RSGB GB2RS News Bulletin for 28th January 2024

GB2RS News

Sunday the 28^th of January 2024

The news headlines:

• The RSGB election deadline is coming up
• RSGB Build a Radio workshop planned at Bletchley Park
• Registration for SOS Radio Week is open

The deadline for nominations in the RSGB elections is next Wednesday, the 31^st of January. If you would like to stand for the one elected Director role, or any of the eight Regional Representative vacancies, you will need to complete the nomination process by 2359UTC on Wednesday. Full details of the process are on the RSGB website at rsgb.org/election  The Society would encourage anyone with a passion for amateur radio, and a desire to support the amateur radio community, to look at the candidate information and consider stepping forward for one of these roles. You’ll find full information about the skills and experience needed in the candidate packs, and there is still time for an informal chat about the roles and responsibilities if you’d like one. But don’t delay as late applications won’t be accepted!

As part of its British Science Week activities, the RSGB is organising two build-a-radio workshops at Bletchley Park on Sunday the 17^th of March. Funded by the Radio Communications Foundation, these fun workshops are a great way for young people to try a practical amateur radio activity. The sessions are for youngsters aged 11 to 18 who will build their own VHF FM broadcast receiver using simple tools. The workshops cost £11 for the participant, and if you are an adult accompanying a participant who is aged 16 or under, you will receive free admission to Bletchley Park. These workshops are always very popular so book now if you know a youngster who would like to take part. Go to the Bletchley Park website at bletchleypark.org.uk then choose the What’s On option from the top right-hand menu.

SOS Radio Week is an annual event that takes place throughout May to celebrate the work of the volunteers from the Royal National Lifeboat Institution, Independent Lifeboats and National Coastwatch Stations around the British Isles. Members of these organisations save many people who are in danger along, and around, the thousands of miles of coastline and further out to sea. This year is the 200^th anniversary of the founding of the RNLI, so SOS Radio Week is being branded ‘SOS Radio Week 200’ for those operators who are supporting the RNLI during the event. Participants can operate from home, a public location, or a lifeboat or Coast watch station, with the appropriate authorisation from the station manager. A commemorative certificate will be available to all official stations that record their contacts on the website, together with awards for the top individual and club, or group, stations on each band from 160m to 70cm. Registration for individual and group operators is now open via sosradioweek.org.uk

The RSGB has released a further three presentations from its 2023 Convention. In the first, Professor Simon Watts, G3XXH gives a fascinating presentation about VHF airborne radar and the design and performance of these early systems in World War II. The other two presentations focus on the World Radiosport Team Championship which the UK will be hosting in 2026. The WRTC is held every four years and is considered to be the Olympic Games of radio contesting. At the RSGB Convention, WRTC Chair Mark Haynes, M0DXR gave an overview of what is being planned and how people can get involved either as a spectator, volunteer, competitor or referee. John Warburton, G4IRN gave his perspective on what it is like to be a WRTC referee. The full WRTC planning team also gave an update recently on an RSGB Tonight@8 live webinar. You can see all of these presentations on the RSGB YouTube channel at youtube.com/theRSGB

RadCom Basics aims to help newcomers to amateur radio develop their knowledge and experience. Others enjoy reading it as it helps remind them of things they have forgotten or practise a skill they have not used for a while. The January 2024 issue of RadCom Basics is now available. It contains articles that provide advice on getting started with Bunkers on the Air, working on the 160 and 80m bands, constructing a multi-band vertical antenna, and more. You can find RadCom Basics at rsgb.org/radcom-basics

The latest issue of RadCom Plus, the online magazine for the more technically-minded radio amateur, was published this week. The first article, by Tom Alldread, VA7TA, is about how to make a protection filter for an SDR or VNA. Following this is a contribution from Sheldon Hutchison, N6JJA who discusses how to make an effective antenna noise canceller. You may recall the article by Andy, G0FVI in October’s RadCom which discussed the principles of antenna noise cancellation. Sheldon investigates exactly how the canceller should work, and his investigations have resulted in his superior design which you can construct for yourself. The third article, by Michael Toia, K3MT, is all about understanding the relationship between a train of square pulses and the harmonic content of its frequency spectrum, not with complicated mathematics, but by using an entirely diagrammatic approach. Those less familiar with mathematics might especially find this article helpful. This issue of RadCom Plus ends with Andy Nehan, G4HUE discussing the design of analogue power supplies. Members of the RSGB can access RadCom Plus via rsgb.org/radcom-plus

 And now for details of rallies and events

The Lincoln Short Wave Club Winter Radio Rally is taking place today, the 28^th, at The Festival Hall, Caistor Road, Market Rasen, LN8 3HT. The doors are open from 9 am and admission is £2. Ample free car parking and hot refreshments are available. The tables cost £10 each. At 2 pm, after the Rally, there will be a used equipment auction. Items for the auction will be booked in from 1 pm. Contact Steve, M5ZZZ for tables and details via m5zzz@outlook.com or 07777 699 069.

The Canvey Rally will be held on Sunday the 4^th of February at Cornelius Vermuyden School, Dinant Avenue, Canvey, Essex, SS8 9QS. The Rally is expected to be the usual hive of activity with plenty of traders on site. For more information contact Richard Stanley at 07725 551 263 or email g7oed@icloud.com 

The MIDCARS Radioactive Rally will be held on Sunday the 11^th of February at Nantwich Civic Hall, Market Street, Nantwich, CW5 5DG. The doors open at 10 am and admission is £5. There will be a wide variety of trader stalls covering every aspect of amateur radio. Raffles will be held throughout the Rally. Refreshments and snacks will be available in the hall, and parking is immediately adjacent to the venue.

