Roger G3XBM's (Mainly) Amateur Radio Blog

Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.

2 Apr 2026

10m 5W FT8 (Thursday)

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My 10m FT8 was turned on at about 1050z. UPDATE 1513z: 132 stations have spotted me this afternoon. UPDATE 1639z:  139 stations have spotte...

Back to the moon

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So Artemis 2 has blasted off to go around the Moon. It seems incredible that the last time humans went there was 1972, not long after I star...

King's, Cambridge, UK across the meadow

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As mentioned yesterday, about now is good in Cambridge with few students and visitors.  The photo shows the world famous King's College ...

6m 5W FT8 (Thursday)

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 My gear was turned on a few minutes ago. UPDATE 0820z:  Spotted by 4 stations with the best GW7SMV (242km).  

10m 200mW WSPR (Thursday)

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 My beacon was turned on just before breakfast. UPDATE  0816z:  Just spotted by a station in Greece so far.

The windmill next door

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This fully restored 200 year old windmill really is right next door. At a guess, it is about 10m from our kitchen. We can see it having brea...

20m FT8 RX (Wednesday and early Thursday)

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Since about 1915z last evening I have been on 20m FT8 RX. My antenna is totally unsuitable being an end-fed that hardly matches on 20m and i...

Sunspots - Thursday April 2nd

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 Solar flux is 142 and the SSN 130. A=8 and K=4.
1 Apr 2026

10m 5W FT8 (Wednesday)

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 Although I am mostly FT8 RX, I was briefly on 10m 5W FT8 TX at about 1105z. UPDATE 1117z:  On 5W 10m FT8 TX, spotted by 3 stations and on ...

10m 200mW WSPR (Wednesday)

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 My beacon was turned on at breakfast. UPDATE 1003z: Just EA8BFK (2880km) spotting me.

Spring colour

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The Backs (literally the backs of the colleges in Cambridge,UK) are a feast of colour in spring.  This is the very best time of year with ne...

Cambridge late March

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At this time of year it is usually quieter here as the university has gone down and there are fewer visitors. The photo shows the back of Ki...

Sunspots - Wednesday April 1st

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 Solar flux is 141 and the SSN 133. A=7 and K=3.
31 Mar 2026

My war

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It would appear that the world is entering recession, has higher fuel costs and Iran will emerge stronger and the USA weaker. Iran is consid...

WSPR versus FT8

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It is now about 3 months since I got my 10m QDX-M FT8 transceiver and the Zachtek 200mW WSPR TX. Much to my surprise, I am getting more fun ...

How to win friends

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 This was a quote from the BBC website. I will let you guess who said it!! "You'll have to start learning how to fight for yourself...

Economic emergency

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 It is clear that the war against Iran is having consequences across the planet.

10m 200mW WSPR (Tuesday)

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My beacon was turned on at about 0750z.  UPDATE 1340z: 4 stations spotting me. UPDATE 2001z: 7 stations have spotted me. Now QRT.

10m 200mW WSPR (Monday)

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In all yesterday I was spotted by 5 stations.  See map from WSPR Rocks by VK7JJ.  The spots from the German research base in Antarctica seem...

Sunspots - Tuesday March 31st

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 Solar flux is 152 and the SSN 143. A=12 and K=2.
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Roger G3XBM
Burwell, Cambridge, United Kingdom
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