Just this discovered this lately. I did program my V1 to have 7 arrow down, B arrow down, C & D arrow up. and E arrow down. This was to mute K band for 30 seconds and unmute if signal strength goes up to 5.
When doing this, i noticed that it also automutes X band. Can you guys with the 3.826 version check this out and see if your unit does the same thing? I use to program my detectors to disable X band but enabled it lately.