Roger G3XBM's (Mainly) Amateur Radio Blog

The night before last EA5DOM (1525km) was copied 45 times on 472kHz with the preamp in circuit, so the FT817 was at maximum sensitivity. M...

Overnight, I used the FT817 on MF RX with a preamp and the (short) earth-electrode antenna in the garden. Subjectively, the sensitivity is b...

As mentioned some days ago, I received a 472kHz preamp from a very kind, anonymous, person recently. In the next few days I need to check FT...

After some thought I'm almost certain now to buy a Wellbrook RX loop for use on 136 and 472kHz receive. This loop will also be useful fo...

When the grandchildren and family have all gone home next week, my first project will be to improve the RX antenna system for 472-479kHz rec...