A forum user pointed me towards the MFJ-1708SDR for project that requires sharing antennas with the transceiver and SDR. (Thank you, K6CLS.) I commented that I wasn’t that fond of MFJ products but, a few days later I figured what the heck and looked it up. After reading MFJ’s product description I was actually thinking it might work. K6CLS had also pointed me to recent QST review but, that spoiled the party for me. The RX insertion loss seems quite high; 14 MHz/3.6 dB, 50 MHz/3.94 dB, 144 MHz/7.4 dB and 440 MHz/19.6 dB. The transceiver isolation was also not that impressive with 14 MHz @ 17.4dB and 440 MHz @ 0.8dB. I’m assuming the isolation is referring to receiver isolation or a lot of people would be letting the smoke out of their SDRs. So I could probably live with the isolation but, the RX insertion loss seems unacceptable. I do want to work SSB from HF to 70cm. My initial RX/TX switch concept was just a little microwave coaxial relay and a driver circuit to trigger it off the amp keying line. The SDR (RSP2) is a better receiver than my 857D so the plan is to just switch the transceiver entirely out of the antenna circuit during RX. Am I missing something here? What are you guys doing for RX/TX switching?