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Show Notes
GB2RS News
Sunday, the 21st of December 2025
The news headlines:
- A British Science Week opportunity not to be missed
- Could you be the new RSGB Honorary Skills and Career Development Officer?
- Challenge yourself with the RSGB Construction Competition
The RSGB is giving away 400 FM radio receiver kits and Morse code tutor kits as part of its British Science Week 2026 activities. The kits are available for school, university, Scout, Girlguiding, and Cadet groups, as well as other youth-related Science, Technology, Engineering, and Mathematics groups. The project is being delivered thanks to a partnership between the RSGB Outreach Team, the Radio Communications Foundation and the RSGB Legacy Fund. To get involved, simply complete a form available at rsgb.org/bsw. If you need support, the RSGB can put you in touch with local radio amateurs who can assist. In exchange for the free kits, you’ll need to send a brief report and photos that the Society can share afterwards to celebrate the activity and inspire other groups to try amateur radio. Don’t miss out on this opportunity to share amateur radio with the next generation.
The RSGB is looking for a volunteer Honorary Skills and Career Development Officer. One of the main responsibilities will be to build a team to engage with early-career engineers, as well as those making a career transition, in order to encourage them to use amateur radio to develop their skills and knowledge. As part of this engagement, the Society would like the new team to design and deliver learning material and courses at a level both just beyond and significantly beyond the Full Licence. Go to rsgb.org/volunteers for the full role description.
Keep yourself busy over the Christmas holidays by getting involved with the RSGB Construction Competition. There are seven categories to enter, including ‘Beginners’ and ‘Software’, which is for designs that recognise the importance of software technology to all aspects of amateur radio. A £150 cash prize will be awarded to the winner of each category, with a £50 cash prize for the runner-up. Find out more about the other categories and details of how to enter at rsgb.org/construction-competition
The RSGB is releasing more presentations from its recent Convention. The lectures range in topics from Polar modulation to engaging young people with amateur radio. Four further presentations will be released over the festive season. To make sure you are the first to receive notifications when they’re available, click the subscribe button on the Society’s YouTube channel at youtube.com/thersgb
Young operators continue to host the special callsign GB25YOTA for Youngsters on the Air Month. Cambridge University Wireless Society is active today, Sunday the 21st of December and then tomorrow, Monday the 22nd of December, Jack, M7OFM, will be operating under the supervision of Pete, M0OFM. Jack will also be on the air on Christmas Day between 10 am and 12 pm, so ensure you listen out and make a seasonal QSO with him. View the operating times, bands and modes at rsgb.org/yota-month
The RSGB would like to thank Dr Harry Squance, GI4JTF, who has retired after volunteering for 25 years as a QSL Bureau sub-manager. Most recently, Harry was the GI/MI/2I QSL sub-manager, and those callsigns will now be covered by Lindsay Pennell, GI3KME. All stamped addressed envelopes and any outstanding QSL cards will be transferred to Lindsay, but RSGB members in Northern Ireland who collect cards should, in future, send stamped addressed envelopes directly to Lindsay. The list of QSL Sub-managers at rsgb.org/qsl has been updated to reflect the changes.
On the 1st of December 1924, the 200kW Alexanderson alternator, with the callsign SAQ, was put into commercial operation with telegram traffic from Sweden to the United States. 101 years later, it is the only remaining electro-mechanical transmitter from this era and is still in running condition. At 0800UTC on Christmas Eve, the transmitter is scheduled to broadcast its traditional Christmas message using CW on 17.2kHz. Find out more by visiting tinyurl.com/SAQ25
Please send details of all your news and events to [email protected]. The deadline for submissions for the GB2RS News on Sunday, the 28th of December, is 10 am on Tuesday, the 23rd of December. Please note there will be no GB2RS broadcast on Sunday, the 4th of January 2026, but many newsreaders will be holding informal nets in their usual broadcasting slots.
And now for details of rallies and events
Sparkford Radio Rally is due to take place on Sunday, the 28th of December at Davis Hall, Howell Hill, West Camel, near Yeovil, BA22 7QX. The doors will be open from 9.30 am, and admission will cost £2. Refreshments and free parking will be available on site. For more details, contact Luke on 07870 168 197 or email [email protected]
On the 25th of January 2026, Lincoln Short Wave Club Winter Radio Rally will be held at Festival Hall, Caistor Road, Market Rasen, LN8 3HT. This is an indoor event with ample free parking. The doors will be open from 10 am, and admission is £3. Tables cost £10. To book tables, or for more information, contact Steve, M5ZZZ on 0777 7699 069 or email [email protected]
Now the Special Event news
The Rugby Amateur Transmitting Society will be using special callsign GB100GBR from the 1st to the 4th of January to celebrate the centenary of the first CW transmissions from the GBR transmitter at Rugby Radio Station. Operators will begin transmitting from the historic site at 1200UTC on the 1st of January, the same time as the original station 100 years earlier in 1926. Listen for activity on the HF bands using CW, FT8 and SSB. More information about the station is available at QRZ.com
Simeon, M0VOB in Bradford, West Yorkshire, is running special event callsign GB54NTA until Monday, the 5th of January. The station is active on the HF, 2m and 70cm bands. Recently, the station was worked on the 40m band using FT8. All QSOs will be logged and confirmed via QRZ.com
Now the DX news
Roland, F8EN, is active as TR8CR from Gabon until the 25th of December. He operates CW only. QSL via F6AJA. For more information, visit QRZ.com
George, VU2DGR, is using the AT44I callsign from Bharati Research Station until the 31st of December. He is a member of the 44th Indian Scientific Expedition to Antarctica. The station is often worked using FT8 on the 20m band. QSL via George’s home call.
