Mike Harris wrote:
Hi,
Anyone else seeing a birdie on 28004.9+/-?
With no antenna, CW, 500Hz hardware filter, 50Hz DSP, I see DISP readings:
-21dBV pre-amp OFF
-1.4dBV pre-amp ON
In either case the ATT makes only another -2dBV difference.
It doesn't display on the S-meter but given many workable signals don't on
10M it is relevent.
I don't hear a birdie on that frequency, but centred around there is a
broad peak of rasping noise and transient carriers that only appear
while rotating the VFO A knob.
--
73 from Ian GM3SEK
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