XPost: rec.radio.amateur.moderated, uk.radio.amateur, free.uk.amateur-radio

Roger G3XBM's (Mainly) Amateur Radio Blog

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RadCom article

Posted: 17 Jul 2021 05:59 AM PDT http://g3xbm-qrp.blogspot.com/2021/07/radcom-article.html


The August RadCom has my article about the 10FT8R receiver for 10m FT8. It
is very simple but works well. I hope it gives you some ideas.
It would make a nice winter project. Ideally it needs a PCB. It should cost very little. With low cost GQRP Club crystals it is also suitable for 10m
WSPR. I was surprised by how much WSPR there was on 10m.

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10m FT8

Posted: 17 Jul 2021 01:28 PM PDT http://g3xbm-qrp.blogspot.com/2021/07/10m-ft8_17.html


After a brief period on TX with 2.5W QRP (I worked one F) I am now 10m FT8
RX only. It is now 0920z and 51 stations received.
All being well, I hope to let Richard G3TFX have my 10m multi-mode Lincoln President II on indefinite loan. This is thanks for all his hard work on my antennas. It is so long since I used this that I forget how to use it!
UPDATE 2029z: 374 stations spotted so far on 10m FT8 RX including North
and South America and the Caribbean and St Helena (ZD7) The furthermost was YV1SW (7862km).

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VLF 10 years ago

Posted: 17 Jul 2021 01:48 AM PDT http://g3xbm-qrp.blogspot.com/2021/07/vlf-10-years-ago.html



Ten years ago I was very active on VLF. The photo shows the earth mode
signal 6km away with 5W.


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Sunspots - Saturday July 17th 2021

Posted: 17 Jul 2021 12:42 AM PDT http://g3xbm-qrp.blogspot.com/2021/07/sunspots-saturday-july-17th-2021.html


Solar flux is 75 and the SSN 35. A=4 and K=1.

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