FM PR4G radio noise and preset changing problems

[virgo47]

FM radio is described in the manual from p112, and the model is simplified, it should work fine for a few preset channels. However, I found some issues with the radio - some of them are tricky to replicate, as the radio seems to change the behaviour a bit:

• At first, it's  playing whatever is on the first preset - but with excessive noise. TST is not different from other three "ON" positions. If you turn it off, it's quiet, and after turning it on again, it still behaves the same. All four positions are the same, playing the current preset channel with some noise.
• If I change the preset to another one, it's quiet - this  may be OK, I don't have any station on the other preset. If I change it back - it is still quiet. Waiting don't help. Turning it off and on does not help either.
• However, I can start receiving the preset channel again if I go to TST - I can hear it with noise. And if I go to other ON positions - suddenly I can hear it without any noise as well!
• BTW: TST does not play the 1kHz tone as advertised.

To summarize the behavior - in order to hear the preset correctly, you have to change to another one, than back, then go to TST and than to any ON position.

I'm attaching the mission file and track file - and this video (which is the same mission, but not the same as track file):

Lastly, a minor problem, but it got me confused for a bit - the mission editor shows AM for FM preset frequencies. The manual (p113) shows an old screenshot from the Mission editor, and it shows FM. Now it looks like this:

gazelle-funny-fm.trk gazelle-radio-problems.miz

[virgo47]

In an unexpected twist of events, I discovered a similar problem with UH-1H:

So, perhaps, this is not Gazelle specific, but something generic with DCS FM radios - or something both modules share at least?