[Lowfer] Puzzle at 74.563 kHz

[David L. Wilson]

I have noticed I have a carrier at 74.563 receivable all the time.  There
are ocational bursts of several minutes of what appears to be modulation on
it.  Anyone else see this?  The attached is a past of part of an Argo
waterfall pasted into WSPR-X waterfall.  Ther receiver was tuned for 72.94
kHz usb so 1623 Hz+72.940 kHz =75.563 kHz.

--
David L. Wilson
dwilson314 at verizon.net

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