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.

4 Feb 2026

QRP CW

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  Recently, there was a 50mW CW QSO on 20m using this homemade TX. I forget who designed and built this.

Fog of war

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The trouble with wars and conflicts is it impossible to tell who is telling the truth. Both sides in a conflict tend to invoke propaganda to...

Sunspots - Wednesday February 4th

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 Solar flux is 178 and the SSN 171. A=5 and K=0. 
3 Feb 2026

Public life

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If you are in public life it must be hell.  Your every move is looked at, photographed  and every little detail picked over.  Recently, with...

Free Scrapbook PDF

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This is a gentle reminder that my Project Scrapbook is available as a free  PDF download on my main website.  It is really a dump of my life...

Cambridge art gallery window

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This painting was in the window yesterday. It captures the atmosphere. 

10m 200mW WSPR TX (Tuesday)

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My beacon was turned on at 0926z. UPDATE 0940z:  2 stations spotting me (EA8 and OH) UPDATE 1040z:  Spotted by 5 stations. See map by VK7JJ...

Sunspots - Tuesday February 3rd

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 Solar flux is 174 and the SSN 131. A=6 and K=1.
2 Feb 2026

Portable operation

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Many get lots of pleasure from operating in the great outdoors.  In some countries the Elecraft KH1 is popular. As far as I know, this is no...

Soon be spring

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These aconites were seen at Anglesey Abbey a few days ago.
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Roger G3XBM
Burwell, Cambridge, United Kingdom
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