We are experiencing noise on transmissions when nothing is being said. In other words, while transmitting and you stop talking the background noise gets louder. When a word is spoken the noise floor immediately goes back to normal until you stop talking again. It reminds me of AVC or AGC where a circuit is adjusting the level of audio.
The configuration is two 1258 units purchased several years ago as a pair, serial # 4262 and 4032 . The following info is the same in both original units:
PID 4
Version 5
HW 6
Software 2.91
Bootloader 1.9
Compiler 4.6.2
Build Jun 16 2016 07:13:13
A standard non-amplified microphone is used.
When I use my newer 1258 control head the problem does not happen. Serial # 9964. The difference between my control head and the older one is that mine is Version 7, HW 8.
PID 4
Version 7
HW 8
Software 2.91
Bootloader 1.10
Compiler 4.6.2
Build Jun 16 2016 07:13:13
Do you have any idea why this is happening? As I recall, it happened in previous software builds.
73, Joe K1ike
