You need to watch the entire video as Rick talks about more than just the MB1 he talks about new ESDR software (V3) and much more. A lot has changed in the past 2 years! Thanks, but I don't need to watch the entire video. That video was boring from the start. I'm not impressed with either the SunSD...

I just found this video today. MB1 is a good, nice-looking radio with a built-in i7 PC, but it has its own weak points. TX IMD3 is -37 dB @ 100W PEP, while the openHPSDR team has achieved TX IMD3 -70 dB. MB1 has server software, but the other SunSDR radios without the knobs need additional hardware...

DirectX is a good improvement in Thetis; it eats less CPU power. The latest PowerSDRs and Thetis are quite similar though. There are folks running Hermes/PowerSDR with great success and see no need to switch to Thetis. Indeed, it may look un-modern, but it is practical and logical. I use it in "...

The base code is not the same. They used DSP core written by AB2KT and N4HY for many years in PowerSDR. They now use the DSP core written by NR0V.

Do they both run on the same firmware version? Have you tried to reload the firmware into the faulty one?

I would try G4ELI SDR Console first to see whether it's a hardware or software issue.

I had the same problem with the openHPSDR hardware with USB connection. PowerSDR occasionally crashed upon release of the PTT, and hardware transmitted something at full power then. It didn't happen often but it was annoying. TX power was only 16W, the antenna was a 20m full-wave delta loop with 2:1...