Roger G3XBM's (Mainly) Amateur Radio Blog

Looking through some old photos, I spotted this one from 2012 showing my beacon for 2200m (137kHz). As I recall it produced about 8W althoug...

On my ‘to do’ list are some QRSS tests at 137kHz using my earth-electrode ‘antenna’ in the ground and SpectrumView software on my iPhone.

Last night I gave the latest version of Google's AI tool (now called Gemini) a try. I tried various family names, without being impresse...

This was in 2013 at the old QTH.  At the time I was seeing how far away I could be spotted on that band. Not much later, I got to the Nether...

My test a year ago with this was (surprisingly) a failure. At some point I would like to try again. There is a short video of this beacon on...

 Apart from an unsuccessful test last year with my CW beacon, I have not tried TX this LF band. As my only suitable antenna is my earth-elec...

 Apart from an abortive try last year with my CW beacon, I have not tried this band for many years.  With my NanoVNA I can (in theory!) matc...

 It occurs to me that my earth-electrode "antenna" in the ground should work well on 2200m RX. Apart from my CW/QRSS beacon, I hav...

One of my Facebook memories today was this photo of my 2200m tests. Apart from a very brief TX last year I have not been on that band on TX ...

This winter, I went on 137kHz WSPR RX for the first time at this QTH. I used my earth-electrode antenna in the ground. Really, I ought to ...

As 10m and 6m were quiet, I have QSYed to 136kHz RX on WSPR and OPERA.

At about 1920z I QSYed to 136kHz RX from 50.280MHz (6m) MSK144 RX.  As yet, no spots.

There is no doubt that I have to improve my RX system on LF and MF. Last night I spotted the same few stations on 136kHz WSPR and OPERA, g...

For about 45 minutes now I have been on 136kHz WSPR RX and 136kHz OPERA RX. G4FTC (123km) has just started to be spotted on WSPR. I have to...

Yesterday evening I was on 136kHz RX again. On WSPR RX  2E0ILY, G4FTC and G8HUH (250km) were spotted. On OPERA RX the only station spotted w...

About an hour ago, I QSYed to 136kHz RX. Both WSPR and OPERA are being monitored. As yet, no spots on WSPR. I need to look on a different PC...

As is my norm, I QSYed from 6m (sometimes 10m) to LF (sometimes MF). The shack PC was on battery power to keep the SMPSU noise to a minimum....

Rather early, I have QSYed to 136kHz WSPR RX and 136kHz OPERA RX. I hope I catch some stations this evening. UPDATE 2055z:  G3XIZ, 2E0ILY ...

Last night I did not go on LF or MF as my shack PC was playing up. I intend to go on 136kHz WSPR RX and 136kHz OPERA RX tonight. I  need my...

In the end I just remained on until the shack PC's battery went flat. This was just after 0300z. The batteries last a long time!  On W...