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FSX Can I turn Com Radio 'Off'

Brian A

Brian A

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ca-ontario
An XML NOOB here (and my first post)... so I'll try not to embarrass myself.
I'm working on an aircraft who's com radio has an on/off switch. Pouring through the SDK, I simply cannot see a way to disable the com radio audio or otherwise turn it off. Is there a way or an alternate strategy (like tune to a known 'dead' frequency)?
Thanks in advance for your help!
Cheers, Brian
 
Pretty sure the only way is to use the switch_audio_com1 ect, for the display if digital you will need a custom L:var that toggles the vis of the display or something like this
Code: 
<Gauge Name="Digital_COM"
Version="1.0">
<Image Name="adfbg.bmp"/>
<Element>
<Failures>
<SYSTEM_ELECTRICAL_PANELS Action="0"/>
</Failures>
<Visible>(A:CIRCUIT AVIONICS ON, bool) 1 ==</Visible>
     <Text X="49" Y="15" Length="6" Fixed="Yes" Font="Quartz" Adjust="Center" VerticalAdjust="Center" Color="#FF8C00" Bright="Yes">
        <String>%((A:COM ACTIVE frequency:1, Megahertz))%!6.3f!</String>
     </Text>
  </Element>
   <Mouse>
       <Tooltip>COM1 Freq</Tooltip>
   </Mouse>
</Gauge>
 
Thanks for the reply, but I think you've misunderstood my goal. I simply want to stop any FSX generated radio chatter if I've turned off the command radio in my VC. It seems that if I have a radio in my aircraft and it's tuned to a valid frequency, you'll going to hear ATC at some point.
 
There is a set of 3d code that toggles audio for all the radios in the modeldef.xml...like switch_audio_both which uses the K.var COM_RECEIVE_ALL_TOGGLE
do a search for switch_audio in the modeldef.xml file or the sdk...
 
Turn the avionics master switch off using the AVIONICS_MASTER_SET key event?
 
He is wanting a way to individually "turn off" com and nav radios independently. I know of no way this may be done, unfortunately.
 
Brian A said:
Is there a way or an alternate strategy (like tune to a known 'dead' frequency)?
Click to expand...

Yes, doing that and managing frequency display with a Local Var instead of the typical Aircraft Var should do the trick.

Tom
 
taguilo said:
Yes, doing that and managing frequency display with a Local Var instead of the typical Aircraft Var should do the trick.

Tom
Click to expand...

After spinning my wheels for a bit, this approach seems to be yielding results. It's a bit fiddly, but it's working. Thanks!
 
The way I use (which I borrowed from the old Just Flight Flying Club Seneca for FS9) is to set the radio freq to 136.975 (I think that is the highest com radio freq you can have in FSX, I'm just going off memory here so I may be wrong. As far as I know there are no actual radio stations in FSX that use that freq).

When the radio goes off I copy the com frequency to an L var and then set the com freq to 136.975.

This stores the com active freq:
(A:COM ACTIVE FREQUENCY:1, Frequency BCD16) (&gt;L:COMstorage, number)

This sets the com radio to 136.975 (remember that I going off my memory here so I think that is the right number):
13975 (&gt;K:COM_RADIO_SET)

When the radio comes back on I use this:
(L:COMstorage, number) (&gt;K:COM_RADIO_SET)

If L:COMstorage is zero (eg if the user has just loaded the aircraft) I use this:
(A:COM STANDBY FREQUENCY:1, Frequency BCD16) (&gt;K:COM_RADIO_SET)

It may also be necessary to continually check the com radio to make sure the user doesn't use a key command to change the freq.
 
If you run makerwys.exe (Pete Dowson), you will get a list of all comm frequencies in use on 'your' installation.
Easy to find an unused frequency. Not so easy on other peoples installation.
Anthony31's suggestion may be the best.
 
I am currently using 121.475, which is identified as a protection band for 121.50. With luck, I'll never find anyone broadcasting in FSX on that frequency regardless of location.

I would guess that the test flight bands are probably silent on FSX as well?

118.000 - 121.400 Air Traffic Control
121.425 - 121.450 Govt AWOS/ASOS
121.475 - 121.525 Band Protection for 121.5
121.550 - 121.575 Govt AWOS/ASOS
121.600 - 121.925 Air Traffic Control (Old gnd ctrl freq band)
121.775 SAR ELT Location training
121.975 FSS Private Aircraft Advisory
122.000 - 122.050 En Route Flight Advisory Service (EFAS)
122.075 - 122.675 FSS Private Aircraft Advisory
122.700 - 122.725 Unicom - Uncontrolled Airports
122.800 Unicom - Uncontrolled Airports
122.825 Domestic VHF
122.875 Unicom, Domestic VHF
122.950 Unicom - Airports with full time ATCT or FSS
122.975 - 123.000 Unicom - Uncontrolled Airports
123.050 - 123.075 Unicom - Uncontrolled Airports
123.125 - 123.175 Flight Test itinerant
123.200 - 123.275 Flight Test
123.325 - 123.375 Flight Test
123.425 - 123.475 Flight Test
123.525 - 123.575 Flight Test
123.600 - 126.800 Air Traffic Control
128.825 - 132.000 Operational Control
132.025 - 136.475 Air Traffic Control
136.500 - 136.875 Domestic VHF
136.900 - 136.975 International and Domestic VHF
 
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