Subject: Re: [FedCom] Encryption and Aircraft Radios/The Answer

[Chris Parris]

AllanStern@aol.com wrote:

> My thanks to Chris Parris, Blaine Brooks, and Jeff Multer for responding.
> I do listen to 165.2375 and hear comms nearly every day, in fact just heard
> what may be OTAR on that freq a few moments before typing this.  I heard a
> sweeping sort of digital sound that I have always thought was ANDVT comms.
> It is usually 8 distinct sweeping white-noise type sounds.  Is this OTAR?

That was it, Allan. It does sound a little like ANDVT comms, and it does have
some distinct, sweeping cycles. I usually count between 8 and 12 "cycles" of
this noise, and you will usually hear a little short "reply" chirp of data at
the end from the radio that is being re-keyed.

--

Chris Parris
Beaverton, OR
cparris2@compuserve.com