LF season approaching

As the winter is approaching it was time to think LF again. When I bought the main parts for the MF amplifier from Dave G0MRF at the HF convention I also ordered one of his preamp kits. I managed to squeeze it into a small pomona box, time to try it out

Initially I connected it to my Alpha Delta DX-EE and ANAN-10 and left it receiving WSPR using K1JT's new1.7.0RC2 WSJT-X software. It seemed to do well:

Time	Call	dB	Loc	Power	km
18:22	G4FTC	-21	IO91pi	2	137
18:36	PA0A	-24	JO33de	1	591
18:38	LA8AV	-28	JO59cs	5	1151
19:56	G3WCE	-29	JO02pt	1	255
23:52	F1AFJ	-27	JN06ht	1	625
00:46	DJ0ABR	-29	JN68nt	0.2	1148
00:54	G8HUH	-19	IO81mg	1	103
01:16	PA3ABK/2	-25	JO21it	0.5	481

The preamp reduced the LOS droitwich 198kHz on my system.

During the evening  I wondered what was on 136kHz. So I dug out my old G0MRF 136khz preamp and let it run for a short period, while, again connected it to my Alpha Delta DX-EE and ANAN-10 receiving WSPR decoded 2 stations

Time	Call	dB	Loc	Power	km
22:00	G8HUH	-20	IO81mg	0.1	103
22:04	2E0ILY	-12	IO82qv	0.01	91