[Spooks] XSL Question

[Zack Widup]

Hi Mike,

It could very well be. We really don't know.

I do know that it spends most of its time idling (the "doodle-deedle"
sound as I like to call it) and every once in a while breaks away from
that to send data. I also know that the signals on the various
frequencies are never of equal strength here. I suspect that, if the
signals on the various frequencies emanate from the same location and
are of about the same power level, that they are from beams pointed in
different directions.

There is a song done by Joe Walsh that has a melody which sounds
somewhat similar to the XSL notes. I've often wondered if it was
patterned after that. Joe is a radio amateur, WB6ACU. Food for thought
...

73, Zack (W9SZ)


On 10/27/11, Mike Tibor <tibor at tibor.org> wrote:
> Visit http://mailman.qth.net/mailman/listinfo/spooks to unsubscribe from
> this list
>
> After listening to XSL (Slot Machine) on 8587.5 kHz this evening for a
> bit, it strikes me that it sounds an awful lot like the other HF radars
> I've heard, but with the tone sequences.  I haven't found any similar
> speculation in my google searches though.
>
> Everything I've found via google searches seems to simply repeat the same
> thing--that it's some kind of telemetry transmission from the Japanese
> Military.  I find it very odd that anyone would transmit telemetry for
> anything on 8 - 13 frequencies (or more) where that telemetry repeated the
> same pattern for hours.
>
> Why couldn't this be some multi-frequency HF radar, but where the
> frequency spread was very narrow, centered on each of the well known
> frequencies?
>
> Or maybe even a mix of data interleaved with radar pulses?
>
> I'm new to this, so be gentle.  :-)
>
> Mike
> ______________________________________________________________
> Spooks mailing list
> Home: http://mailman.qth.net/mailman/listinfo/spooks
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Spooks at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>