On Saturday, December 5, 2020 at 10:16:08 PM UTC-5, wrote:
I found a major improvement in range when I moved from a single antenna over the glareshield to dual long antennas on the canopy sides of my ASW-27.

I did Range Analysis on six installations and documented the results in the 2019 Free Flight. Look for Antenna Placement:

http://sac.ca/index.php/en/free-flig...ight-vol-libre
Hi George,

I read with interest your FF article on FLARM range analysis. I fly a Discus-2 (carbon fuselage) out of Gatineau Gliding Club. My FLARM gets marginally acceptable range so I am tempted to fit a second antenna as you showed.Â*Â*Before I do this however, I want to ask how you know you are transmitting a uniform pattern?Â* While two antennas improve receiving signals from other aircraft, with only one antenna transmitting, as currently permitted, is it possible that your setup gives uneven transmission range on different bearings around the glider? Glad to hear your thoughts on this.

Ian IN