RSGB IT Helpdesk still busy but situation improving

There have been very long delays on the RSGB IT Helpdesk recently due to an unprecendented number of tickets in the system – this has of course been exacerbated by the rollout of our upgraded Membership Services login system. The situation is now improving, but there are still long wait times. To help the system […]

New Regional Forum Chair and Secretary

At the Regional Forum meeting on 16 May, the Regional Representatives elected David De La Haye, M0MBD as Chair of the Regional Forum and Neil Yorke, M0NKE as its Secretary. The Board would like to thank Mark Burrows, 2E0SBM and Tony Miles, MM0TMZ for their service in previous years as Regional Forum Chair and Secretary […]

RadCom June 2022, Vol. 98, No. 6

LimeSDR RFE front end and PA A low noise front end and power amplifier add-on for the LimeSDR series To read this edition, tap or click cover image News and Reports Around Your Region – Club events calendar 84 Around Your Region – Events roundup 88 New products 14 News 11 RSGB AGM trophy presentations […]

Service update for clubs and international members

We are sending emails to clubs and international members today. Each email will include a unique link to allow you to create a new password and access the updated membership portal. Once the password is created, it is important that you log in each time with your call sign and password rather than your email […]

New Cochno Shack – Latest – May 2022

July 2019 – Shack Looking SE Over Glasgow



A fruitful day by completing surrounding fence.

Pictures added to MEMBERS FORUM

22/01/22: GM0EZP, 2M0GUI (GM4TOQ, GM4COX)

GM4AGG taking place in RSGB 80/40 SSB AFS contest. Operators GM0EZP, 2M0GUI. see CALENDAR .

11-12/12/21: GM4TOQ, MM7STP, GM0EZP, GM4COX

Wx grim. Heavy rain through the day, however through the night skies cleared and it was fairly warm. Sunday dawned wet with heavier rain in the afternoon, just in time for ‘strip-down’.

Balun and balancing resistor installed; optimising Beverage . 160M dipole raised in preparation for the TransAtlantic Celebrations. Successful outcome – see POST#1832 .

09/12/21: GM4COX

Installing earth rods at each end of the Beverage and measuring DC loop resistance and resultant Z being presented. From this, matching balun to be made – 6:1 (COX).

05/12/21: GM4CXM, MM1BXF, MM7STP (AFS), MM0ZUN, GM0EZP, GM4TOQ, GM4COX (Beverage)

Beautiful early winter’s day. Sunshine and temp high of 5C dropping to -2C when leaving Site.

GM7WOS taking part in RSGB’s AFS .

Installing 160M Beverage & dipole in preparation for TRANSATLANTIC CELBRATIONS.

20/11/21: GM4TOQ, 2M0FYJ, MM7STP, GM4COX

Discussions with Bartek – FYJ about battery 12V feed for both Shacks.

Discussions with Alan – TOQ about aerials for first amateur TRANSATLANTIC CELEBRATIONS (Dec 1921/2021) participation (GM4AGG)

Scott – STP operating FT8 HF (GM4AGG) & 2M (GM7WOS).

13/11/21: MM1ESW, MM7STP, MM1BXF, GM4COX

Beautiful Autumn day. Tower fully up. ‘Bagging’ some SOTA’s on 2M (GM7WOS).

Stuart – ESW working on Shack computer.

Jack – COX had first 13cms from Site (2320.300MHz – FM) using GM7WOS for SOTA contact with G(M)4VFL/P on GM/SS-220 . 59/59 bothways. Operation location on Site is where a dedicated 13cms station will be located.

Scott – STP operating on 4M using homemade dipole.

Gavin – BXF operating 2M Meteor Scatter using 14el Parabeam.

PICS to be added to Cochno Folder.

07/11/21: MM1ESW, GM4COX

Too windy to raise tower. QSO’s on 2M FM and 20/80M.

Working on Shack main computer.

02/11/21: GM4COX

Taking part in the monthly RSGB 2M Activity Contest (GM7WOS) – UKAC 2M and testing out new FT-847 + DG8 headamp + Amplivox headset + new footswitch + Parabeam

01/11/21: GM4DAE, MM1ESW, GM4COX, GM4BGS

More GB4GDS contacts.

Additional ‘welfare’  equipment added to Shack#2.


Taking part in SSB CQWW .

Ongoing improvement of Shack#2 facilities.

