Stan,toggle quoted messageShow quoted text
Start with bias presets RV2 and RV3 at fully clockwise.. which is Zero in the uBitxs layout.
Key PTT and measure current consumed. Advance one preset to get 100mA more and the
second another 100mA more after first one.
Limit power supply to 1-2A, if current jumps then replace that preset.
At 16/11/2021, you wrote:
Thanks for that info, Raj. Very helpful! Youíve given me a great place to start and PA bias needs to be set regardless after replacing the IRF510s.