Coast Guard Modes ?

[BOBRR]

Hello:

New at this, and am a bit confused over what are the modes used by the Coast Guard
for the following:

345.0 MHz

237.9

326.15

379.05

Are these (all) FM ?
The last two are apparently air to ground, so are they AM ?

If someone could pleasae peg these 4 for me, would be most appreciative.

Thanks,
Bob

 

[Barney6]

They are all AM, Chuck.

 

[kb2vxa]

Hi Bob and readers,

The first two are operations, the last two are aircraft.

Work hard, play hard, party hearty! Just don't party on Sunday or you'll regret it on Monday.