RSGB GB2RS News Bulletin for 27th April 2025

 

GB2RS News

Sunday, the 27^th of April 2025

 

The news headlines:

• RSGB delegates attend special IARU Region 1 Interim Meeting in Paris
• Join the RSGB in celebrating World Morse Day
• Be part of the RSGB’s team at the Youngsters on the Air summer camp

The RSGB is participating in the International Amateur Radio Union Region 1 Interim Meeting in Paris this weekend. The event is of particular historical significance as it coincides with the centenary of the founding of the IARU in 1925, as well as the 75^th anniversary of the establishment of IARU Region 1 in 1950. The French host society, REF, is also marking its 100^th anniversary. This year’s meeting in Paris reflects a broader scope than in previous years and, for the first time, includes ‘Youth Matters’ on the agenda. It also covers the usual focus areas of HF, VHF, UHF and Microwave, as well as Electromagnetic Compatibility. The RSGB has been a key contributor to the meeting, submitting papers that include future options for the 23cm band and the harmonisation and protection of HF bands. Three delegates from the RSGB are attending the meeting in person, including the newly appointed RSGB President Bob Beebe, GU4YOX. There will be eight other RSGB representatives attending remotely. The meeting serves as both a celebration of amateur radio’s rich heritage and a forward-looking forum to address the challenges and opportunities facing the global amateur radio community. You can view meeting documents at conf.iaru-r1.org  In celebration of the centenary of the IARU the RSGB has created a web page to share information about its part in the celebrations. This includes a link to an RSGB archive video from the IARU meeting in Paris in 1950, as well as the RSGB’s July 1925 T & R Bulletin that contains an announcement detailing the formation of the IARU. Go to rsgb.org/iaru-centenary for further details.

Today, Sunday the 27^th of April, is World Morse Day. The day honours the birthday of the inventor of Morse code, Samuel Morse, who was born on this day in 1791. To celebrate the occasion, the RSGB has released a video with a question in Morse code for you to answer. Once you have used your Morse skills to decipher the question, get involved by leaving your answer in the comments section under the post. You can view the video on the RSGB YouTube channel via youtube.com/theRSGB or search for @theRSGB on Facebook or X.

The deadline to apply to be the Team Leader for this year's Youngsters On The Air Summer Camp is Friday, the 2^nd of May. This year's camp takes place between the 18^th and 25^th of August near Paris and is a chance of a lifetime for young RSGB members to represent their country and their national society. If you are an RSGB member, aged between 21 and 30, and are able to motivate a team of young people, then the RSGB would love to hear from you. Download an application form and apply for this exciting opportunity by going to rsgb.org/yota-camp.  Applications to be a Team Member will remain open until the 16^th of May.

The RSGB Exams Quality Manager would like to remind everyone that clubs can still run exams if they are a Registered Exam Centre. Exams will be conducted online unless a candidate has a special requirement for a paper exam. The introduction of remote invigilation to allow people to take an amateur radio licence exam in their home does not affect this. If clubs have any queries about delivering exams, they should contact the   RSGB Examinations Quality Manager, Dave Wilson, M0OBW, via eqam@rsgb.org.uk. If anyone has special requirements for an exam, they should contact the RSGB exams team via exams@rsgb.org.uk

As part of the IARU centenary celebrations, the RSGB has been activating callsign GB0IARU throughout April. On Wednesday, the 30^th of April, the RSGB President Bob Beebe, GU4YOX, will be activating GB0IARU from 2 pm on 40m SSB, and then from 5 pm on 80m SSB. Frequencies will be spotted on the day, and times may vary to suit propagation.

Please send details of all your news and events to radcom@rsgb.org.uk. The deadline for submissions is 10 am on Thursdays before the Sunday broadcast each week.

And now for details of rallies and events

The Dartmoor Radio Rally is taking place on Monday, the 5^th of May at the Yelverton War Memorial Hall, Meavy Lane, Yelverton, Devon, PL20 6AL. Free parking is available. There will be the usual Bring and Buy as well as trader stands and refreshments. Doors open at 10 am and admission is £3. For further details, please call Roger on 07854 088882 or email him via 2e0rph@gmail.com

RetrotechUK is taking place on Sunday, the 11^th of May at Sports Connexion, Leamington Road, Ryton-on-Dunsmore, Coventry, CV8 3FL. The annual event is organised by the British Vintage Wireless Society and will include nearly 200 stalls of dealers, clubs and private sellers. Doors open at 10.30 am and entry is £10. Early doors entry is available from 9 am for £25. Full details are available from Greg Hewitt via info@retrotechuk.com or by going to retrotechuk.com

Now the Special Event news

The Spanish national society, URE, is on the air to mark the 100^th anniversary of the IARU. Members are active on 160m to 6m until the 30^th of April with ten different special event stations, including AO100IARU. Special awards will be available, as well as medals for the top participants from each continent who achieve the highest number of contacts with the stations on different bands and modes. Go to ure.es  for further details.

The Amateur Radio Society of Moldova is operating special event station ER100IARU until Wednesday, the 30^th of April, in honour of the IARU centenary. Full details can be found via qrz.com

The Kuwait Amateur Radio Society is pleased to announce its participation in the IARU centennial celebrations. Members of the Society will be operating special event station 9K100IARU until Wednesday, the 30^th of April.

Now the DX news

Dom, 3D2USU is active again as 3D2AJT from Nadi in the Fiji Islands until the end of April. The call sign is in memory of JH1AJT, now a Silent Key. QSL via Club Log's OQRS and Logbook of The World.

