I am trying to understand if there is a problem with my setup or if this is somewhat normal. Looking at the Perf logs, I see a lot of bad decodes according to the chart. I am using the latest version of piaware and 20% bad messages seems high. I have played with the gain a bit, but nothing really changes the proportion of bad vs good messages if I am reading this right. My antenna is in the attic but even before that when it was on the roof, it seemed to exhibit the same behavior.
I am using an RPi 3 Model B, Blue dongle, FA Antenna connected LMR400 cable (40ft). I recently did a clean install PiAware 5. RPi is connected via ethernet.