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GB2RS News
Sunday the 11th of February 2024
The news headlines:
The RSGB has announced the outcome of its 2024 Board and Regional Team election process. These results come into force at the RSGB 2024 AGM and, until that time, the current Regional Representatives remain in their roles. The announcement also contains news of the Nominated Directors put forward for endorsement by the RSGB membership next month, as well as two co-options to the RSGB Board, effective until the AGM. For full details of the announcement and the candidates go to the RSGB AGM web page at rsgb.org/agm
The theme of British Science Week this year is Time. Both time and the closely related concept of frequency, are of vital importance to radio communications. The RSGB has announced a new challenge for British Science Week linked to this theme. The challenge has categories for every age group and the winner of each group will win a prize. The deadline for entries is the 1st of September and the results will be announced at the RSGB Convention in October. The challenge is as follows: “Using readily available components, material or other resources, provide a method of either measuring the frequency of a radio frequency source or signal or providing a time reference to a radio operator or radio system”. For more details about the challenge, as well as activities to inspire you and resources to help you take part in British Science Week, go to the RSGB website at rsgb.org/bsw
A busy year has seen several online Spectrum Forum meetings. Two meetings held in January considered the Ofcom notice period for ‘representations’ and areas where band plan adjustments would be needed, as well as more regular items such as annual group reports.
The RSGB website now has these details online. The RSGB’s reply to Ofcom has been added to its special focus page on the Ofcom licence review. Along with other recent representations, this will enable Ofcom to finalise the new licence later this month. The RSGB Spectrum Forum pages have also been updated with the January 2024 group reports and meeting notes, which included the discussions on the provisional changes. To read more, visit rsgb.org/spectrumforum
As previously announced by the RSGB Examinations Standards Committee Chair, Tony Kent, G8PBH, the amateur radio licence examinations will need to change to reflect the changes to the licence conditions announced by Ofcom. The scale of the licence changes will have a significant impact on Section 1 of the syllabus, ‘Licensing’, and a small impact on Section 7, ‘Operating’. Ofcom is currently reviewing representations and will publish its final decision, including the final version of the licence, before the 21st of February. The new licence will come into effect before work on the syllabus and examination question bank is completed. The RSGB Examinations Standards Committee has gained approval from Ofcom to continue to examine the current licence conditions for a period of six months following the publication of the new licence. This will allow trainers time to update their courses in line with the new syllabus, and allow candidates that have started their training under the current licence conditions to complete their courses and take the exam. It is expected that examinations of the new licence conditions will begin on the 1st of September 2024. For full details, see the exam announcements page on the RSGB website.
The first amateur radio station on the moon, JS1YMG, is now transmitting. The Japan Aerospace Exploration Agency, or JAXA, landed its Smart Lander for Investigating the Moon on the 19th of January 2024. The JAXA Ham Radio Club, JQ1ZVI secured the JS1YMG callsign and has been transmitting Morse code on 437.41MHz since the 19th of January. The probe uses 1W to a UHF antenna, with circular polarisation, and is transmitting what is described as "matters related to amateur business." Radio amateurs have been busy analysing JS1YMG's signal. You can read more about this story on Daniel Estévez, EA4GPZ’s blog at destevez.net
The RadCom team is looking for authors who are interested in antennas. So, if you are passionate about the theory, design and construction of antennas, and would like to contribute to the magazine, please email [email protected]
And now for details of rallies and events
The MIDCARS Radioactive Rally is being held today, the 11th, 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.
