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Old June 9th 17, 02:58 AM posted to rec.aviation.soaring
Dan Marotta
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Posts: 4,601
Default Flarm Range Analysis

Here are those pictures you asked for:

https://www.dropbox.com/s/nd4z1itc0i...41.15.jpg?dl=0
https://www.dropbox.com/s/fxt1nog20c...23.34.jpg?dl=0
https://www.dropbox.com/s/banwv1ljv1...23.23.jpg?dl=0
https://www.dropbox.com/s/2bqq8ez1ag...22.30.jpg?dl=0

Hope that helps. I know it would help with my reception to place the B
antenna on the bottom of the aircraft, but that would be a pain in the
behind - hardware, cabling, convincing the IA to sign off the
installation, etc.

Dan

On 6/8/2017 8:42 AM, Dan Marotta wrote:
I'll try to remember to get a picture but here's a description:

The Flarm portable is mounted to the top center of the glare shield on
the Stemme. The B antenna is mounted through a grommet directly in
front of me (left side) and about 6 inches forward of the aft edge of
the glare shield. The A antenna is mounted in the same location on
the right side of the glare shield (right side) and the ADS-B antenna
is mounted about 6 inches in front of the A antenna. The GPS antenna
is mounted on top of the glare shield near the forward center. I cut
the coax cables to length and ran them along the under side of the
glare shield cover where they exit their own grommets a couple of
inches away from where the antennae are mounted allowing for a
perpendicular run of coax from the antenna before turning down under
the glare shield.


On 6/7/2017 7:21 PM, wrote:
Very good reception compared to most of what I've seen. I would love
to see a photo or detailed description of your antenna layout, in
particular the location, orientation, and separation of the FLARM A
and B antennas. I assume the former is mounted on the portable box
itself.

Chip Bearden



--
Dan, 5J