I recently finished assembling my GB Ultimate ARF. Took it out for a test fly on a really rotten day (mid 40's, 25 mph wind, clouds). Did a range check with the engine (ST 90) off. Couldn't do one running as there was nobody else at the field. Everything checked out ok. Took off, and within 5 secs got a strong radio hit. Throttled back flew around for about 20 secs more and got another, so I landed.

Here's the question, I used the very convenient pre-installed antenna tube, even though it runs parallel to the metal pull-pull cables for the rudder. Yes, I knew that was a bad idea, but figured maybe they were smarter than me. Long story short, has anybody else experienced these kind of problems???? I did move the antenna but haven't had a chance to try it again yet.