The British Vintage Wireless Society Biggleswade Swapmeet and AGM will take place on Sunday the 25th of February. The venue will be The Weatherley Centre, Eagle Farm Road, Biggleswade, Bedfordshire, SG18 8JH. A bring-and-buy stall will be available with a 10% commission on sales going to the British Vintage Wireless and Television Museum. Stallholders can gain entry from 9 am. The doors open to the public from 9.30 am and admission will be £8. For more information visit BVWS.org.uk or email [email protected]
The Red Rose Winter Rally will take place on Sunday the 25th of February. The venue will be St Joseph’s Hall, Mather Lane, Leigh, WN7 2PJ. Access for exhibitors will be available from 8.30 am and the event will be open to the public from 10 am. Hot and cold refreshments will be available. Further details can be found via West Manchester Radio Club’s website at wmrc.co.uk Send enquiries to Les, G4HZJ via [email protected] or phone 07796 264 569.
Now the Special Event News
In celebration of World Radio Day, a special callsign AO100RADIO will be on the air from Spain until the 29th of February. For more information see QRZ.com
The Royal Netherlands Army Signal Regiment is celebrating its 150th anniversary on the 14th and 15th of February. Cadets, servicemen, amateurs and veterans will be on the air for 36 hours with all kinds of historical and in-service radios. Operators will be using the callsign PI4VBD on all bands using SSB and CW.
Special event station OL80CLAY will be active from the 12th of February to the 30th of June 2024 from near Prague. Operation Clay took place 80 years ago and was a cover name for an operation executed during World War II in the Protectorate of Bohemia and Moravia by Czech paratroopers trained in England. Their task was to gather intelligence data from Northeast Moravia, send it to London by radio, and cooperate with the local resistance groups. The station will be active on all radio amateur bands. CW will be the main mode of operation, but there will also be activity on SSB, FM and possibly digital modes. Every first QSO will be answered by a special QSL card sent via the Bureau. SWL reports sent via the Bureau to OK2PXJ, or via email, will also be acknowledged. For more information see QRZ.com
Now the DX news
Francis, F6BWJ is active as FM/F6BWJ from Martinique, NA-107, until the 11th of March. He will operate CW on the 80 to 10m bands. QSL via Logbook of the World or via the Bureau to his home call.
Gerard, F2JD is active as HR5/F2JD from Copan, Honduras until the 21st of March 2024. He will operate CW, SSB, FT8 and FT4 on the HF bands. QSL via F6AJA, directly or via the Bureau.
Now the contest news
On Tuesday the 13th, the 432MHz FM Activity Contest runs from 1900 to 1955UTC. Using FM on the 70cm band, the exchange is signal report, serial number and locator.
Also, on Tuesday the 13th, 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 14th, the 80m Club Championship runs from 2000 to 2130UTC. Using PSK63 and RTTY on the 80m band, the exchange is signal report and serial number.
On Wednesday the 14th, the 432MHz FT8 Activity four-hour Contest runs from 1700 to 2100UTC. Using FT8 on the 70cm band, the exchange is a report and four-character locator. Also, on Wednesday the 14th, 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 Thursday the 15th, the 50MHz UK Activity Contest runs from 2000 to 2230UTC. Using all modes on the 6m band, the exchange is signal report and serial number.
The CQ Worldwide WPX RTTY Contest started at 0000UTC on Saturday the 10th and ends at 2359UTC today, the 11th. Using RTTY on the 80 to 10m bands, where contests are permitted, the exchange is signal report and serial number.
The PACC Contest started at 1200UTC on Saturday the 10th and ends at 1200UTC today, the 11th. Using CW and SSB on the 160 to 10m bands, where contests are permitted, the exchange is signal report and serial number. Dutch stations send their province.
The ARRL International DX Contest starts at 0000UTC on Saturday the 17th of February and ends at 2359UTC on Sunday the 18th of February. Using CW on the 160 to 10m bands, where contests are permitted, the exchange is signal report and transmitter power. American stations send their state and Canadian stations send their province.
Now the radio propagation report, compiled by G0KYA, G3YLA, and G4BAO on Thursday the 8th of February 2024
A large sunspot region has been turning into an Earth-facing position and now looks like it could be threatening. Active region 3576 has already emitted a couple of low-class solar flares but could be poised for even more.
