Ha! Not a dumb question at all! It's a very nice way of finding out what the heck am I thinking? When ALEX is implemented you can not monitor 6m on the second receiver without an extreme drop in first receiver sensitivity when it is tuned to any band below 6m. I posted this request on the Yahoo Grou...

I suspect the issue is well hidden as the software defaults with ALEX in AUTO. When in AUTO the problem never occurs.

I have not reloaded the firmware. Is this a common approach or is it a Hail Mary?

ANAN 100B Serial# 100B1034 Firmware 1.3 PowerSDR OpenHPSDR PS v3.3.9-v3.3.14 (ALEX set to MANUAL (Firmware) Symptom: Drastically reduced RX sensitivity (Panadapter display sensitivity/gain is drastically reduced as well) Occurrence: When switching bands Pattern: I can reproduce the symptom on a repe...

I have posted previous issues that lead me to suspect firmware as the culprit.

Is there a projection for an update to the current 1.3?