OK, so frequency shift is always logically positive, incrementing modulo 17.
I'll get round to writing some PIC code to  make a beacn transmission with
the AD9851 chip some day.  There is not much point adding a beacon mode into
the existing board controller software; probably no space for it anyway.

I'll put out another low power test transmission tonight (Tuesday) starting
1800 UTC (or posibly even earlier, it depends if I go for a runor not),
frequency 137500.0000.  Have just seem in the documantation how to set up a
beacon mode by including text in {} so I can leave it running without having
to keep typing in new text every hour or so.

Andy  G4JNT

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