An M5.1 solar flare was detected around region 3575 on the 7th of February as well. Updated imagery shows that an associated coronal mass ejection, or CME, was likely however, due to the location near the Sun’s south-west limb, it was directed mostly away from Earth.
The solar flux index remained high this week, hitting 190 on the 6th before dropping to 188 on the 8th. Geomagnetically, the Sun has been behaving itself with a maximum Kp index of only three on Sunday the 4th.
But all eyes will be on active region 3576 next week as it could upset the apple cart.
Meanwhile, daylight maximum usable frequencies over a 3,000km path remain more than 28MHz, which is good for HF.
Next week, NOAA predicts that the solar flux index may decline to be in the range of 160 to 170. Geomagnetic conditions are also predicted to be settled with a low Kp index. However, as we said earlier, that could all change if we have a violent solar flare and associated coronal mass ejection from region 3576 or any of the many other sunspots.
And now the VHF and up propagation news from G3YLA and G4BAO
Unsettled weather describes the pattern for the coming week, including some colder weather mixed in to provide snowfall for some areas, particularly in northern areas. This characteristic weather type will mean little chance of Tropo during the period.
Other propagation modes of interest might be even harder to find unless you are thinking of rain scatter, which could be useful for a few suitably-equipped stations on the GHz bands. Other modes, such as meteor scatter or aurora, are also looking a bit thin. There is always the chance of some random activity, unlike Sporadic-E which is in its late winter lull that usually lasts until April for the 10 and 6m bands.
For EME operators, Moon declination is negative and rising, going positive on Monday the 12th. So there will be higher peak Moon elevations and longer Moon windows throughout the week. Path losses were at their lowest at perigee on Saturday the 10th.
144MHz Sky noise is moderate to low.
And that’s all from the propagation team this week.
GB2RS News
Sunday the 4th of February 2024
The news headlines:
The RSGB is collecting resources to help you get involved with British Science Week, which runs from the 8th to the 17th of March. The theme this year is ‘Time’. If you have any resources and are willing to share them, please send them in. The RSGB has provided some already, including an example risk assessment and some lesson plans. You can also get advice about how to contact your local school or college to offer help. The Society would like to add to its resource base, so please share your ideas. If you already have an event planned, please let the RSGB know. This will be useful for others to see. Let the RSGB know whatever you’re planning so it can be added to the web page. If you’re going on the air, tell everyone when to listen out for you by sending dates, times, bands and modes. Send your information to the RSGB British Science Week Coordinator Ian Neal, M0KEO at [email protected] and to see all the resources go to rsgb.org/bsw
The RSGB’s next Tonight@8 live webinar is this Monday, the 5th of February. Gwyn Griffiths, G3ZIL will be giving a presentation called “Propagation at HF: What can we learn using digital modes WSPR and FST4W?” Gwyn is an associate member of the RSGB Propagation Studies Committee and will present some new and exciting research. You can watch and ask questions live on the RSGB YouTube channel and special BATC channel. For more information about the presentation go to the RSGB website at rsgb.org/webinars
Do you live in RSGB Region 5? Region 5 covers the West Midlands area of England, from Staffordshire to the Welsh borders and down to Gloucestershire. The RSGB is looking for three volunteers to take up the roles of DR52 for Central and East Birmingham; DR53 for Shropshire, North Worcestershire and West Birmingham; and DR54 for Gloucestershire, Hereford and South Worcestershire. If you live in one of those areas and would like to promote amateur radio and support the local amateur radio community, please get in touch with the Regional Representative Neil Yorke, M0NKE via [email protected] – he will be delighted to hear from you!
