There is also some sdr stuff on redit although its usually a discussion with newbies, lots of interest in satellite and spacelab video decoding, and questions about basic antennas. I already am a member of the groups.io but I didn’t notice the hdsdr entries. I suppose using the IF panadapter would be useful if you are near strong stations that might overload the sdr assuming the bandpass filtering in the xcvr is better.

Just fyi, I’ve found the rsp1 rx to be more than adqueate so rather than tap into the IF I’m just going to put in an antenna relay so that the default rx is the sdr but when I xmit the relay switches to the ham xcvr. Its more predicatable except for the “feature” that I just discovered after you mentioned it. I haven’t figured it out so I’m just using HDSDR instead. It also affects how the numbers change on the digits. Have you tried it with the SDRPLAY software? I still havent’ figured out the details but I get odd behaviors by clicking in different parts of the window depending on how zoomed in I am. Maybe a config/default setting somewhere? It does not happen on the left hand part of the window. HOWEVER, if I click on the extreme right of the spectrum window then that frequency hops to the center. Anyway, I can click anywhere in the spectrum window and it does not center as you describe. I am using HDSDR with an rsp1 directly, not hooked to the ham rig as a panadapter. Where is the “HDSDR GURU”? I’d like to ask him some questions.

Ic 8500