I see the most common place to install the GPS antenna is top-side just behind the rear window.
-Where did you install yours?
-If installed top-side behind rear window, where did you run the wires?
Thanks
Consider mounting it at the top of the firewall inside the cowling. Mine is there on the RV4. Much shorter and easier antenna run. I have a very small shelf just wide enough for two antennas. The WAAS GPS antenna for a GNS 480 and one for the Dynon Skyview sit on it right beside each other. Reception is excellent. Testing revealed it was the same as mounting on top of the fuselage. I like that they are not visible as well.
I have four GPS antenna mounted in this manner, including the WAAS GPS for ADS-B. Never had a problem. The heat under the cowling doesn't seem to bother them and they pick up satellites just as easily as an external mount.
Consider mounting it at the top of the firewall inside the cowling. Mine is there on the RV4. Much shorter and easier antenna run. I have a very small shelf just wide enough for two antennas. The WAAS GPS antenna for a GNS 480 and one for the Dynon Skyview sit on it right beside each other. Reception is excellent. Testing revealed it was the same as mounting on top of the fuselage. I like that they are not visible as well.
Consider mounting it at the top of the firewall inside the cowling. Mine is there on the RV4. Much shorter and easier antenna run. I have a very small shelf just wide enough for two antennas. The WAAS GPS antenna for a GNS 480 and one for the Dynon Skyview sit on it right beside each other. Reception is excellent. Testing revealed it was the same as mounting on top of the fuselage. I like that they are not visible as well.