Thanks all.

Is it "always" USB ?

Bob
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"Caveat Lector" wrote in message news:D1I4b.22829$S_.19639@fed1read01...
At http://www.canairradio.com/hf.html

MWARA = Major World Air Route Areas (MWARA)
Frequencies are given there
(NAT - A) = North Atlantic Family A
From Signal In The Noise But MDS
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"Robert11" wrote in message
hlink.net...
Hello:

What is:

MWARA and NAT - A ?

Thanks,
B.