[Fwd: [MV] UNCLAS//708//[MV] HYX-57/TSEC Help identify?]

From: rertman@ix.netcom.com
Date: Mon Oct 02 2000 - 09:45:11 PDT


The HYX-57 is used to connect a handset to the remote control unit for
the KY-57 crypto unit. The KY-57 is the ground version of the KY-58
crypto box used in aircraft. It will encrypt voice and/or data (but not
at the same time). It's a wideband device (16 Kbps) and can operate
directly with radios that are capable of handling the wideband encrypted
signal. It also does a lot of other neat stuff, but it's still in
current use, so I can't get more detailed than that.

Enjoy,

Dick

"Rayfield, Robert S Jr Mr DUSA-IA/ANTEON" wrote:
>
> THIS IS FOR INDIVIDUAL THAT ASKED ABOUT HYX-57/TSEC.
>
> 1. HYX-57 is an older, but still in-service
> "Encryptor-decryptor" piece of COMSEC. Our resident "really knows his
> stuff" guy (former signal maint NCO) indicates that a HYX-57 performs the
> same encryption-decryption function on a wire line. Such would be used
> to ensure that a "lima-lima" is "secure". It would be used like an
> AN/GRA-39 for "remoting" operations. However, the latter device is not a
> "secure" device. Beyond, this, this outfit doesn't deal w/them thar
> things; so, I hope this info helps.
>
> 2. Will fax p. 4-44 out of our SINCGARS Ground Combat Net Radio (CNR),
> Integrated COMSEC (ICOM) Operator's Manual TM 11-5820-890-10-8m, 1 Dec 98
> (latest) (para 4.11e), regarding "Use of Wire Line Adapter, HYX-57; and
> include the following page, which addresses that GRA-39, noted above.
>
> 3. Send fax no.
>
> R
>
> -----Original Message-----
> From: Edward Greeley [mailto:etgreeley@worldnet.att.net]
> Sent: Sunday, October 01, 2000 11:31 PM
> To: mil-veh@mil-veh.org
> Subject: Re: [MV] HYX-57/TSEC Help identify?
>
> Can't tell identify the HYX-57 specifically, but items having the TSEC
> designation are cryptologic devices.
>
> Ed Greeley
>
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