Quick test to see if the final and driver transistor both have enough bias current with no drive.
Clarify the radio's signal on a second radio. Turn down the mike gain on the test radio until the peak power is below 2 Watts. If it sounds gritty this way and clears up at higher power levels, you need more zero-signal current. maybe on the driver, maybe on the final, maybe both. Doesn't tell you where to look, just whether or not to look.
73
Clarify the radio's signal on a second radio. Turn down the mike gain on the test radio until the peak power is below 2 Watts. If it sounds gritty this way and clears up at higher power levels, you need more zero-signal current. maybe on the driver, maybe on the final, maybe both. Doesn't tell you where to look, just whether or not to look.
73