Yuris, YL2GM plans to operate as ZS8W from Prince Edward and Marion Island, IOTA reference AF-021, until Friday, the 16^th of May. Yuris will be on Marion Island as a radio engineer and member of the SANAP station communication equipment maintenance team, and he hopes to find good periods of time to be operational. For further details, go to lral.lv/zs8w

 

Now the contest news

The UK and Ireland DX CW Contest started at 1200 UTC on Saturday, the 26^th of April and ends at 1200 UTC today, Sunda,y the 27^th of April. Using CW on the 80 to 10m bands, where contests are permitted, the exchange is signal report and serial number. UK and Ireland stations also send their district code.

The SP DX RTTY Contest started at 1200 UTC on Saturday, the 26^th of April, and ends at 1200 UTC today, Sunday, the 27^th of April. Using RTTY on the 80 to 10m bands, where contests are permitted, the exchange is signal report and serial number. SP stations also send their province code.

On Monday, the 28^th of April, the British Amateur Radio Teledata Group Sprint 75 Contest runs from 1700 to 2100 UTC. Using 75 baud RTTY on the 80 to 10m bands, where contests are permitted, the exchange is your serial number.

Also on Monday, the 28^th of April, the FT4 Series Contest runs from 1900 to 2030 UTC. Using FT4 on the 80 to 10m bands, where contests are permitted, the exchange is your report.

On Wednesday, the 30^th of April, the UK and Ireland Contest Club 80m Contest runs from 2000 to 2100 UTC. Using CW on the 80m band, the exchange is your six-character locator.

On Thursday, the 1^st of May, the 144MHz FT8 Activity four-hour Contest runs from 1700 to 2100 UTC. Using FT8 on the 2m band, the exchange is a report and the four-character locator. Also on Thursday, the 1^st of May, the 144MHz FT8 Activity two-hour Contest runs from 1900 to 2100 UTC. Using FT8 on the 2m band, the exchange is a report and the four-character locator. Stations entering the four-hour contest may also enter the two-hour contest.

On Saturday, the 3^rd of May, the 432MHz to 245GHz Contest starts at 1400 UTC and ends at 1400 UTC on Sunday, the 4^th of May. Using all modes on 432MHz to 245GHz frequencies, the exchange is signal report, serial number and locator.

The UK Six Metre Group’s Summer Marathon starts at 0000 UTC on Saturday, the 3^rd of May and ends at 2359 UTC on Sunday, the 3^rd of August. Using all modes on the 6m band, the exchange is your four-character locator.

The ARI International DX Contest starts at 1200 UTC on Saturday, the 3^rd of May and ends at 1159 UTC on Sunday, the 4^th of May. Using CW, RTTY and SSB on the 80 to 10m bands, where contests are permitted, the exchange is signal report and serial number. Italian stations also send their province.

The Worked All Britain 7MHz contest will take place on Sunday, the 4^th of May, from 1000 to 1400 UTC. All entries need to be with the contest manager by the 14^th of May. Please note that all Worked All Britain contests use SSB only. Full details of the contest rules can be found on the Worked All Britain website.

 

Now the radio propagation report, compiled by G0KYA, G3YLA and G4BAO on Thursday the 24^th of April 2025

We had yet another week of unsettled geomagnetic conditions. The Kp index peaked at 5.33 on the 21^st of April as the solar wind speed hit just above 600 kilometres per second, and active geomagnetic conditions were observed.

This was caused by a massive coronal hole on the Sun’s surface, which measures nearly 700,000km in length. At the time of writing, part of it is still Earth-facing, but the Bz or interplanetary magnetic field is facing North, so its negative effects are not being felt.

The Kp index was down to 3.67 on the morning of Thursday, the 24^th of April, but it wouldn’t take much for the Bz to swing southwards and for the Kp index to rise again.

Meanwhile, the solar flux index has risen from a recent low of 148 up to 168. This has meant MUFs over a 3,000km path have reached 25 MHz at times, but have usually been slightly lower. If the Kp index can stay low, there is a good chance of higher MUFs being attainable, but we have probably seen the best of 10m propagation until the autumn.

Much of the recent DX has been worked on slightly lower frequencies, such as VP2VI British Virgin Islands on 40 and 20m, C5R The Gambia on 20 and 12m, and HD8G Galapagos Islands on 20, 17, and 12m. There is still the chance of DX on 10m, but it may be fleeting.

Next week, NOAA predicts that the solar flux index will stay high, perhaps reaching 170 to 175. We may get a slight respite from unsettled geomagnetic conditions from the 26^th to the 30^th of April, when the Kp index is forecast to be around two to three. However, unsettled geomagnetic conditions are forecast for the beginning of next month, with Kp indices of five or six on the 1^st and 2^nd of May.

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

Next week, high pressure should dominate, meaning a chance of Tropo for much of the time which will probably favour paths to the east, to Scandinavia or northern Europe. 

Rain scatter won’t have featured much other than over northwest Britain in recent days, and meteor scatter is reducing back to random activity, which tends to be better in the early hours before dawn.

The solar conditions have continued to keep the Kp index up, and there was a fine auroral opening last week on the 16^th of April, so for more aurora, it’s still worth checking for when Kp values nudge above five.

As the end of April moves into May, we can start to give serious thought to the coming Sporadic-E season. Hesitant beginnings often show up on 10m and 6m, and, as usual, the digital modes will be best for any weak events. CW and SSB are just possible in the stronger openings, especially on 10m. 

The background rule is that there are usually two preferred activity periods, one in the morning and a second in late afternoon and early evening. However, at the start of the season, there can be a lot of spread in the timings.

EME path losses are at their lowest with perigee today, Sunday the 27^th, and the Moon declination is positive and rising. Moon windows will lengthen along with peak elevation, and 144MHz sky noise starts the week low but increases to moderate as the week progresses. From late Sunday to early Monday, the Sun and Moon are close.

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