Now the contest news
On Friday, the 26th of December, the DARC Christmas Contest runs from 0830 to 1100 UTC. Using CW and SSB on the 80 and 40m bands, the exchange is signal report and serial number.
The Worked All Britain Christmas Party starts on Friday, the 26th of December and ends on Tuesday, the 6th of January 2026. Using all modes on all bands, the exchange is your Worked All Britain book number.
On Saturday, the 27th of December, the RSGB 50MHz Christmas Contest runs from 1500 to 1700 UTC. Using all modes on the 6m band, the exchange is signal report, serial number and locator.
The Stew Perry Topband Challenge starts at 1500UTC on Saturday, the 27th of December and ends at 1500 UTC on Sunday, the 28th of December. Using CW on the 160m band, the exchange is your four-character locator.
On Sunday, the 28th of December, the RSGB 70MHz Christmas Contest runs from 1500 to 1700 UTC. Using all modes on the 4m band, the exchange is signal report, serial number and locator.
Now the radio propagation report, compiled by G0KYA, G3YLA and G4BAO on Thursday the 18th of December 2025
Last week, we suffered from the double whammy of a reduced solar flux index and an increased Kp index.
The solar flux index went down to 119 by Thursday, the 18th, with the sunspots looking pretty spartan when compared with just a week or so ago. Unfortunately, a coronal hole contributed to a fast solar wind with a south-pointing interplanetary magnetic field or Bz. The net result was a Kp index of 5 and a minor G1 geomagnetic storm.
Nevertheless, the maximum usable frequencies, or MUFs, over a 3,000km path mostly remained above 28MHz, at least during daylight hours, and there was DX to be worked.
As it's Christmas, let’s focus on special calls for the season. YR0XMAS in Romania has been worked on the 20m band using CW and will be active until the end of the month.
A little further afield is the 12 Days of Christmas event in the US. It runs until Christmas Day with 12 three-letter callsigns in the W2 and K2 series. You only have to work one to get a certificate, so it should be possible for most amateurs. If you are lucky enough to work all 12, plus a bonus station in Puerto Rico, you can get a special ‘Clean Sweep Plus’ endorsement. W2S has already been spotted in the UK, and more details are available by Googling ‘12 days of Christmas ham radio’.
Next week, we have another large coronal hole to contend with, which NOAA predicts may push the Kp index to 5 between the 22nd and 26th of December. The good news is that the solar flux index may increase over the same period, perhaps up to 180 by the 28th of December.
Make the most of the low bands as we hit the winter solstice, with its long periods of darkness. And certainly check 14 to 28MHz during daylight hours.
And now the VHF and up propagation news from G3YLA and G4BAO
The tail end of the previous week ended on a dramatically mild, wet and windy note, with heavy rain and gales in places. It might be good for the earth, but little else springs to mind other than some chance rain scatter for the GHz folk. The main feature of this Christmas propagation report is that we have a major change becoming established after this weekend.
This change takes the form of swapping out the mild Atlantic pattern for a blocked, cold easterly flow with high pressure parked to the north of the British Isles near the Faroe Islands.
If this takes place as suggested by some of the models, then a much colder easterly wind will remain with us for much of the Christmas week. The strength of the high means that the flow is only likely to produce shallow cloud, barely enough for an isolated wintry flurry on the east coast of England.
Lighter winds over northern Britain, closer to the high, will possibly allow some tropo, but it is not convincing in view of the shallow dry layer below the inversion. It will mean some sharp frosts are possible where skies clear.
Long dark winter nights are potentially good for seeing meteors, and it is worth mentioning two showers this time. The first is the Ursids, which peak around the 22nd and 23rd of December. The second shower to be aware of is the Quadrantids, which peaks on the 3rd and 4th of January. This is a much larger shower than the Ursids, so maybe the one to focus on for radio activity.
Aurora remains on the list, especially in view of the large coronal hole recently. As ever, keep an eye on the Kp index for high values, but it is even better to note conditions on the LF bands for signs of ‘watery’ sounding signals.
The Sporadic-E folklore often speaks of isolated mid-winter events, and, in view of the two meteor showers adding fuel and there being some useful jet streams, it is certainly worth mentioning. Using the jet stream over the Pyrenees for paths to Spain early this week is a good place to start.
For EME operators, Moon declination is rising again, and path losses are decreasing. We are past apogee for the month, the point where the Moon is farthest from the Earth. 144MHz sky noise is also reducing again after reaching a peak yesterday, the 20th of December.
And that’s all from the propagation team this week.