28/10/21: GM4COX

Trying out new FT847 and link dipole in UKAC 80M CONTEST.


Clearout Shack#2 and paint in preparation for respite facilities. Finish installation of Linked Dipole. More GB4GDS contacts on HF & VHF.

20/10/21: GM4COX, GM4BGS

Install new FT-847 + FC-20 and checkout. Pull rotator cable into Shack via cable duct and reterminate. Start installation of 80M, 60M, 40M linked dipole. More GB4GDS contacts on HF and VHF.

16/10/21: GM4TOQ, MM1BXF, GM4DAE (MM5AIR), MM7POL (+Brodie), GM0EZP, GM4COX

Install DG8 head amplifier in Parabeam feed. Gavin BXF demonstrates a dual band handset used for satellite operation on 144/430MHz – HERE . More GB4GDS contacts.

12/10/21: GM4COX, GM4DAE (MM5AIR), GM4BGS

Repair Collinear feed within cable duct. Duct waterlogged, install new drainage hole. Install FT-221R and checkout on Parabeam (GB3VHF & NGI). More GB4GDS contacts.

06/10/21: GM4COX, GM4DAE (MM5AIR)

First activation of GB4GDS from New Shack. Some pictures – HERE . (lovely Autumn Wx)

04/10/21: GM4COX

Preparatory work in preparation for GB4GDS. Operating as GM4AGG

25/09/21: GM4TOQ, GM4BGS,  MM0ZUN and others

Replacement cable and final guide wheel fitted. Tower now raising and lowering with reduced friction.

Possible problem with Collinear? To be investigated.

18/09/21:  No work carried out. Still awaiting replacement cable and Alan GM4TOQ not too well.

11/09/21: GM4TOQ, GM0EZP, GM4BGS and others

Installing replacement cable guide wheels on tower. Two successfully installed. Lowest tower section wire snapped. No damage done.

Ernie GM0EZP “………………The tower needed to be raised about 1 inch to give Alan the clearence he needed, that is when this happened,  oops! The Main section cable snapped.  When we managed to free the cable Alan took it to try and source a replacement………………….

04/09/21 : MM7STP, MM1BXF, GM4CXM, GM4TOQ, GM0EZP, MM7CVB, MM7DCD, MM1ESW and others.

Our first ‘toe-in-water’ taster in the RSGB 144MHz TROPHY CONTEST . Looking promising!




Three replacement tower wire guide wheels still require to be replaced along with the on-going clean out of #2 Shack.

28/08/21: GM4TOQ, GM4BGS, MM7STP, GM4COX

A sunny one!

Cleared fault with X7 feed.

Scott MM7STP operating FM (GS4AGG) using new collinear. Working well!

Made a start on clearing Shack#2.

See: POST#2067 .

Pictures to be added to COCHNO FOLDER .

21/08/21: GM4TOQ, GM4BGS, GM4COX (GM4CXM)

A wet one!

Replacement heavier duty winch fitted and tested. Working well though problems with 3 guide wheels (too small 60mm should be 100mm x 15mm) on tower causing raising cable to jump. Replacements being sought.

Intermittent problem with X7 feed. Problem located and requires to be cleared.

See: POST#2007 .

Pictures added to COCHNO FOLDER .

14/08/21: GM4TOQ, GM4BGS, GM0WRR, GM4COX

Problems with electric winch. Too light for the job. Investigating a heavier winch. Also problems with some guide wheels – too small. Replacements being sought.

Terminate HF Beam, VHF Beam and Collinear feeds in Operating Shack.

Pully and halyard added to tower.

See: POST#1930 .

Pictures added to COCHNO FOLDER .

07/08/21: GM4TOQ, MM0ZUN, GM8XGI, GM4COX

Successfully installing tower raising electric winch and checking rotation of all aerials and feeders.

See: POST#1864 .

Pictures added to COCHNO FOLDER .

03/08/21: GM4COX

Testing out VHF Horizontal Yagi & Rotator by taking part in the monthly 2M Activity Contest (UKAC).  A very successful outcome.

See: POST#1849 .

Pictures added to COCHNO FOLDER .


A significant milestone has now been reached. The successful installation on the Shack’s Tower of our HF and VHF aerials.

See: POST#1842 .

And pictures have been added to COCHNO FOLDER .

24/07/21: GM4TOQ, GM0EZP, GM8XGI, GM4COX

 Pushing on with the aerial installations on the tower.