The RadCom team is looking for a VHF/UHF columnist. James Stevens, M0JCQ has recently retired from this role following the birth of another child. The RSGB thanks James for his work on the column and wishes him well for the future. If you are interested in this opportunity to contribute to RadCom, please email [email protected]
HamCation is one of the world’s largest annual gatherings of radio amateurs. This year it starts in Orlando, Florida on Friday the 9th and runs until Sunday the 11th of February. The event’s website contains lots of information including details of forums, speakers, prizes and a special event station. You can read all about it via hamcation.com
And now for details of rallies and events
The Canvey Rally is being held today, Sunday the 4th of February, at Cornelius Vermuyden School, Dinant Avenue, Canvey, Essex, SS8 9QS. For more information contact Richard Stanley at 07725 551 263 or email [email protected]
The MIDCARS Radioactive Rally will be held on Sunday the 11th 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.
The Red Rose Winter Rally will take place on Sunday the 25th of February. The venue will be St Joseph’s Hall, Mather Lane, Leigh, WN7 2PJ. Access for exhibitors will be from 8.30 am. The event will be open to the public from 10 am. Hot and cold refreshments will be available. Further details can be found via the West Manchester Radio Club’s website at wmrc.co.uk Send enquiries to Les, G4HZJ via [email protected] or phone 07796 264 569.
Now the Special Event News
Today, the 4th, is the last chance to work the special call sign TM26PVJ. The station is active, on the HF bands, for the 26th festival celebrating the ‘Opening of the Yellow Wine’. This year, the festival is taking place at Arbois in the Jura region of France. QSL via F8GGZ.
VI100MB is the special call sign for the Manly-Warringah Radio Society, VK2MB, in Australia, to celebrate the 100th anniversary of its formation. The station is active until the 25th of February. QSL via Logbook of the World and eQSL.
Now the DX news
Keith, G3WRO is active as 8Q7WR from the Maldives, AS-013, until the 6th of February. He is operating SSB on the 40 to 10m bands, and possibly also on the 80m band. QSL via Keith’s home call.
Michel, F5LRL is active as CN2DX from near Kenitra, Morocco until the 10th of February. He will operate CW and SSB on the 40 to 10m bands. He is also using FT8 on the 6m band. QSL via EA5GL.
Now the contest news
Today, the 4th, 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.
On Monday the 5th, the 80m Club Championship runs from 2000 to 2130UTC. Using SSB on the 80m band, the exchange is signal report and serial number.
On Tuesday the 6th, the 144MHz FM Activity Contest runs from 1900 to 1955UTC. Using FM on the 2m band, the exchange is signal report, serial number and locator.
Also on Tuesday the 6th, the 144MHz UK Activity Contest runs from 2000 to 2230UTC. Using all modes on the 2m band, the exchange is signal report, serial number and locator.
On Wednesday the 7th, the 144MHz FT8 Activity four-hour Contest runs from 1700 to 2100UTC. Using FT8 on the 2m band, the exchange is a report and four-character locator. Also on Wednesday the 7th, the 144MHz FT8 Activity two-hour Contest runs from 1900 to 2100UTC. Using FT8 on the 2m 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 7th, the UK and Ireland Contest Club 80m Contest runs from 2000 to 2100UTC. Using SSB on the 80m band, the exchange is your six-character locator.
On Saturday the 10th, the First 1.8MHz Contest runs from 1900 to 2300UTC. Using CW on the 160m band, the exchange is signal report and serial number.
Also on Saturday the 10th, the Worked All Britain 1.8MHz Contest runs from 1900 to 2359UTC. Please note that this is an SSB-only contest, and all entries need to be with the contest manager by the 20th of February. See worked-all-britain.org.uk for full details of the rules.
The CQ Worldwide WPX RTTY Contest starts at 0000UTC on Saturday the 10th of February and ends at 2359UTC on Sunday the 11th of February. Using RTTY on the 80 to 10m bands, where contests are permitted, the exchange is signal report and serial number.
The PACC Contest starts at 1200UTC on Saturday the 10th of February and ends at 1200UTC on Sunday the 11th of February. Using CW and SSB on the 160 to 10m bands, where contests are permitted, the exchange is signal report and serial number. Dutch stations send their province.
