Thanks to BDH we now have a VHF Antenna, thank you Des. I screwed it in today and I have not recieved one single transmission yet. I must have got a dud antenna, just as well I have not paid for it yet. The antenna is a RAMI AV-10. It is designed to operated up to 50.000 ft and 350 mph (304 kt), just as well as it is going on to a Sling 4 with a 914 engine.( will be pushing the Antenna to its design limits- NOT! ).