Sam had been successful in reconditioning the Club’s main rotator and delivered it to Alan.

In preparation for the main feeders into Shack#1, the feeder duct had to be completed.

Likewise, facia fabricated with cable glands and ‘N’/SO239 ‘feed-thrus’ to be mounted on side of #1.


17/07/21: GM4TOQ, GM0EZP, MM0ZUN, MM7CGB

“………..The shack moves on. Arrived about 1pm Alan and Kenny were working away with the 360 digger . Charles had popped over with some digging tools which were put to good use. Trench dug, slabs laid , and a gate to lean on. I left about 5 leaving Alan and Kenny to soldier on .

A good afternoon glad the trees have some shade.
Cheers Ernie………………………”

10/07/21: GM4TOQ, GM4COX

More slabs laid in front of Shack#1 in preparation of aerial installations on tower.


Late June – Early July: GM4BGS

Sam GM4BGS Refurbishes Club’s main rotator in preparation for the installation of HF, Parabeam and high gain Collinear on tower.

See COCHNO FOLDER for ‘Before & After’.

03/07/21: GM4TOQ, GM0EZP, MM7CGB

Bricks relocated to alongside bunker base in preparation for start of build.

19/06/21: GM4TOQ, MM0UXD (+Laura), MM7CGB, GM0EZP, GM4COX (Charlie GM8XGI)

Two pallets of bricks loaded (by hand) and transported from Clydebank to farm; then one pallet transported up to Site in preparation of the new bunker build. Additional slabs laid. Pictures added to COCHNO FOLDER .

05/06/21: GM4TOQ, MM0ZUN, GM0EZP, MM0UXD (+Laura), GM4COX

A good day’s work was put in by Kenny MM0ZUN, Alan GM4TOQ, Ernie GM0EZP, Cris MM0UXD (and Cris’s YL Laura – a snip with the shears attacking the Rhode’s (;>) and yours truly.  We were successful in laying the base in preparation for the ‘bunker’ build. See additional Pics added to COCHNO FOLDER .

17/05/21: GM4COX

Visit to Shack#1. Check internal ‘dryness’ after being closed for the winter, and ‘Lockdown’. Dry and in good condition.

Refit air vent grill to stop insect ingress.

Pictures taken and added to COCHNO FOLDER .

01/05/21: GM4TOQ (and Garry)

Work resumes.

100′ Mast mounted on groundpost.

Post added to MEMBERS FORUM #1497 .


12/12/20: MM7STP, 2M0FYJ, GM4COX

A new course of slabs laid between #1 & #2 Shacks to the rear of #1 to accommodate generators.

Picture added to MEMBERS FORUM .

05/12/20: MM7STP, 2M0FYJ, GM4COX, GM4TOQ

A foundation built and a course of 2 x 2′ slabs laid in front of Old Shack (#2).

Pictures added to MEMBERS FORUM .

28/11/20: GM4TOQ, GM4COX

Access slabs laid (3 x 2’s). Using small JCB digger, more stumps removed and soil in front of shack levelled. 

Pictures added to MEMBERS FORUM .

21/11/20: GM4TOQ, MM7DCD, MM7STP, GM4COX + Scotty & Gregor

A further 4 Cubic Metres of concrete added to complete job. (Approx 10 Tonnes + 2 CuSq on the 14th – total of 15 Tonnes) And small quantity of extra concrete used to build ‘step-down’ from #1 to #2 Shack. 

Pictures added to MEMBERS FORUM .

14/11/20:  GM4TOQ, MM7DCD, MM0ZUN, MM7STP, GM7OAW, GM0EZP, GM4COX + Garry

Groundpost postioned and initial concrete mixed and poured, along with ‘rubble’ to stabilise and secure. 

Pictures added to MEMBERS FORUM .

07/11/20:  GM4TOQ, MM0ZUN, MM7STP + Garry

Hole dug for tower base.


To accommodate the 100′ tower base; rhododendrons cut back. Knowing the position of the tower; slabs laid outside Shack#1, to connect to access gate and base of tower.

