Flying again!
Well Known Member
Last week after I fired up the radios my SL-30 gave me a "Comm Failure" and would not allow me to change frequencies though it did have ATIS (last channel tuned) intermittently. Cycling power gave the same result. After flying, I pulled the radio, checked the pins to make sure they were clean and replaced the radio. Upon power up all was fine until the next morning when i had the same failure again. I removed the radio, cleaned the pins, and reinstalled, still had ?Comm Failure?. ![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I took the radio to a local Avionic shop and he powered it up on the bench and it works fine for a day of periodic cycling etc. So the radio checks out ok on the bench but not in the airplane. He then disconnected the antenna and turned the unit on to see if that would induce the failure (no transmitting w/o antenna). It worked fine with no failure noted.
Question, is there anything on the aircraft side that can induce this failure? The radio is linked to my GRT Sport to enable frequencies to be loaded from the EFIS. With this failure, the GRT showed a failure in the serial communication with the SL-30. I do not think anything on the GRT side could cause the SL-30 to have a ?Comm Failure?.
I would appreciate any thoughts or ideas on this. The installation has worked great for the year I have had the aircraft.
Thanks
I took the radio to a local Avionic shop and he powered it up on the bench and it works fine for a day of periodic cycling etc. So the radio checks out ok on the bench but not in the airplane. He then disconnected the antenna and turned the unit on to see if that would induce the failure (no transmitting w/o antenna). It worked fine with no failure noted.
Question, is there anything on the aircraft side that can induce this failure? The radio is linked to my GRT Sport to enable frequencies to be loaded from the EFIS. With this failure, the GRT showed a failure in the serial communication with the SL-30. I do not think anything on the GRT side could cause the SL-30 to have a ?Comm Failure?.
I would appreciate any thoughts or ideas on this. The installation has worked great for the year I have had the aircraft.
Thanks