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Low current BIAS SMPS


 

Hi,
I’ve just finished my QMX rev 4 build. Unfortunately I get in the diagnostics with PTT signal: —ON— and rf output: off a Bias Smps current of only 4.5mA. Running it with output ON I get a Bias of 0.0mA. Can you give me a hint what to check?
Thank you so much!
73 Martin
DO6MTH

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