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My recently acquired (and on close inspection, genuine) TinySA with 1.1-74 firmware exhibits this behaviour. I discovered this by chance with my VX-7R, having found the carrier would disappear when I selected FM modulation, but not with AM. I happened to use the channel search function and found where the carrier is going.?

On low output with FM narrow or FM wide modulation, the carrier shifts up 160kHz while the displayed frequency remains as selected. With AM the carrier remains correctly on the selected frequency:


Low output, no modulation


Low output, 1kHz AM


Low output, 1kHz NFM


Low output, 1kHz WFM

On high output with FM narrow or FM wide modulation, the carrier shifts up 80kHz while the displayed frequency remains as selected:


High output, no modulation


High output, 1kHz NFM


High output, 1kHz WFM

The TinySA was delivered with a few days ago with firmware 1.1-12 (or thereabouts) and if my memory serves, it did not then exhibit this behaviour. Maybe someone can do a sanity check and see if this is indeed a bug.

Regards,

Liam

I experienced the same thing, although I wasn't as sharp as Liam to track down the shift in
the carrier, but just noticed that the tinySA didn't produce a carrier on the assigned frequency
when either FM or FM Narrow was selected, and would produce a modulated carrier when
AM was selected.? I had the exact same conditions, having just upgraded the firmware to
1.1-74.

Rick Hendricks
ke0gb

Will look into this.
Guess something went wrong somewhere during an update
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