Now the radio propagation report, compiled by G0KYA, G3YLA, and G4BAO on Thursday the 1st of February 2024
We had another week of relatively calm geomagnetic conditions with a maximum Kp index of three. The solar flux index declined from 172 on the 24th to 135 on the 30th.
Nevertheless, that is still enough to support propagation on the 10m band, with the maximum usable frequency over a 3,000km path generally being between 29 and 36MHz during daylight.
Solar activity has been at low levels with only minor C-class flares and one M-class flare detected. Active region 3559 is now located behind the west limb of the Sun and out of direct view. New active region 3567 in the northeast quadrant is showing the most promise as it appears to be in a growth phase. There is currently a 25% chance of a moderate M-class flare, according to the latest NOAA and SWPC update.
Earlier in the week, we had a period of moderate S2-level radiation storming. Proton levels streaming past Earth, following a solar flare early on Monday morning, increased but this has now declined.
A minor coronal hole also became Earth-facing on the 2nd of February, so we may still expect some disruption today, Sunday the 4th.
The 10m band is still romping along, with beacons along the eastern seaboard of the USA coming alive in the afternoon. This weekend, the 3rd and 4th, sees the 10-10 International Winter SSB Contest, so there should be plenty of stations to work on 28MHz.
Next week, NOAA predicts that the solar flux index may rise again, perhaps to 150 today Sunday 4th, and up to 165 a week later. We may have unsettled geomagnetic conditions on the 5th and 6th, with the Kp index predicted to rise to three.
And now the VHF and up propagation news from G3YLA and G4BAO
This week, ending the 4th of February, saw high pressure to the south of Britain and fronts over northern areas. For some stations in the southern half of the country, there could be useful Tropo conditions for the 432MHz Affiliated Societies Contest taking place today, the 4th.
Unfortunately, the frontal activity over the north will move south on Tuesday to remove any chance of these better conditions lasting into the 144MHz UK Activity Contest on Tuesday the 6th of February.
The period from mid-week onwards looks dominated by low pressure with rain or showers and generally flat VHF and UHF prospects unless you are set up for rain scatter. Other propagation modes like meteor scatter, aurora or Sporadic-E seem likely to remain in the background for the coming week.
For EME operators, moon declination is negative and falling to a minimum on Tuesday the 6th. Path losses are also decreasing since their maximum at apogee on Monday the 29th. But with the low peak moon elevations, only eight degrees on Tuesday, moon windows will be short.
144MHz sky noise is moderate to very high all week going over 3100 Kelvin on Tuesday the 6th. Friday and Saturday see the moon and sun very close together, so Sun noise in antenna beamwidths will be an issue.
And that’s all from the propagation team this week.
GB2RS News
Sunday the 28th of January 2024
The news headlines:
The deadline for nominations in the RSGB elections is next Wednesday, the 31st 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 17th 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 200th 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 28th, 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 [email protected] or 07777 699 069.
The Canvey Rally will be held on Sunday the 4th 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 [email protected]
The MIDCARS Radioactive Rally will be held on Sunday the 11th 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 31st of January with special callsign HH220Y. The station is active to celebrate Haïti’s 220th 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 4th to the 18th of February 2024. The station is active to celebrate the 21st 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 31st 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 4th 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 26th and ends at 2200UTC today, the 28th. 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 27th and ends at 1200UTC today, the 28th. Using RTTY on the 80 to 10m bands, where contests are permitted, the exchange is serial number.
On Wednesday the 31st, 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 1st of December 2023. The contest will run until the 31st of January 2024. Using all modes on the 6m band, the exchange is signal report and locator.
On Sunday the 4th 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 25th 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 20th 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 24th.
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 29th 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 28th, 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 4th 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 30th. Path losses reach their maximum at apogee on Monday the 29th, then start to fall again. 144MHz sky noise is low all week.
And that’s all from the propagation team this week.
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