 Now the Special Event News

The Radio Club of Haïti is on the air until the 31^st of January with special callsign HH220Y. The station is active to celebrate Haïti’s 220^th anniversary of independence. Operators are active on the 160 to 10m bands using CW, FT8 and SSB. QSL via N2OO.

Listen out for special event station TM21AAW which will be on the air from the 4^th to the 18^th of February 2024. The station is active to celebrate the 21^st Antarctic Activity Week. Activity will be on the 40 to 10m bands. QSL via F8DVD, directly or via the Bureau. For more information about Antarctic Activity Week, visit waponline.it  

 Now the DX news

Mathias, DL4MM will be active as P4/DL4MM and P40AA from Aruba, SA-036, until Wednesday the 31^st of January. He will operate CW, SSB and digital modes on the 160 to 10m bands. QSL via Club Log's OQRS, Logbook of the World, or via DL4MM.

Elvira, IV3FSG is active as ZD7Z from St. Helena, AF-022, until the 4^th of February. She is operating SSB, CW, RTTY, FT8 and FT4 on the 160 to 6m bands. QSL via Club Log's OQRS. Paper cards can be sent directly to IK2DUW

 Now the contest news

The CQ 160m DX Contest started at 2200UTC on Friday the 26^th and ends at 2200UTC today, the 28^th. Using CW on the 160m band, the exchange is signal report and CQ zone. American stations send their state and Canadian stations send their province.

The British Amateur Radio Teledata Group RTTY Sprint started at 1200UTC on Saturday the 27^th and ends at 1200UTC today, the 28^th. Using RTTY on the 80 to 10m bands, where contests are permitted, the exchange is serial number.

On Wednesday the 31^st, the UK and Ireland Contest Club 80m Contest runs from 2000 to 2100UTC. Using CW on the 80m band, the exchange is your six-character locator.

The UK Six Metre Group Winter Marathon began on Friday the 1^st of December 2023. The contest will run until the 31^st of January 2024. Using all modes on the 6m band, the exchange is signal report and locator.

On Sunday the 4^th of February, the 432MHz Affiliated Societies Contest runs from 0900 to 1300UTC. Using all modes on the 70cm band, the exchange is signal report, serial number and locator.

Now the radio propagation report, compiled by G0KYA, G3YLA, and G4BAO on Thursday the 25^th of January 2024

We dodged a bullet last week when a coronal mass ejection, or CME, was predicted to be heading our way. In the end, it came to nothing.

The CME observed on the 20^th of January was expected to pass Earth and deliver possible G2 storm conditions. But a solar wind enhancement, possibly associated with the plasma cloud passing near Earth, saw the Kp index rise to only 3.67 on Wednesday the 24^th.

The many solar flares, and associated coronal mass ejections, over the past few days make it difficult to give a reliable geomagnetic forecast. Over the past seven days, there have been more than 60 C-class and 18 M-class flares, typical for this point in the solar cycle. Sunspot-wise, the solar flux index has remained high, being more than 170 all week.

Critical frequencies have often exceeded 11MHz during daylight hours, which means the 30m band, as well as the 40m band, should be open around the UK. However, nighttime critical frequencies have fallen below 4MHz, meaning that even the 80m band struggles at times.

We mentioned last week that the NCDXF beacon VK6RBP in Australia had been heard on 28.200MHz. If you’ve copied VK6RBP you might be interested in trying for some other lower-power Australian beacons on the 10m band. Try listening for the 8W VK4LA/B on 28.206MHz in Brisbane, or perhaps the 10W VK4RST, which is 550km north-west of Brisbane, on 28.266MHz.

Next week, NOAA predicts the solar flux index will be in the range of 155 to 175. Geomagnetic conditions are forecast to be quiet, other than on the 29^th of January when the Kp index is predicted to rise to three. But, as always, keep an eye on solarham.net for a near real-time report.

And now the VHF and up propagation news from G3YLA and G4BAO

Today, the 28^th, sees the UK recovering from the two named storms and just getting settled into moving high pressure across northern France, with a second centre crossing central Britain early next week. This offers a chance of Tropo, especially in the south, while fronts continue to affect Scotland.

After the middle of the coming week, a more unsettled pattern returns with fronts crossing the country, which might bring some rain scatter for the GHz bands. But, in general, the picture remains unsettled into the end of the week and doesn’t look too exciting for the 432MHz Affiliated Societies Contest on Sunday the 4^th of February.

Other propagation modes that are worth considering are all relatively low-key in the transition into February. This means that meteor scatter is best looked for in the early pre-dawn period when random meteor activity peaks.

The other chance might be aurora, and this is simply about checking the behaviour of the Kp index, which measures the disturbance of the earth’s magnetic field by solar activity. Kp indices higher than six are a good sign for aurora. 

It looks like we are in a quiet period for Sporadic-E propagation.

For EME operators, Moon declination is positive and falling, going negative again on the 30^th. Path losses reach their maximum at apogee on Monday the 29^th, then start to fall again. 144MHz sky noise is low all week.

And that’s all from the propagation team this week.