Volumen of COM2 on GNS430

Chotter

I’ve found that the volume knob on the GNS430 doesn’t work. The only way to change the volume is by using the GNS530 knob, which adjusts both COM1 and COM2. It’s very useful to have ATIS playing in the background at a much lower volume during taxi or on approach while keeping COM1 active.

Best regards

Black Square

The code appears to be correct. I can check this later, though. The code come from several of my other aircraft, where I assume this would have been reported if it was not working. If you want to see if this is something on your end, the events are:

(&gt;K:COM1_VOLUME_INC)
(&gt;K:COM1_VOLUME_DEC)
(&gt;K:COM2_VOLUME_INC)
(&gt;K:COM2_VOLUME_DEC)

And to monitor:

(A:COM VOLUME:1, percent)
(A:COM VOLUME:2, percent)

Chotter

I believe I’ve found the cause and it’s related to the issue I mentioned about the COM/MIC buttons in this other post.

While I have COM2 and COM2/MIC selected, the GNS430 volumen knob works correctly. As soon as COM1/MIC is active, having COM2 active at the same time, it doesn’t work. In that case only the GNS530 volume works.

Occasionally (not always, but it happens sometimes), when all four buttons are selected (COM1, COM1/MIC, COM2 and COM2/MIC), the ATIS selected on COM2 is heard duplicated, as if it were also tuned to COM1.