GB2RS News

Sunday the 10th of March 2024

The news headlines:

• New rules for HF contests are in place
• Applications are open for this year’s YOTA camp
• Listen out for operators taking part in British Science Week

The RSGB HF Contest Committee has introduced a couple of rules to address changes in licence conditions that came into effect on the 21st of February. It has also highlighted power changes to specific contests. The committee is introducing a section for Foundation licensees in some of its contests now that the power limit is increased to 25W. Before finalising the rules for 2025, the committee will consult widely on whether Regional Secondary Locators should remain mandatory in those contests for which the country in which the operator is situated has no bearing on the score. For more details see the RSGB Notices section on the RSGB website.

Are you aged between 18 and 25 and passionate about all things radio? Are you ready for exciting experiences, making new friends and shaping the future of amateur radio? Why not apply to be part of the RSGB YOTA team going to the YOTA Czechia summer camp this year? You can find out more on the RSGB website. Go to rsgb.org/yota and click on the ‘YOTA Summer camps’ link in the righthand menu. You’ll be able to read about the experiences of previous teams and download an application form for the Czechia event. The closing date for applications is the 15th of April for the Team Leader and the 22nd April for Team Members.

British Science Week started on Friday the 8th of March and continues until Friday the 17th of March. Please have a look at the list of times that participants will be on the air and try to respond to them. These will nearly all be students who will be making their very first QSOs working with local amateurs. Your contact will make their day and might lead to new radio amateurs! For those participating in British Science Week with stations, remember the offer for skeds from GB3RS at the RSGB National Radio Centre. To find out more, go to rsgb.org/bsw and choose the ‘List of events’ tab on that web page. If you’d like to show what you’re doing during the week, email comms@rsgb.org.uk and the RSGB Comms Team will share your photos on social media. Whether or not you’re involved with this year’s British Science Week, it’s time to think ahead to next year’s event! Make contact with your local school or youth group and use the activity suggestions and resources on the RSGB British Science Week web page.

The Edinburgh 23cm microwave beacon GB3EDN is back on the air after a move to a new location on the south side of Edinburgh. It has moved about 1.5km south from its previous site in the University of Edinburgh, King’s Buildings Campus. The operating frequency is 1296.990MHz. It sends its callsign and QRA locator in both FSK and JT4 once per minute. The new site is about 200m higher than the previous site and it is hoped that coverage is somewhat improved. It has a clear view from the northwest through to the east, giving good coverage up the east coast and across the North Sea to Scandinavia. It is also hoped that there will be better propagation to the south from the new site. More details are available via the ‘Beacons’ link on the Lothians Radio Society’s website at lothiansradiosociety.com

And now for details of rallies and events

The Hack Green Radio Surplus Hangar Sale is taking place today, the 10th. The venue is Hack Green Secret Nuclear Bunker, Nantwich, Cheshire, CW5 8AL. The event includes the sale of electronic equipment, amateur gear, components, military radio items and vehicle spares. For more information email coldwar@hackgreen.co.uk  or visit hackgreen.co.uk

Callington Radio and Electronics Rally will take place on Sunday the 17th of March. The rally will be held in the Town Hall, New Road, Callington, Cornwall, PL17 7BD. The doors will be open from 10 am. Entry will be £2 each but there will be no charge for those under the age of 16. A comprehensive selection of traders, clubs and societies will be present along with a bring-and-buy stall and the usual catering service. The venue has excellent disabled access, toilets, and there is ample car parking nearby. More details, including a list of items currently registered for sale at the huge bring-and-buy stand, are available at callingtonradiosociety.org.uk

Grantham Amateur Radio Club Radio and Electronics Rally will be held on Sunday the 17th of March. The venue will be Grantham West Community Centre, Trent Road, Grantham, Lincolnshire. The doors will be open from 9 am to 1.30 pm and entry for buyers will be £3. Those under the age of 16 will be admitted for free. There is a cost of £5 per table for sellers. Traders must book and pay in advance. The event will feature an RSGB book stall, hot and cold refreshments and a prize raffle. Ample free parking will be available. To reserve tables, contact rally@garc.org.uk  For more information visit garc.org.uk/rally

Pencoed and District Amateur Radio Club Radio Rally will take place on Sunday the 17th of March. The venue will be Sarn and Bryncwils Social Club, Sarn, Bridgend, CF32 9NY. Doors open for traders at 8 am and tables cost £15. The entrance fee will be £2 but there will be no charge for those under the age of 16. Doors open to the public at 10 am and refreshments will be available. Disabled access is available via a chair lift. To book your tables please contact Leuan Jones at 07791 709 691.

Now the Special Event News

In celebration of International Women’s Day, special callsign TM88YL will be active from France until the 15th of March and, simultaneously, DM88YLF will be operating from Germany. QSL via the Bureau. For more information, visit QRZ.com

Special callsign IY9MM is active until the 31st of March to commemorate the experiments conducted by Guglielmo Marconi from the ship 'Regina Elena' in the port of Augusta in 1914. QSL via Logbook of the World, eQSL, or direct to IT9MRM. The station was recently spotted on the 40m band using FT8.

