PM1500 Mic gain settings, default settings seem too hot
Posted: Wed Feb 26, 2014 6:10 pm
After programming some PM1500's, the mic gain seems way too hot with std settings. I can hold one hand about 3ft from the mic, snap my finger and clearly hear it over the sevice monitor. These are programed conventenal VHF narrowband freq.
In the "Conventional personality" "Advance" tab, I set the "Advanced RF AGC" to: "standard" Then set "Analog fixed gain" in "Tx audio control per mode" tab to: -6 and "AGC": output -6 and total -6 which is in the same tab, lower part of the tab.
Seems to have made it much better and my audio seems loud enough with my lips upto 2 1/2" away from the standard PM1500 mic. These are going in heavy long haul deisel trucks.
In the "Conventional personality" "Advance" tab, I set the "Advanced RF AGC" to: "standard" Then set "Analog fixed gain" in "Tx audio control per mode" tab to: -6 and "AGC": output -6 and total -6 which is in the same tab, lower part of the tab.
Seems to have made it much better and my audio seems loud enough with my lips upto 2 1/2" away from the standard PM1500 mic. These are going in heavy long haul deisel trucks.