For owners of the TRX Kenwood TS450S, the manufacturer has a fixed microphone processor controlled only by OFF and ON. I took the trouble one day and looked at the wiring. This indicated what can be changed to weaken the difference between the switching of the compressor and its unbearable compression.
If someone wants to modify it, I recommend replacing C171 with 2.2mf/16V, this replacement is not necessary, it just shifts the power. control to higher signals and on the bottom side (connection side) at IC15 is switched via a 100ohm transistor- R232 against the ground, which must be replaced with a value of 480ohm SMD. Of course, technical skills and equipment are required for this work. Navigation will help in the picture. It is at your own risk. For me, the compression level decreased by about 20%, which is sufficient and moderate in operation. There is no other modification of the NF processor.
OM5AMJ