Have Skyview with the SL40 garmen, standard package.
When I transmit, I get a feedback hum or tone that sounds like something above 200 cycles/ sec. This occurs with the engine not running, and nothing on except skyview in addition to the radio. I have tried adjusting all the available adjustments in the radio itself with no success. sidetone, mic squelch, etc. The hum does not change frequency with any adjustment. I think I note a slight reduction in the hum volume with the sidetone set to 1.
Anybody have any ideas?
When I transmit, I get a feedback hum or tone that sounds like something above 200 cycles/ sec. This occurs with the engine not running, and nothing on except skyview in addition to the radio. I have tried adjusting all the available adjustments in the radio itself with no success. sidetone, mic squelch, etc. The hum does not change frequency with any adjustment. I think I note a slight reduction in the hum volume with the sidetone set to 1.
Anybody have any ideas?