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  1. YaesuFT847
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Re: loss of hf+6 tx

 

Looks like your PA is self oscillating! Check decoupling caps and earthing

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On 19 Sept 2024, 12:02, at 12:02, Shayne Jones <shayne109@...> wrote:
The pa itself seems fine It's pulling around 17amps on 6 but if I look
at the output via an sdr the emission looks like an over horizon radar
on every mode (numerous peaks close spaced and about 300k wide) with or
without modulation and shifted some 500k high of the dial frequency.
Receive is perfect fine and 2/70 performs normally.
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