On Sep 5, 2:42 am, "Mark A. Matthews" wrote:
In article ,
"John Bojack" wrote:

We've got an expensive air-park type housing development in the area (you
know the type...expensive homes on the runway)....and they've 'adopted'
using 123.3 as their CTAF.

You're looking for 47CFR87.319-47CFR87.323, which covers stations using
123.300MHz and 123.500MHz.

If the airpark is using it for unicom, ask to see their ground station
license. If they refuse to show it to you, refer to the local FCC field
office, who will ask to see their station license. It will specify the
frequencies they are licensed to use.

Field offices are listed off this website:http://www.fcc.gov/eb/rfo/


They don't need a ground station license unless they have a ground
station there. Best just to work it out politely if it's really a
problem.

(BTW, you mention that it's an expensive development. If it were a
trailer park with a grass strip, would it be okay?)