Photos added to COCHNO Folder. (COX) 

19/09/20: MM0ZUN, GM4TOQ

  • Unloaded a pile of slabs next to the shack taken up by the tractor

  • Spent a few hours on making fence posts out of what we can reuse of the old fence ones.  Ground and cut then welded the remaining fence posts into a usable state, the bottom ends that had previously been in the ground had rusted away

  • Stock take of fencing bits that can be reused and worked out we need to buy approx 80m of bar for the rungs in the fence. Alan will check up on supplier

  • A lot of the fence along the top in place, still missing some of the bar for it though but have the posts and top rail in
  • Cut down some bushes in the fence line and where the base of the tower will go. Need to remove roots from there, this can be done when we have the digger up for doing the hole for the tower base. Once the branches have dried a bit they can be burnt

19/07/20: GM4COX

Photos of progress added to MEMBERS FORUM .


Continue to re-install wrought iron fence.

Continue rebuild/repair of Shack#1 frontage

Paint exterior of Shack#2

12/07/20: 2M0WWC, GM4COX

Paint exterior of Shack#1

01/06/20: GM4COX, GM4TOQ

Work resumes.

Burn rhododendron foliage & branches that had been cut the previous year.  

Paint Shack#1 access frontage


05/03/20: GM4COX

Shack#1 visit after winter ‘hibernation’. Shack dry. Photos taken and loaded into Cochno folder – MEMBERS FORUM .

17/11/19: GM4TOQ, GM8XGI, MM7AJE

Install new access door to Shack#1.

Drop height of Shack#2 for easier access.

26-27/10/19: GM4TOQ, GM4BGS, GM0EZP, MM1ESW, MM7AJI, MM7AJE………

CQWW SSB – GM4AGG taking part. See POST#160 (Members Forum) .

21/10/19: GM4COX

More update pictures added to Members Forum.

21/09/19: GM4COX

New padlocks fitted. Floor mats fitted. Lefthand door frame repaired. Vent fitted.

13/09/19: GM4COX

Operating Desk secured. Operating chair floor boarding fitted. On-going work on door frames (right & left).

08/09/19: GM4TOQ, GM4BGS, MM7AJI, MM7AJJ

HF Beam relocated from Alan’s QTH to farmyard. Lefthand door protection door padlock cut. On-going work on surrounding fence.

07/09/19: GM4COX

Shack floor tiles cleaned. Operating Desk – equipment shelf modified and both sanded down and painted. Front door (right hand side) frame repaired.

02/08/19: GM4COX

Comprehensive CHECKLIST of outstanding items Posted on Members Forum.

20/07/19: MM1ESW, GM4COX

Stuart – MM1ESW & myself were up at the Shack on Saturday (20th) specifically to carryout some more sealing on #1 and checkout #2. This I did and took the opportunity to take a few pictures and add to the relevant Folders in Photos.

16/07/19: MM0ZUN


I was out at the shack this afternoon……………… started sorting out the contents of the old shack. I divided stuff up into components and equipment. The components are now packed up and labeled ready to go to the Electron Club for use by the SoLDER group and others. Just need to get them down from the shack at some point

I have photographed all the equipment (there may be some hiding that I couldn’t get at due to all the cable making things a bit crushed inside) All the smaller stuff is now in 2 crates while the larger stuff remains under the bench and next to the cooker


11/07/19: 2M1CKE, MM0ZUN, GM4TOQ, GM4COX

Floor tiles relayed in #1 and operating desk re-assembled.

#1 Roof some areas sealed. Other areas outstanding.

Tower ground post modified and aligned to swivel point. More modifications required.

A fuller Member’s Post (inc photos) – HERE .

24/06/19 – 05/07/19 : 2M1CKE, MM0ZUN, GM4COX

Painting of the inside of #1 completed (just some small touch-ups required)

Pat has made a start on painting the inside of #1.


On-going modifications to tower & groundpost. (Pictures added to Members Forum)

22/06/19: GM4TOQ, GM4BGS, GM4COX, MM7MCM

A long but successful day yesterday. New ‘BIG’ tower (and ground-post)  uplifted from south of Inverness and delivered to Cochno. To be located to new Shack. Ground-post to be slightly modified. Hole dug for ground-post, positioned and concreted into place.

Thanks all: Alan – TOQ, Sam – BGS, Jack – COX and Archie – SWL (and of course a big thanks to the tractor driver who uplifted both the tower and ground-post and placed on pick-up. Saved us a lot of time).

A fuller Post to be made in our MEMBERS Forum along with pictures.


ABW 22/06/19 a team are heading north to uplift.


Arrangements underway to uplift tower.


Pictures added to Members Forum.


Both Shacks Levelled.

Shack#1, inside and outside washed and cleaned.

Start made on surrounding fence.


