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Old March 10th 17, 05:30 PM posted to rec.aviation.soaring
Martin Gregorie[_5_]
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Default FLARM antenna question (hindrance from metal)

On Fri, 10 Mar 2017 09:38:37 +0000, Tim Newport-Peace wrote:

At 08:29 10 March 2017, Martin Gregorie wrote:
On Thu, 09 Mar 2017 10:02:02 -0800, johnfwahl wrote:

Any suggestion on mounting the Dipole antennas in a 1-26B (aluminum
nose)


On top of the fuselage behind the cockpit?

Not a dipole, but 1/4-wave.

Yep, apologies - I meant a bottom-fed rod antenna, using the 1-26 alloy
fuselage as a ground plane. Didn't think of 1/4 wave, being sometimes a
bear of very little brain.

If a suitable place can be found, Below the fuselage might be better,
giving better reception from the direction where you cannot see.

Judging from photos, there isn't much clearance between a 1-26 and the
ground, so antennae mounted on the underside may get a lot of damage.


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