I have been building more LPF’s to the same design for the RasPi. The only band that has produced no reports was Top Band, 1.9MHz. Taking a look at the signals that I was receiving the power levels seemed to be 5Watts so, with the clatter on 160m my 10mW was lost.
Better luck on 10MHz today.
2013-03-30 14:12 G3ZJO 10.140177 -21 0 IO92ng +10 0.010 DK6UG JN49cm 706 439
2013-03-30 13:28 G3ZJO 10.140167 -24 0 IO92ng +7 0.005 DK3SML JN49sf 806 501
Whilst producing the 1.9MHz LPF I ran on 474KHz, 630m, not expecting any results really, well the 3 stations close and capable of receiving me at really low powers did.
2013-03-29 15:08 G3ZJO 0.475701 -24 0 IO92ng +0 0.001 G4KPX JO02dj 80 50
2013-03-29 15:04 G3ZJO 0.475699 -23 0 IO92ng +0 0.001 G3XIZ IO92ub 46 29
2013-03-29 17:08 G3ZJO 0.475699 -29 0 IO92ng +0 0.001 G0VQH JO02fe 91 57
I now have a 3.6MHz LPF near completion. Later today I will test there.
Edit – its now later today.:)
Not DX but its working nicely on 80m.
2013-03-30 20:34 G3ZJO 3.594094 -20 0 IO92ng +10 0.010 G8JNJ/A IO90hx 148 92
2013-03-30 20:28 G3ZJO 3.594092 -23 0 IO92ng +10 0.010 G7JVN JO00gv 182 113