w9cll is correct. You usually only need to "crack open" the gain on most power mics with a fresh battery in for them to work properly.
The mic I'm using has compression built in so I do not use that function in the radio. I set the mic gain on the both the mic and radio accordingly to achieve proper modulation on the O-scope without pumping the ALC too much, then drive the system while watching for any harmonic spurs on the analyzer. It is somewhat interesting to note that leaves the radio mic gain at about 10 o'clock and the mic's gain pot at 8 o'clock to get 100% modulation. Similar with the radio's adjustable RF power pot set at 8 o'clock in the AM mode to get the desired 10 watt carrier & 40-50 watt swing for cleanliness without being in the weeds.
See the pattern here? "all knobs to right" folks need not apply
If you power mic is just too hot for the radio you can add a "T-Pad" circuit in line with the mic. Basically it's just a few resistors. It can be found here:
http://www.uneeda-audio.com/pads/
The mic I'm using has compression built in so I do not use that function in the radio. I set the mic gain on the both the mic and radio accordingly to achieve proper modulation on the O-scope without pumping the ALC too much, then drive the system while watching for any harmonic spurs on the analyzer. It is somewhat interesting to note that leaves the radio mic gain at about 10 o'clock and the mic's gain pot at 8 o'clock to get 100% modulation. Similar with the radio's adjustable RF power pot set at 8 o'clock in the AM mode to get the desired 10 watt carrier & 40-50 watt swing for cleanliness without being in the weeds.
See the pattern here? "all knobs to right" folks need not apply
If you power mic is just too hot for the radio you can add a "T-Pad" circuit in line with the mic. Basically it's just a few resistors. It can be found here:
http://www.uneeda-audio.com/pads/