Squelch - is it tunable?

OK, squelch is easily turned ON/OFF in a couple of ways, and has worked perfectly for years in my IFD.

But, there is some kind of transmission noise on 125.0 Mhz, perhaps only in and around the CYHM area that does break through intermittently.

If there any way to adjust the gain on the squelch, perhaps with a maintenance function? (don't see one)

* Orest

Let me understand that.

Normal ops, the squelch is ON, the top left volume control changes the COM volume.

If you push the volume button, it turns squelch OFF, and you will hear weak transmissions, or just noise.

Now, you are saying that rotating the volume knob WHEN you have disabled squelch by pushing the volume control IN, adjusts the gain on the squelch??

If so, how would you know what you have accomplished?

Or, do you just mean that it adjusts the volume of what you are hearing with squelch OFF. I guess, I would just expect that, but that is not changing the 'gain' on the auto-squelch, as to when it would suppress or let in transmissions, and it is the latter that I am trying to do.

* Orest

Thanks, will have a look, that should be exactly what I want. I think I have 10.2.4.1.

* Orest

Yep, I'm on 10.2.4.1, and FOUND the new squelch page. Thanks!

But, that still begs two questions.

1) If the squelch is NOT set to custom, what is the squelch numerically?

2) Does increasing the squelch setting %, raise or lower the squelch trigger point? IOW, would you hear ALL static at 0% or 100%?

* Orest

As part of a case I have with tech support (for a different issue) for which I sent them logs, I asked them to look at this one too.

I found this thread about the custom squelch config setting and it looks like it couldn't be made any more sensitive than 50% at that time. Has that behavior changed with 10.3? I would like to try making the squelch more sensitive (make it easier for signals to come through) so I wanted to check if it could be set to be anything lower than 50% and if it possible, what would be a good setting?

I actually pinged the previous owner about it and he indicated that he had some issues with what he called the "hyperactive" auto squelch. Has anyone else had issues with the auto squelch sensitivity on their IFD or is it a common trait in IFDs?

Thanks,

Vas

Follow up ...

It is not the IFD, nor cables, or anything else in the aircraft, at least in my instance. I did do all the usual pulling of portables, power adapters, and so on.