[aprssig] VHF Aircraft Channels

[Josh Freeman]

My understanding is that even if you have a type-accepted radio for airband,
you may only use a ground-based station to communicate with aircraft in
DIRECT SUPPORT of aviation activities. The control tower obviously
qualifies, and so do providers of aviation services such as fixed-base
operators... but I don't know whether the experiments you want to run would
qualify. It's been my experience from bumming around with some of my friends
who are into kitplanes that the airband is pretty strictly monitored, and
I'd hate for you to run into any problems. Of course, you may very well know
more about the restrictions in your area than I do. Just my $0.02.

Why not just run a 2m or 70cm rig from the plane? It's perfectly acceptable
to do that as long as the aircraft is operating VFR and you have the
approval of the pilot-in-command.

Josh

On 1/23/06, Robert Bruninga <bruninga at usna.edu> wrote:
>
> Hummh... We all have these radios that tune the
> 118-137 MHz AM aircraft band...  But what channels
> are available to communicate plane to plane or
> plane to ground?
>
> Our aerospace department has a plane they fly
> occasionally for flight studies.  What channel
> can I talk to them on to coordinate some GPS
> experiements for example?  (That isnt too
> crowded)
>
> Here is the list I got on the web, I'm hoping
> someone private pilots out there have made
> ssense of all of this an can cut to the chase...
>
> 121.500             Emergency Search and Rescue (ELT Operational
> 121.600 - 121.925   Airport Utility and ELT Test
> 121.950             Aviation Instructional and Support
> 121.975
> 118.000 - 121.400   Air Traffic Control, 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 Airport and Aeronautical Utility
> 122.750             Aircraft Air-to-Air
> 122.775             Aviational Instruction and Support
> 122.800             UNICOM - Uncontrolled Airport
> 122.825             Domestic VHF
> 122.850             Multicom - Special Use/Aviation Support (Non
> Interference Basis)
> 122.875             Domestic VHF
> 122.900             Multicom
> 122.925             Multicom - Natural Resources
> 122.950             Unicom - Airport with full time ATCT or full time FSS
> 122.975 - 123.000   Unicom - Uncontrolled Airport
> 123.025             Helicopter Air-to-Air
> 123.050 - 123.075   Unicom - Uncontrolled Airport
> 123.100             Aeronautical Search/Rescue, Temporary Control Tower on
> secondary basis
> 123.125 - 123.275   Flight Test Stations
> 123.300             Aviation Support
> 123.325 - 123.475   Flight Test Stations
> 123.500             Aviation Support
> 123.525 - 123.575   Flight Test Stations
> 123.600 - 123.650   FSS Air Carrier Advisory
> 123.675 - 128.800   Air Traffic Control
> 126.200             Air Traffic Control (Military Common)
> 128.825 - 132.000   Domestic VHF (Operational Control)
> 132.025 - 135.825   Air Traffic Control
> 134.100             Air Traffic Control (Military Common)
> 135.850             Flight Inspection Use
> 135.875 - 135.925   Air Traffic Control
> 135.950             Flight Inspection Use
> 135.975 - 136.075   Air Traffic Control
> 136.100             Future Use UNICOM or AWOS
> 136.125 - 136.175   Air Traffic Control
> 136.200             Future Use UNICOM or AWOS
> 136.225 - 136.250   Air Traffic Control
> 136.275             Future Use UNICOM or AWOS
> 136.300 - 136.350   Air Traffic Control
> 136.375             Future Use UNICOM or AWOS
> 136.400 - 136.450   Air Traffic Control
> 136.475             Future Use UNICOM or AWOS
> 136.500 - 136.975   Domestic VHF (Operational Control and Special Purpose)
>
> Thanks, Bob
>
>
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