Clicking noise when monitoring two frequencies.

[BigFlapper]

I don't usually monitor both frequencies but yesterday I turned on the dual monitoring and noticed that I have rapid clicks approx. 2-3 per second. This happens with or without the engine running.
Any suggestions on what to check?

 

[airguy]

Turn your strobes off, see if it goes away. What radios and comm panel are you using?

 

[BigFlapper]

Strobes were off when I tested it without the engine running. I'm using the Dynon com package.

 

[Raymo]

That clicking is by design so you know that the alternate frequency is receiving a transmission. It is a bit annoying when listening to ATIS when it is constantly transmitting.

 

[dynonsupport]

As Ray says, this is a side effect of the way our radio (and others on the market) tune two frequencies. It's "by design" and there's nothing you can do to eliminate it.

 

[carlp101]

I've noticed the same thing, but only quite recently. I was putting it down to interference from other kit I have installed. I never used to hear it. Dynon, are you sure it's not as a result of a software upgrade on the radio?