630m WSPR overnight (again)

ATU for 630m

I was again transmitting on 630m WSPR yesterday evening and overnight. As well as spots by  G3KEV (232km) I was also spotted by LA3EQ (769km) up in Norway 6 times.

Yesterday, I calculated my ERP based on certain assumptions about effective antenna height and the measured antenna current. I'll post this separately. It is certainly low milliwatts!

The second photo shows the transverter used on 630m. Although it puts out about 12W into a 50 ohm load, the actual ERP is very low. The PA is an IRF510 MOSFET. This was replaced.