On 23/05/2021 20:52, amps-request@contesting.com wrote:
I have several tetrode amplifiers that run from a 3PH 50Hz supply. With the
advent of the FT8 I have become aware that I have 300Hz sidebands at only
-50dBc, this is obviously unacceptable.
Apologies for asking, but have you tried a different driver transceiver
to see if the signal (level and/or frequency) changes?
Geert Jan
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