Hi, I am John from Serres,Greece and this is my first post. Yesterday, I decided to push my P3P to the limit. The aircraft flew to 10,000ft with solid signal and after 2 "WEAK SIGNAL" warnings and at 12,000ft I got the "NO SIGNAL". Aircraft auto-switched to RTH and about three minutes later connection re-established.So, it's good to know that these safety features are working as they should. Everything was stock.Dashware in metric.