17 Dec 2022
10m QRP WSPR TX (Saturday)
Yet again I am on 10m WSPR TX with 500mW from the W5OLF beacon. 18 unique stations have spotted me as the table shows.
Cambridge Winter Sun - NOT amateur radio
Sunspots - Saturday December 17th 2022
Solar flux is 163 and the SSN 0 (I suspect this is an error, although it still shows 0 at 1939z). A=6 and K=0.
16 Dec 2022
8m tomorrow
For some reason, I am now seeing a very high SWR on 8m. I think it is the coax plug to the rig. I have a way of checking this that I shall try tomorrow. If this is successful, and the problem is fixed, I intend to do more QRP FT8 tests at 2.5W and the low dipole.
My 10mW ERP WSPR tests have now (successfully) concluded. 10mW ERP can definitely cover the local area (to at least 17km) on WSPR even with antennas that are not 8m antennas at the RX end. With proper 8m antennas at the RX, who knows what the range would be?
In the car - NOT amateur radio
OFCOM and drones
OFCOM has been consulting about commercial drones. It is aware that they are getting bigger and better with longer ranges, so it has worked out a licencing regime for those controlling them. See the OFCOM website for details.
OFCOM has also updated the data it holds on us.
Winter Es
Don't ask me why, as I do not know, but there is a small uptick in Es propagation in mid-winter. Do not be too surprised to copy Europeans on 10m and 6m, and possibly 4m too. I think Es can remain good until the end of January (ish). Remember that Es can occur at any time of year but is most common in the northern hemisphere in May, June and July.
FT8 can be good for this as even very short openings are caught and FT8 is well monitored. As you know, Es signals can be very strong.
2m QRP FT8
As my 2m antenna was already connected to the rig, I am on 2m QRP FT8 this morning with 2.5W to the big-wheel omni antenna. Already spotted by 5 stations with the furthermost G4RAA (333km) in Devon.
UPDATE 1139z: 6 stations spotted on RX in 4 countries. My own 2.5W has been spotted in 2 countries (6 stations with the furthermost GI6ATZ (479km) in Northern Ireland.
UPDATE 1928z: 15 stations have spotted me with the furthermost GM0HBK (668km). See map.
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10m QRP WSPR TX
2m MSK144 overnight
15 Dec 2022
Cambridge Christmas - NOT amateur radio
2m MSK144 RX (Thursday)
As it is the Geminids MS shower, I am on 144.360 MHz MSK144 RX using the 2m big-wheel omni antenna. I am hoping to copy some DX on 2m, probably early morning. I am told this is the best place to look.
UPDATE 2212z: DL2NBU (791km) spotted strongly.
Winter wonderland - NOT amateur radio
10m FT8 RX (Thursday)
At the moment (1611z) I am on 10m FT8 RX. It seems wide open to North America. I was going to go on 8m FT8, but for some reason the SWR is very high.
UPDATE 1956z: 323 stations spotted so far.
8m local experiment
For several days over the last few weeks I have been doing tests with local stations to see if 10mW ERP 8m WSPR could be copied locally. In the end, 6 locals were able to get the signals and as far as I know they all used antennas that were not cut for 8m!!
My conclusion is that 10mW ERP WSPR beacons would definitely cover the local area. My own interpretation of UK ISM rules is that anyone may legally transmit beacons at 8m in the ISM band as long as they meet the technical requirements and IR2030 without a licence. With Es conditions such beacons will be copied in Europe occasionally.
My local tests have now stopped.
14 Dec 2022
Brrrr ... NOT amateur radio
10m FT8 next year
Currently, I expect to be on 10m QRP (5W) quite a bit next year. Possibly I may also try 15m FT8. I find voice QSOs hard these days. Many people are moving to FT8 now. Around sunspot maximum, working the world should certainly be possible with QRP 10m FT8.












