I have 2 BitX40s one on 40 meters and the other is converted to 80 meters. I talk often with a group of amateurs on 80 meters mostly using a TS830s so they have a clear idea of my audio. When I use the BitX40/80 they say the audio is a bit muffled. I have 2 mics that I can use, one is a realistic CB mic that has an electret element in it and the other is an old dynamic mic that I have removed the dynamic element and substituted the electret element that came with the kit. I have recorded my own audio by transmitting into a dummy load and receiving on another rig, I have to agree the audio is a bit muffled on both rigs and with both mics. The realistic mic is a bit better than the converted dynamic mic. Now to the questions.
Has anyone modified the audio amplifier to improve the transmit audio quality? if so what did you change?
Also I would like to increase the gain of the mic amp but as I am very rusty on my electronic theory I am not sure on how to go about it. All advise gratefully received.
--
Mike VK3XL
