28 Oct 2025

Sunspots - Tuesday October 27th

 Solar flux is 121 and the SSN 96. A=6 and K=3.

27 Oct 2025

Meshtastic

Last Friday the Cambridge Radio Club (CDARC) had a talk on Meshtastic . This is a form of "off grid" mesh communications. 

This uses LoRa and ISM bands. It is yet another form of experimentation that does NOT need amateur radio. 

Operation on the ISM bands is licence-free.


Brandon Country Park, Suffolk, UK


We went here this morning. The leaves were beautiful.

6m 5W FT8 (Monday)

My gear was turned in at about 1335z.

UPDATE 2022z:  Spotted by 29 stations. See map. Now QRT.

10m 500mW WSPR (Monday)


My beacon was turned on at about 1325z. 

UPDATE 2031z:    Spotted by 24 stations. See table. Now QRT.

Building the Hermes Lite transceiver

 This video shows how someone built a Hermes Lite . No soldering is needed.  It will be QRP.

Lounge view

 

This is the view from our lounge window. 

The hedge at the front is ours.

Monday plans

 Later, I hope to go on 10m 500mW WSPR and 6m 5W FT8.

WSJT-X 3.0.0

Steve G1KQH has reminded me that WSJT-X version V3.0.0 is available, but it is only available as a release candidate. Normally, a fully released version comes later. I believe V3.0.0 offers some further improvements.

See https://wsjt.sourceforge.io/wsjtx.html.

Sunspots - Monday October 27th

 Solar flux is 124 and the SSN 92. A=4 and K=1.