[Scan-DC] Mil Log from a couple days ago.. Presidential secret trip activity

[Doug K.]

Rick, thanks, interesting.  I take it that Mode IV is in addition to other 
(more sophisticated) IFF electronics, correct?

Thx!

Regards,

Doug

>From: RANGERRICK@flash.net

(snip)

>Mode IV is a little different and involves loading
>crypto.  Simply, when Mode IV is interrogated by a
>radar station (ground or airborne [AWACS]) or by air-
>to-air fighters, it will return as a �friendly� or
>nothing.  Mode IV is designed for use in combat where
>a quick ID of aircraft is needed.  I hope this is
>informative and helpful
>
>Rick
>Former AWACS guy

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