On Thursday, October 2, 2014 11:50:30 AM UTC-4, Bob Caldwell (BC) wrote:
On Wednesday, October 1, 2014 1:43:06 PM UTC-6, wrote:

Some people use a directional yagi antenna on the canopy and a omnidirectional one behind the main gear. This combination seems to work very well with otherwise problematic carbon fuselages.



How is the secondary antenna placed? The one I received is flat but is supposed to be in a vertical attitude. I can't find a place that works in my mostly carbon Ventus. I think the blind spot issue is significant. My main dipole is mounted on the glare shield and I get good performance when the line of sight doesn't go through the carbon fuselage. It is easily noticed while thermalling when an alert disappears and reappears depending on the obstruction.

I have a carbon Ventus 2B in France. I have a dipole antenna on the instrument panel cover and a second larger antenna installed projecting about forty five degrees downward from the exterior fuselage on the right,just ahead of the gear doors. I paid professionals to do the mounting of my powerflarm and antennae(as well as the Butterfly vario and sensor box; its great!). This arrangement, I was told, was the best solution for the flarm in the ventus. I must say, it has never failed me. Where I fly in France, the glider traffic is very dense (some days like rush hour traffic) and it has never failed me. BTW, in the glider dense area of the Alps, Flarm is required by law. Tow planes must have it also.