[Spooks] XSL

[Utility World (Hugh Stegman)]

I didn't see anything in the spectra on hfasia that I haven't determined
looking at audio FFT spectra around here... it's an MPSK with kind of an odd
tone spacing, which for whatever reason flips over 11 times a second.  The
ham PSK31 flips the phase on idle too, making a spectrogram that looks like
a DNA molecule.

It's too bad he didn't say why he thinks it's Japanese Navy, though I am
inclined to agree from previous educated guesses that the Slot Machines are
found unless someone comes up with something better.  Now we can all go drop
our quarters into the transmitters... between traffic bursts...

The little tune is almost certainly a sync idler of some sort.  The hiss
(when the tune stops) is why the station's there.  One guy with some
experience said it sounded to him like an encrypted FAX or similar data.

One question left is: do stations request the traffic on duplex freqs we
don't hear, or does it just broadcast?

-hugh

Hugh Stegman  NV6H   34N 118W
MT Utility World
http://www.ominous-valve.com/uteworld.html