Jetguy From , joined Dec 1969, posts, RR: Posted (12 years 3 months 6 days 8 hours ago) and read 6459 times:
I'm having a "cerebrial flameout" right now. I know that the air to air frequencies are 122.75 and 123.45, but where does it say that? I've checked the AIM, but evidently I'm not seeing it.
OPNLguy From , joined Dec 1969, posts, RR:
Reply 2, posted (12 years 3 months 6 days 7 hours ago) and read 6381 times:
I'll be home in awhile, where I have a Summit CD, and I'll search the AIM, as well as FAA 7110.65.
Since when has 123.45 been an *approved* air-to-air freq? I know that's what many folks use, but every once in a while, FAA/FCC goes on a tear, lobbing the threat of standard $10K fines to keep folks off it. Something change, that I missed?
Flyf15 From , joined Dec 1969, posts, RR:
Reply 4, posted (12 years 3 months 6 days 2 hours ago) and read 6359 times:
In the AIM under 4-1-11 you'll find that the air to air frequencies are 122.75 and 122.85.
After quite a bit of searching I found that 123.45 is indeed an air-to-air frequency. But, not of the same type as the ones mentioned above, it has a more offical use. It is used to relay information to/from ATC and an aircraft when the aircraft is out of range and the information must be relayed between another aircraft which is in range of both the ATC station and the aircraft in question. It is also used for contacting other aircraft during search and rescue or distress situations when 121.5 is not available.
This info can be found in the "North Atlantic International General Aviation Operations Manual"
Jetguy From , joined Dec 1969, posts, RR:
Reply 5, posted (12 years 3 months 6 days ago) and read 6336 times:
Thanks guys! I was looking right at it and never saw it. You're right about 123.45 being an "oceanic" air to air frequency. Cerebrial flameouts are not a good thing! Thank goodness they don't happen very often.
B747skipper From , joined Dec 1969, posts, RR:
Reply 7, posted (12 years 2 months 4 weeks 1 day 5 hours ago) and read 6239 times:
Air to air frequency in the world - as well as plane to plane on ground or not, always was 123.45 - at least since I started flying in the early 1960s... US/FAA designated other frequencies like 122.90 or 122.97 etc. and only recently approved 123.45 but for use over oceanic and remote areas... 131.8 no longer is the No. Atlantic plane to plane, now it is 123.45...
Over oceanic areas, I keep one VHF on 121.5 and the other on 123.45... Some areas of the world designate other plane to plane frequencies i.e. Africa remote areas is 126.7...
Look on your Jeppesen hi altitude enroute charts, the applicable plane to plane frequencies are indicated...
Be also aware that in remote areas where the ATC center is "off the air" for whatever reason, planes are still communicating with each other on that published frequency for traffic separation or other info...
Last one to mention, if I remember well, US/FAA has a "plane to plane" frequency for low altitude, and one for high altitude... I think high altitude is 122.97...
Over and out...