[MilCom] UHF, 23-Feb-07 Z, W237A W570

[Jordan Hayes]

> Freq.     Time Z
> 364.20  1659  Magpie 89 calling Bigfoot(not heard here)about
>   mode 3477.2(Khz?).

It's likely that MAGPIE was telling BIG FOOT that their ATC MODE-C (aka 
MODE-3, aka "squawk") code was 4772 as part of a P&I ("PARROT and 
INDIA", aka "MODES-N-CODES") check, as in "MODE THREE: FOUR SEVEN SEVEN 
TWO" ... PARROT is a term used for MODE-C (get it?) and INDIA is what 
they call the "MODE 4" or AIFF transponder, I believe because INDIA 
would be the first letter of IFF, but that's just a guess.

The usual response to this kind of check would be one of "modes and 
codes are sweet" or "mode three sweet, mode four sour; recycle 
transponder" or some combination.

/jordan