I use:

QRP HF Transceiver: LIMA SDR TRX ( DL9WB), 1W PEP ( tuned with Si 570 )PA :  Linear Amplifier 100 W ( 2 x MRF 422 ), Driver ( 2 x IRF 510 ) 5 W. PC: Toshiba, Soft: PowerSDR IQ, HRD. Antennas: INV. V for 80 m, EH Antenna for 20 m.

If you decode me on WSPR, I generally operate on the 80m band at a frequency of 3,5941 MHz using my LIMA and driver 5W (2xIRF510). I use for receiving your WSPR on the 20 m band at a frequency of 14,0971 Mhz. EH Antenna by OM3TBG. I use for 15 m W3DZZ and LIMA SDR TRX with 100 mW.



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My home made SDR TRX LIMA