Now the DX news

Eric, F6ICX is active as 5R8IC from Sainte Marie Island, AF-090, until the 31st of March. He operates mainly using CW on the 40 to 10m bands and via the QO-100 satellite. QSL via Logbook of the World or his home call.

Peter, DC0KK is active as 4S7KKG from Sri Lanka, AS-003, until the 30th of March. He operates FT8, FT4, RTTY and sometimes CW on the 20 to 6m bands. QSL via Logbook of the World, Club Log's OQRS, or direct to his home call.

Now the contest news

The Commonwealth Contest started at 1000UTC on Saturday the 9th of March and ends at 1000UTC today, Sunday the 10th of March. Using CW on the 80 to 10m bands, where contests are permitted, the exchange is signal report and serial number. HQ stations also send ‘HQ’.

On Tuesday the 12th, the 432MHz FM Activity Contest runs between 1900 to 1955UTC. Using FM on the 70cm band, the exchange is signal report, serial number and locator.

Also on Tuesday the 12th, the 432MHz UK Activity Contest runs from 2000 to 2230UTC. Using all modes on the 70cm band, the exchange is signal report, serial number and locator.

On Wednesday the 13th, the 432MHz FT8 Activity four-hour Contest runs from 1700 to 2100UTC. Using FT8 on the 70m band, the exchange is a report and four-character locator. Also on Wednesday the 13th, the 432MHz FT8 Activity two-hour Contest runs from 1900 to 2100UTC. Using FT8 on the 70cm band, the exchange is a report and four-character locator. Stations entering the four-hour contest may also enter the two-hour contest.

On Wednesday the 13th, the 80m Club Championship Contest runs from 2000 to 2130UTC. Using CW on the 80m band, the exchange is signal report and serial number.

On Thursday the 14th, the 50MHz UK Activity Contest runs from 2000 to 2230UTC. Using all modes on the 6m band, the exchange is signal report, serial number and locator.

The British Amateur Radio Teledata Group HF RTTY Contest starts at 0200UTC on Saturday the 16th and ends at 0200UTC on Monday the 18th. Using RTTY on the 80 to 10m bands, where contests are permitted, the exchange is signal report, serial number and locator.

Now the radio propagation report, compiled by G0KYA, G3YLA, and G4BAO on Thursday the 7th of March 2024

As predicted, a coronal mass ejection, or CME for short, affected the ionosphere last weekend, the 2nd and 3rd of March, pushing maximum usable frequencies down and sparking auroral displays that were visible as far south as Cornwall.

The plasma hit the Earth around midday on Sunday the 3rd, eventually pushing the Kp index to more than 5 for nine hours. It eventually started to settle again, dropping to 4 for six hours, before then moving back to background levels by the morning of the 4th.

The solar wind speed was not that high, being around 350 kilometres per second, but the Bz component of the interplanetary magnetic field, or IMF, was pointing sharply south for a long period. This allowed the solar plasma to couple with the Earth’s magnetic field more easily, and it flooded in.

The maximum usable frequency was impacted, and it took until late morning on the 4th  before the 10m band was usable again over a 3,000km path. This probably impacted northerly paths the most with southerly paths being relatively unscathed.

The rest of the week was generally free from coronal mass ejection chaos with the Kp index remaining below 3.

Attention is now turning to active region 3599, which has expanded in size. It may therefore be a threat for an M-class solar flare and potential CME.

Next week, commencing Monday the 11th, NOAA predicts that the solar flux index will be around 135, but may then increase to 170 by the 15th.

We are heading towards the equinox, which means that geomagnetic disturbances are likely to be more common and harsher. They are almost twice as likely in spring and autumn versus the winter and summer.

If the Kp index stays low, though, this can be a good time for HF.

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

This weekend, the 9th and 10th, a strengthening southeasterly wind will develop over the country as low pressure moves into Biscay and a strong high builds over Scandinavia. Unfortunately, this may not be useful for Tropo since the high is a long way to the northeast and stronger winds usually prohibit the development of a quality inversion.

All this changes again over this second weekend of March, the 9th and 10th, as low pressure pushes fronts into southern Britain. It won’t last long though and a weak ridge will cross the country on Tuesday the 12th, which may bring some Tropo support for southeastern Britain into the continent for the 432MHz UK Activity Contest on Tuesday evening.

On Wednesday, an Atlantic low will cross northern areas with rain and possible rain scatter options, but this will soon clear to leave a weak high over the country and it’s a return to Tropo conditions for the remainder of the week.

The upshot of all this is that Tropo will be an off-and-on affair, but worth a look. The other modes, not so much. Although, as we said in the HF section, spring is a good time of the year for auroral activity and, after the recent visible aurora, we should keep a watch for activity and a high Kp index.

There has been the odd fleeting pulse of Sporadic-E showing on the Propquest graphs recently. This has been noticeable on the LF bands sometimes but is not yet a big player for the usual Sporadic-E bands of 10m, 6m and beyond. However, on digital modes, UK stations have seen 50MHz trans-equatorial propagation, or TEP, to Africa last week – so check for that.

For EME operators, Moon declination is still negative but goes positive again on Monday. Path losses are approaching minimum with perigee today, Sunday the 10th. 144MHz sky noise is low all week except today, the 10th, when the Sun is close to the Moon and in the beamwidth of antennas.

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