Wash outside Shack#2 (Old Shack) in preparation for painting #1 & #2. Paint colour to be decided. (This may depend on what is available – hi?)

Paint interior of #1. (emulsion)

Organise uplift of new tower.


Members Forum Post updated and pictures added.


Cleared old Shack#2 for preparation to be re-located on new site. Moved and sited into position. Items that had been removed most are returned for the moment.

Shack#1 emptied in preparation for refurbishment. Most items transferred to Shack#2 for the moment.

Ground around both shacks re-instated after tractor & dumper action. Looking good!


New tower gifted to the Club. Decision to ‘scrap’ old one but re-use certain items. New tower has to be collected. To be organised.


Posted by Kenny – MM0ZUN on our MEMBERS FORUM:

“I’ve added some photos from today of getting the shack roughly into its final location.

This wouldn’t have been possible to get done without Gary and some of his friends work.



Move Shack#1 (Newest Shack) and Tower for ease of access and refurbishment.


Cleared the rhododendrons and cut the dead tree. (see new photos added to PHOTOS/COCHNO_Shack (Club Members only))

Dropped the Tower, removed the HF beam & VHF collinear.

Refurbished the HF beam (The VHF collinear appears to be in good shape)

Access has now been made to the Tower and Shack.

30/04/19 : And the ‘lads’ HAVE:

Well this Project is well underway thanks to the efforts of Alan – GM4TOQ, Alan’s son Garry & Mate, Sam – GM4BGS and Sam’s son Peter.

So where are we at?

Well as you know (or may not – see my thoughts in this POST#25 (Members only)) there is a pile of work to be done.

March 2019 – View From Shack Looking SE Over Glasgow

24/03/19 : GM4TOQ, GM4BGS, GM4COX, MM6BWS

Site visit with follow-on proposals.












DX4WIN.CTY #22.18 – 16 May 2022

Version entity is South Africa, ZS Entities: 402 Prefixes: 4,664 Callsigns: 30,083 Managers: 93,171 Addresses: 13,046 [download] DX4WIN 8.05 and earlier [download] DX4WIN 9.01 and later [Entities] [Prefixes] [Callsigns] [Managers] [IOTA] Entities Prefixes Callsigns 3D2RRR from 16 May through 30 … Continue reading

N3FJP – 16 May 2022

Version entity is Kerguelen Islands, FT/x ADIFCnt.txt has 340 DXCC entities and 62 deleted DXCC entities. arrlpre3.txt has 22140 prefix+callsign mappings. cqwwpre3.txt has 22292 prefix+callsign mappings. [download] Added/changed Entities/Prefixes/Callsigns: 3D2RRR is Rotuma Island, 3D2/r GB8DX is Scotland, GM IZ0PAP/GIR is … Continue reading

Big CTY – 16 May 2022

Version entity is Kerguelen Islands, FT/x [download] Added/changed Entities/Prefixes/Callsigns: 3D2RRR is Rotuma Island, 3D2/r GB8DX is Scotland, GM IZ0PAP/GIR is Italy, I AL6M is in ITU zone 6, not ITU zone 8 AL6M is in CQ zone 3, not CQ … Continue reading

CTY-3218 – 16 May 2022

VER20220516, Version entity is Brazil, PY Download: [ CTY-3218 | CT8 | Win-Test | WriteLog | XML ] Added/changed Entities/Prefixes/Callsigns: 3D2RRR is Rotuma Island, 3D2/r GB8DX is Scotland, GM IZ0PAP/GIR is Italy, I AJ6WA is Alaska, KL R9FCS/4 is European … Continue reading

Voice of Korea: May 12, 2022. North Korea officially announces its first COVID-19 outbreak

Quoting The Diplomat:

For the first time, North Korea has confirmed a positive COVID-19 case within the country. The state-run Korean Central News Agency reported on May 12 that a “specimen from persons with fever” in Pyongyang had come back positive for the Omicron BA.2 variant, a particularly contagious strain of the virus. The phrasing of the announcement makes it unclear how many people are infected. KCNA called the development a “most serious emergency case of the state.”

Below is the recording of this announcement being made on the Voice of Korea's English language service. The recording was made on May 12, 2022 at 1908 UTC using GPD MicroPC, AirSpy Mini, SpyVerter 2, Wellbrook UMB130 balun and a 2x6m dipole. Demodulation and additional signal audio enhancement was performed in SDR#.