This problem came out of the blue . I was in the driveway running the engine to warm it up for an oil change and was listening SOCAL Approach...nothing better to do . Radio working fine and squelch could be turned up and down no problem . My Microair has a green lite that comes on when the squelch is turned up . Shut down , changed oil and tugged the AC back into the workshop . I had been having trouble with the fuel gauge bouncing around and knew it was just a loose connection . Tilted the panel found the loose connection . As I always do I power up the panel and check that everything is working . This time my green squelch lite is on and I can not turn it off with the squelch knob ? I know what you are thinking...another loose connection . I went thru everything and found nothing . If I remove the coax antenna connection from the back of the radio the lite goes out . OK...maybe the radio ? I have a spare radio and put that in only to find the same problem with the squelch . Bad coax connector ? Replaced it . Same result . Have a spare antenna and premade coax and attached it to the radio . Works 4.0 ?
Now I start to work down to the AC antenna . I disconnect the coax from the AC antenna and attach it to the spare antenna . Works 4.0 ? Must be a bad ground on the AC antenna . Removed the AC antenna cleaned all the attach screws , mounting holes and the skin inside the AC and the doubler mounting plate . Put it all back together and can not get the squelch lite to go out ? If Mr. Wizard is out there tell me what I am missing !
RB
