Hello fellow CBers!
Last night got my two Cobra 140 GTL radios off the shelf, and it was shortly after I noticed my mic's audio being way too loud.... This was using one of those 5 pin to 4 pin adapters. I tested various 4 pin microphones and all did the same exactly thing. Normal talking and it was too loud to the point of distortion.
I found my 5 pin Uniden microphone from a Grant XL radio, and that microphone sounds great! No distortion and no clipping. Audio sounds normal. I did notice the 142 GTL has a Dynamike adjustment whereas its missing from the mobile version. I followed the wires and noticed the area it went right into on the board. On the mobile version, it just goes straight off the microphone jack to the board. It got me thinking, is the way the 4 pin to 5 min microphone adapter wired up the issue? The two pins for Common and Shield are tied together. Surely doing that wont upset the radio and make it too sensitive and over modulate?
Only thing I can think of trying would be is to put a potentiometer in the spot and try to see if adjusting it will back off on the sensitivity from the mic.
Anyone else had this issue? Thanks for reading. Have a great day everyone.
-Doffo 898
Last night got my two Cobra 140 GTL radios off the shelf, and it was shortly after I noticed my mic's audio being way too loud.... This was using one of those 5 pin to 4 pin adapters. I tested various 4 pin microphones and all did the same exactly thing. Normal talking and it was too loud to the point of distortion.
I found my 5 pin Uniden microphone from a Grant XL radio, and that microphone sounds great! No distortion and no clipping. Audio sounds normal. I did notice the 142 GTL has a Dynamike adjustment whereas its missing from the mobile version. I followed the wires and noticed the area it went right into on the board. On the mobile version, it just goes straight off the microphone jack to the board. It got me thinking, is the way the 4 pin to 5 min microphone adapter wired up the issue? The two pins for Common and Shield are tied together. Surely doing that wont upset the radio and make it too sensitive and over modulate?
Only thing I can think of trying would be is to put a potentiometer in the spot and try to see if adjusting it will back off on the sensitivity from the mic.
Anyone else had this issue? Thanks for reading. Have a great day everyone.
-Doffo 898