Hi, this is an old thread, but I guess still many reader.
I have done some rx test on 4m (SUNSDR2 Pro, indication general band) using the same setup as with my 7300 (5 El Yagi, 15dB LNA with 1 MHz wide band filter , 3dB Splitter).
Reception of usual (P14) 4m beacons is slightly better over 6hrs monitoring. I used the normal HF antenna input on SUN2PRO.
:
I my location SunSDR produces less subsampling qrm than my IC7300 - apparently a far superior lowpass filter in Sun2Pro.
How to activate TX mode - PTT (DAC Out: 10mW).
I use ESDR2, ver 1.1.3, so not sure if PTT is already implemented in new beta software.
With the high stability and excellent frequency resolution (1Hz or less) of the SunSDR , it certainly would be interesting to unlock the DAC over its full range.
73 Charly, DF5VAE