Note the short stub antenna on the Orange fuselage



Absolutely correct, as I said in my previous post it should be more of a concern with 2.4ghz due to the fact that the higher frequency does not " penetrate " as well as lower frequencies. Yet in spite of that the standard install is to have 2.4ghz antennas internal. A good example is this lineup of my contest sailplanes. Note that the two white sailplanes have Kevlar construction and the antennas are internal. The Orange sailplane is CF construction and has its antenna ( just the last 1/2" ) external. All 3 sailplanes have topped 1,500 ft in multiple locations. Like I said to Appowner. Keep in mind that when it comes to the hobby I have more experience and at more then just an armature level!