scheduled for November 6.
Please see November QST, page 87, and the ARRL and WA7BNM contest
web sites for details.

Nov 012013

Published on CCW reflector 31 October 2013

The design for the PA board is now finished. The Sentry SDR transceiver will use four Mitsubishi RD16HHF1 mosfets in push pull parallel.

I’ve just spent an afternoon measuring the transmit IMD performance of the prototype transceiver both as a transverter driver and transceiver.

The transmit third order IMD of the 1 mW transverter output at full power is -35 dB. At half power it is -48 dB. This checks that the USB sound card, transmit I/Q filter, upconverter and driver amplifier are working correctly and the output is very clean.

Testing the PA at 12V rather than 13.8V the transmit third order IMD at 25W peak output is -30 dB. Running at 13.8V will improve the IMD by a few dB but I wanted to test the worst case scenario.

What do these figures compare to? In recent QST reviews of amateur transceivers an Elecraft K3 had a third order IMD of -27 dB and the Flex Radio Flex-1500 came in at -22 dB.

The tests I’ve run used HDSDR as the SDR software with Spectrum Lab generating the two tone signal of 700 and 1900 Hz using Virtual Audio Cable. Measurements were taken both with a HP spectrum analyzer and a SDR-4+ receiver.

I also tried some digital mode programs generating PSK signals with similar results.

I’ve also run the transceiver and prototype PA on permanent transmit at full power for three hours so it should stand a few RTTY contests!

I should get the PA and low pass filter PCB board designed over the weekend and then it’s just some firmware testing before I can finish the main board PCB design.


Chris, G4HYG

Oct 012013

G4NOK managed a very creditable 4th place overall in the RSGB 4m cumulatives. This is excellent considering our humble beginnings in the contest way back in February.

You can see the results here:
RSGB 4m Cumulative Contest Results 2013

We can do even better next year. G4NOK will be entering the 6m, 4m and2m cumulatives at the very least and maybe even 70cms and 23cms.

There is a lot of work going on behind the scenes to make this happen. Thanks to all the supporters of this cause, you know who you are.

Aug 192013
Early Setup at Flamborough 2013

Early Setup at Flamborough 2013

A very big thank you to all of those that made Flamborough 2013 such a great success.

This year we ran five stations covering 2m, 12m, 20m, 17m and 40m.

This was not without problems however and the club will have appropriate band pass filters installed next year for 40, 20 and 17.

I suppose it was inevitable when then were all operating so close together.

Day 1
After switching 40m on at 6am and trying for about 40 minutes I managed to work 9Y4LAS in Trinidad and Tobago. This was the very first call for the new call GB4FL.

40 metres continued steady all day and ended at midnight with a call into Canada and 316 contacts made.

Day 2
No time for sleeping with Simon on site and the station was online at 0700 and worked almost endlessly until 2300 UTC attained approximately 540 contacts.

Reports were favourable and glowing comments of fantisimo audio, plus 60db and you are the loudest and strongest signal on the band.

GB4FCL did extremeley well and i think this is down to team working.

There certainly was some team working going on with operator and loggist rotation and backoffice support providing delivered meals and hot drinks.

The Site

I think it is a great shame we cannot operate from the head but the red tape and time limitations makes this so difficult. The application to use theland alone is 14 pages and East Yorkshire Council rumoured about applying an annual fee of £300.

It was not an easy decision to move to World farm but after I explained to the lighthouse station event organisers they were adamant that they would rather have us participate than not.

The farmer was very accomodating and supplied mains hookup to us . We had a dedicated area that did not interfere with other campers. He even told new arrivals what we were doing and and generated some interest for us and we received a few visits inside the shack during peak pile up conditions. They left enlighted.

I was too busy to take any photos but the stations looked the part and certainly promoted the club and Lighthouse weekend very well.

A very well done and thank you to all those participating


Aug 052013

The Perseids Meteor Shower has started and it is already obvious that there are a few Perseid meteors around. This gets VHF operators all excitable because when the shower peaks meteor scatter can be a very effective means of communication indeed. It is quite entertaining as well especially on 2m where the traditional VHF free for all takes place at the peak of of the major meteor showers.

