?I recently (a month ago) purchased a x6100 and an XPA125b amplifier and I m having this issue..a link of a video to help you explain myself
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watch the power meter on the xiegu when I press the PTT button and holding the mic ...it modulates without saying anything...this only happens when the amplifier on the xiegu x125b is on....also when I select the built-in mic this problem doesn't occur even with the PA set to on ..only with the hand mic ..gain is set to 15 ..tried factory reset, swapping the mic cable the other way around ,trying a different cable nothing.. problem still occurs.
Update : i put a pair of headphones on and increased the monitor level to listen to the signal...all i hear is noise with some low level distorted audio in the background...and this issue also occurs when i select the built in mic and press the PTT.
In the beginning i thought it was a faulty hand mic but now that i se that the problem exists even built built in mic , i am starting to believe it is an amplifier issue...