"Ron Wanttaja" wrote in message
...
stol wrote:
On Jan 21, 10:34 am, Gig 601Xl Builder
wrote:
It's time to mount my comm antenna and I am getting mixed reviews which
is better top or bottom. Since I doubt I'll be doing any rough field
landings that isn't an issue. I'm sort of leaning to it just doesn't
matter.

On my 801 with a Icom- 200 I mounted it on the bottom. You spend 99%
of the time flying and the radios you are transmitting to are on the
face of the earth, ie, under you, so the bottom seems logical.. Mine
works great down there. YMMV.

Mine is mounted *inside*. :-)

http://www.bowersflybaby.com/stories/antenna.htm

Ron Wanttaja

I had a bent Com antenna on the bottom of my Baby Belle helicopter. A
survey of its characteristics, looking from the coax fitting that connects
to the Microaire, showed a minimum VSWR of 3 accross the band. This ain't
good. I lost 25% of my range with this. I bought a straight antenna and
couldn't mount it on the bottom due to clearance and Voila VSWR accross the
band was less than 2. Beware of the bent antennas. Antenna mfr says VSWR 3
is normal.