[Premium-Rx] FHSS traffic on 40m

[Ben Mesander]

Hi,

  In the last couple months I have noted the hopper
you mention operating in these frequency ranges.

  7300-7500, 7265-7465, 7000-7200, 7370-7470

  The width always seems to be a multiple of 100kHz.
The user seems to prefer operating over bc and ham
bands, presumably to make detection and df more
difficult.

  The hop speed seems to be .02s (50 hops/sec) near as
I can measure.

  I am always interested in logs of obscure or complex
HF signals, please feel free to email me any logs
directly.

  I do not know the user or the modem in use. There is
a HF system of Russian manufacture that runs at 50
hops/second, but I am sure there are others.

Regards,
Ben



 
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