Gentlemen, I am 1/4 owner in an RV-9A, but only two of us are actually building the thing. In any case, the other builder and his buddy, who are doing most of the metal and painting while I deal with electronics, installed the flaps, rods, flap motor, etc. Problem is they cannot find any of the docu...

Putting the final wiring touches on the panel of my RV-9A and just installed the GPS antenna. Every other GPS antenna I've ever seen had a BNC connector, and I paid no attention to the Garmin GPS antenna I installed on my RV. Well, I finished running the coax, upon which I dutifully installed a BNC ...

Gentlemen, I have searched the posts and cannot find the answer based on my search, so here goes: I have a brand new YIO-320-D1A installed in my not-yet-flying RV-9A. In wiring the ignition switch, I have to configure jumpers a certain way depending upon whether the left magneto is a "retard breaker...

Thank you, Brantel. Your explanation and instructions were MUCH simpler than those provided by the guy that built the harness.

Gentlemen, I am wiring a KT76 with a Garmin 430W and a Dynon FlightDEK 180 which uses an "encoder." I paid to have a wiring harness done, and the manufacturer said "There are isolation diodes needed between the transponder and the 430W. This is becauwe the transponder does not have internal diodes w...

Anybody know of a source for the service manaul for this radio? The frequency display has gone out, and the service center wants almost $700 to fix it. Since I am NOT installing it in a certified aircraft but only use it at the CAP Squadron Building for ground comms, a HAM radio buddy that repairs r...

As I install each item in my panel I am hitting it with 12 volts to make sure everything fires up. I prepared the Molex plug for my KT76 and hit it with 12 volts (all the while with the antenna output attached to a 50 ohm dummy load.) As soon as it powered up, I heard a high pitched hum. Not loud, b...

I need help finding a part! Instead of spending a couple of hundred bucks on avionics fans, I figured that I could use the cabin air intake on my RV-9A and just shoot that air over the avionics. Problem is I want that air for the cabin as well. I would like a Y adaopter to put behind the panel where...

I'm building an RV-9A. Dynon's remote compass, as well as others I'm sure, requires mounting it away from Ferrous metals and electronics. The only place I can think of right now is slap dab in the middle of the fuselage on some kinda plastic mount. I welcome all ideas, however, from those who have i...

I've been looking for ways to cool my Dynon FlightDEK 180, Garmin 430W, and assorted expensive gizmos. Lone Star AViation Copr makes a huge colling fan for about $170 (the Cyclone-21) with 3 outputs. That seems kinda steep to me. I was thinking of installing 2 14V computer-type cooling fans in the G...

Gentlemen, me and two other guys are building an RV-9A. I am responsible for electric--they are doing the riveting and cutting. They already installed the flap motor and the Lycoming 0-320 FI Engine's fuel pump. Problem is they did not keep up with the documnetation. I, of course, have to wire the t...

I am a ham radio operator, so I am pretty sure that almost any antenna outside will receive a marker beacon signal--in other words I dont' have to buy one of the expensive ones, and can probably install a cheapie COM radio antenna underside to receive the marker beacon. Anyone disagree? If so, why? ...