Been a bit busy with those household things that have to be done after being closed up all Winter but did manage to at least get some work done mounting my GPS antenna for the GPS 20. The mount was a bit more fun to build since where I was putting it had no right angles that I could reference (hence the ruler clamped down the center of the opening). Got the basic shape dialed in with paper and then moved on to cardboard to get the sides right. Finally cut it out and bent it up in a pan brake. I made this mount out of .032 6061-T6 since the antenna isn't exactly a heavyweight and the loads were distributed on three of the four sides (OK fine..... it was easier to make and fit using the thinner material) I decided however to add a doubler for the actual antenna mount out of .063. I patterned it after the doubler that Garmin spec'd for externally skin mounting the antenna to aircraft. Got the doubler riveted in and mounted the antenna. The antenna will be covered by the baggage sack but should not have any impact on the ability to receive L Band GPS signals.