Bandpass Filters | mcHF QRP transceiver
m0nka Post author June 27, 2014 at 7:37 am Hi, I didn’t find use for the biasing in the BPFs, i can see clearly why it is needed in a RX/TX mixer. But in the last version of the RF board, i have decided to add it as an option, as i can see very fast PTT s...