In the Northwest, 123.45 is assigned to the Boeing Company Flight Test
Department. This is a long and complicated URL, but it is a somewhat
up-to-date list of companies assigned to use 123.45.

http://gullfoss2.fcc.gov/cgi-bin/ws....00123.45000000

We use the aviation radio frequencies as a privilege, not a right. Don't
make up your own rules.

Bob Gardner

"gerrcoin" wrote in message
...
Just to add that transmissions from an aircraft can travel much further
than ground transmissions. So just because you never hear anything on a
particular freq does not mean that you will not cause interference on it.
Airport receivers have quite good reception and certain atmospheric
conditions can boost the propagation of radio signals by a surprising
amount. Stick to assigned freqs or, as peter has mentioned, 123.45 is
considered to be a common chat channel.