[GreenKeys] Teletype on 4.004 Revisted

[Duncan Brown]

it is strong in upstate NY also.  I can hear it in the house on a 
portable with the whip down all the way.

Maybe we need to set up a DF net.  Anyone have an AN/PRD-1??

Duncan
USASA 31J

On 24-Nov-13 18:41, NNN7DXB at aol.com wrote:
> Richard:
> Thanks for that report. That 4.004 RTTY is still there again, right on 
> time,
> and sounds close enough to be in the next room here in SC. Very strong
> and very clear.
> I am amazed you can hear it in Los Angeles. We know from another in
> the group that it is (was) also heard in Indiana.
> Dave
> ------------------------------------------------------------------------------------------------
> In a message dated 11/24/2013 10:39:59 A.M. Pacific Standard Time, 
> 1oldlens1 at ix.netcom.com writes:
>
>
>     ----- Original Message -----
>     From: "Jim Haynes" <jhhaynes at earthlink.net>
>     To: <NNN7DXB at aol.com>
>     Cc: <greenkeys at mailman.qth.net>
>     Sent: Sunday, November 24, 2013 9:30 AM
>     Subject: Re: [GreenKeys] Teletype on 4.004 Revisted
>
>
>     > My understanding is that modern crypto equipment emits a
>     > continuous stream
>     > of random-looking bits and they keep it up regardless of
>     > whether there
>     > is traffic, so as to foil traffic analysis.
>     >
>     > When the transmission starts at precisely 5PM it may be
>     > running in
>     > parallel with transmission on another frequency used
>     > during the daytime,
>     > so the receiver can switch frequencies without a break in
>     > traffic.
>     >
>     > jhhaynes at earthlink dot net
>
>          I hear those same signals in Los Angeles.  I think I've
>     also heard them on other frequencies, for instance near 8
>     mhz but didn't make any notes. Same thing here trying MMTTY
>     both A and D and some other programs, it _sounds_ like
>     regular RTTY but isn't. It decodes (if I can use that term)
>     to nonsense. If this is encrypted military traffic it would
>     be interesting to know who is using it and why. Evidently
>     plain old HF has some advantage over satellite for somebody.
>     Goes along with the "counters".
>
>
>     --
>     Richard Knoppow
>     Los Angeles
>     WB6KBL
>     dickburk at ix.netcom.com
>
>
>
>
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