The 2013 peak is due to occur between 18:00 UTC and 21:00 UTC on Monday 12th August. The Zenithal Hourly Rate  of the Perseids is 100, which means that given a clear sky an observer should see 100 meteor trails in an hour. In my experience when the Perseids peak it is always cloudy! The best visual display that I ever saw was the Leonids meteor storm on 17th November 1999. In the short drive from up the M1 Barnsley to Wakefield I counted over 40 bright meteors. It really was incredible. At that time the club had a battered and broken 14 element MET yagi and a barefoot Yaesu FT736. I worked 110 stations and literally heard F/G8MBI and 9A1CCY continuously at S9 for over 7 hours. It was truly amazing.

Here is some video footage from 2001 which was no where near as good. I remember the meteors burning up low to the horizon and being quite green in colour.

First a bit of background for newcomers or people who have never even realised that Meteor Scatter was viable for them, rather than re-invent the wheel I will direct you to an excellent explanation of the ‘science’ behind what meteor scatter is and how it works.

Just follow the link below

G3WZT’s Meteor Scatter Page

The G3WZT page is biased slightly towards 144 MHz operation which is very popular in Europe. However MS reflections on 50 MHz and 70 MHz are typically stronger and longer. Successful QSOs can be made with very modest equipment indeed, even if you don’t feel ready to make QSOs it is definitely worth a listen. You can also listen to meteor scatter on a simple car stereo. Find a clear frequency (I use 87.5 MHz) and just listen late evening or early morning, you will hear the meteor bursts coming through from various parts of Europe.

Meteor bursts will be mainly short but many can be over 10 seconds for instance I heard a 20 second burst from a station on 4m on Saturday.

  • During the GJ4NOK operation we worked a station running 10W to an indoor dipole at 800 kms on Meteor Scatter.
  • I have worked a station in Belarus who was running 10W to a 4 ele at the peak of the Perseids shower on 144 MHz – I was using a 9 ele and 100W.
  • In recent months I have worked many stations on 4m with just 16W to a 6 ele on 4m

Because of the short nature of meteor reflections high speed data methods are regularly employed nowadays, by far the most popular of which is FSK441 mode. This can be accessed by using the excellent WSJT software from Joe Taylor W1JT. FSK441 allows the exchange of both calls and a report in a short time, this is obviously variable depending on the length of the call-signs used but in my experience both calls and a report are available in less than 0.2 seconds with a clean decode. It works very well indeed.

Have a look here:

WSJT Software

This is what we used at GJ4NOK for the MS QSOs. As there was no Sporadic E propagation FSK441 accounted for 50% of the contacts we had.

If there is sufficient interest I will set up a demo of meteor scatter using 6 and 4m using FSK441 on Thursday night.

If you are interested just leave a comment below.


Conrad G0RUZ



Aug 052013

I have been looking at the results for the RSGB VHF National Field Day contest and GJ4NOK was the best DX on 4m for a number of stations in the contest. I think that it has certainly helped put the club on the VHF map.

Have a look for yourselves, scroll down to the 70 MHz section.

RSGB VHF NFD claimed scores

Thanks again to Gabi HA1YA and Roger at the DX shop.



Aug 022013

The club now has a chain saw and we need to do a bit of tree lobbing weather pending.

Mick Simon Conrad and myself will be there this Saturday weather pending.

The biggest evolution will be the row of trees adjacent to the garage.
Whilst retaining their frontage we need to cut the back to give us about 6 metres of turning radius ready for moving dualbander , 4 metre monobander and 2 metre to this tower.

We cant do any antenna work until we have this cleared.

Anyone is welcome

My email is patched to phone if you wish to contact me


Jul 052013


We have completed the first leg of the journey with no catastrophes apart from a broken flask. We have been occupying ourselves feeding the tamest fox in the UK.

We set sail at 07:30 UTC and arrive at 12:15. We will drop our bags of at the hotel and then get straight to the shack. Hopefully it won’t take long and we’ll be qrv.

Looking forward to working all.



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