I finally found a great RV9A and flew it home yesterday. All systems functioned normally except the second com, a Narco Com 810 TSO, did not function as it should. Here is how it operated: 1. With the squelch nob in and not tuned to a channel with any activity, no hiss (normal). 2. With the squelch nob pulled, hiss (normal). 3. When receiving a transmission, either AWOS, ground, tower etc., very weak, and the exact same hiss sound as if the squelch button were pulled accompanied the received transmission (not normal). 4. Could not pick up AWOS until on the ground at the airport, with or without the squelch button pulled, and again, any reception was accompanied by the hiss sound (not normal) and reception was very weak (not normal). At times, center could hear my transmission on this radio but they said that it was weak and not as clear as the number one radio, a Garmin 430 Wass (not normal). The audio panel is a new Garmin and works fine and I know how to use it so I don't think the problem is in the audio panel.
Any ideas where I should start looking for the problem? Although the radio is old in years, it was installed new in the plane 1 year ago, so the radio is in effect, new. Thanks, Curt
Any ideas where I should start looking for the problem? Although the radio is old in years, it was installed new in the plane 1 year ago, so the radio is in effect, new. Thanks, Curt
