Roger G3XBM's (Mainly) Amateur Radio Blog

Bert, PA1B , has done some analysis of my 472kHz WSPR to see how little power (ERP) would be needed to be still copied. Of course, this as...

Bert PA1B has done some analysis of my recent 10m WSPR spots in Paraguay. At times, much lower power than my 500mW would probably have b...

Bert PA1B has done some analysis of my recent aircraft scatter WSPR spots on 6m. As is usually the case, clicking the image will bring up...

Bert PA1B has analysed my 500mW WSPR spots today, ignoring the many spots by local G4IKZ.   It shows the signal strengths (uV/m) implied by...

Bert PA1B has analysed my recent reception on WSPR by PY2RN to see just how little power could have been used and still be successfully dec...

This afternoon I exchanged WSPR reports with RI1ANF in the South Shetland Is in Antarctica on 10m. This now means I've had reports this...

Bert PA1B has an excellent website describing his experiments with very low power on HF. Using his FT817 with various simple attenuators...

Bert PA1B has done some interesting "reverse analysis" of the WSPR reports I've given people. Working back from these you can...

Whilst looking at the links on PC4T's blog I noticed Bert PA1B 's excellent website all about QRPp operating with lots of tips on h...