Roger G3XBM's (Mainly) Amateur Radio Blog

My son Tim Lapthorn , who is a professional jazz pianist, is holding a concert in Oxford on Sunday Oct 7th to promote his new album. All pro...

This afternoon I managed to do a little more work on the WSPR transceiver for 10m, building the oscillator/x2 multiplier stage and the balan...

Icom have announced that they will be introducing a new multi-mode, multi-band radio called the IC7100 which includes 70MHz at 50W on some...

Although not in the best of shape today, I spotted CX1BP (11131km) and EA8FF on 10m WSPR today.  Not bad for a handful of cheap parts. ...

FR1GZ and others coming through just fine This is the PC screen capture using WISPY as the 10m receiver for WSPR in the last hour or so....

For some reason when I put multiple images on a post it is not easily possible to see them clearly when clicked (at least with Firefox). S...

Rev B 28MHz WSPR receiver Adding more audio decoupling around the oscillator and adding a common base FET RF preamp has totally fixed th...

I rebuilt my 10m WSPR RX today (the rig has to be called Wispy ) onto a tidier, smaller board using MeSquares and took a few steps to reduce...

There is something strange about my Polyakov mixer based direct conversion receiver for 28.1246MHz WSPR at the moment. On the bench, when ...

The KX3 image on the Elecraft site The Elecraft website now shows "New Order Lead Time: 60 days" for...