Radio Controls for station numbers and channel numbers

[sobe]

While I am a long time user of Viacom Pro, I have never used the commands below:

Radio Control
Select (AM/FM) xxx decimal x     Radio tune mod freq MHz

Select Channel [1-20]          Radio tune channel

As far as I can determined, these are the only commands used in Viacom Pro to change the radio freq. and channels.

I have started on Baltic Dragon's new A-10C Iron Flag campaign and it requires a lot of radio freq. changes so I tried to use the above Viacom Pro commands to do so and have the following issues:

(Note: I have set each of the 3 A-10 radios to a separate button on my HOTAS so as to avoid confusion as to which radio I want to use. )

First, for the freq.  changes, do you say Select AM xxx.x or do you leave out the AM?  The UHF radio has 6 digits so do I add the additional digits to the voice command?

Second, in the game, the only channel number that changes is the UHF radio.  The other two radios do not change their channel number when commanded to do so.

Third, none of the above commands (freq. changes or channel changes) work to change the radio(s) freq. or channels (even though the UHF channel does show a change of channel number in the game) on any of the three radios.  Is this a Viacom Pro issue or is it limited to this custom campaign (or is this a simple user error)?

Has anyone successfully used these radio commands in any module and if so, which one(s)?

Edited January 29, 2022 by sobe