make it as lance for dork landing
or with safety ball on the tip for les accurate pilots
It is note a joke
make a nose cone go over it with small opening on the tip
make antenna heavy to balance the tail so you use less lead in the nose
practically no drag added for speed , some if nose up.
real aviation does it all the time
OR
ask maker of the kit to do nose cone out of the Fiber Glass only ( you need weight there anyway)
place the base loaded whip antenna to starting coiling at root bulkhead and going forward as far you can reach with straight run
I use
http://www.microantenna.com/index.html
this fashion with great results so far but my nose cone IS Fiber Glass and the boom is carbon occasionally
real aviation hides all electronic ( radars , radio) equipment under those huge nose cones made of materials not restricting anything
Why the wheel has to be discovered over and over again
we are talking about safety issues here
Zbigniew Michalczyk The Soaring Little Fleet of Poland http://mysite.verizon.net/vze2qbfc/
----- Original Message ----- From: "Simon Van Leeuwen" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: <soaring@airage.com>
Sent: Friday, March 25, 2005 5:36 PM
Subject: Re: [RCSE] Antenna hanging out
Try it. I doubt however the second parallel unit will be effective. It runs a very high chance of double imaging at the RX front end (reduction in range). The other issue is the antenna element and the distance it sits relative the carbon, the closer (as in fractions of a millimeter) the more energy loss.
The best solution, although cumbersome (transport to/from the field with a 6" vertical can be a pain), is a base-loaded whip that stands vertically out of the existing ground plane, that being the rest of the ground side of the existing wiring harness. With proper placement, the gains associated with the ability to be positioned 90 degrees to the existing GND plane will equal or exceed the OEM antenna...which always lies parallel to the GND plane (not optimum by any means).
With the element just aft of the wing TE, receiving losses in 3 dimensions (3D plots) shows the worst gain when the TX is 45 degees down directly in front the aircraft (~6dB). Not enough to ruin your day be any means.
Finally, parts of the antenna left to dangle are doing most of the work...away from the dissipative CF...keep this in mind when sticking with the OEM (of any length).
George Voss wrote:
To all of the "double E's" out there, I have an antenna question: Since a
large number of new sailplanes have copious amounts of carbon in the
fuselage, and leaving some of the antenna wire seems to solve nearly
everyone's issues, what about using a fine copper wire that runs parallel to
the fuselage on both the top and bottom, that is taped to the fuselage?
This will get rid of drag and make the antenna 'visible' to the transmitter
nearly 100% of the time. Is this a workable situation or is there some
electrical faux pas that this commits?
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-- Simon Van Leeuwen RADIUS SYSTEMS PnP SYSTEMS - The E-Harness of Choice Cogito Ergo Zooom
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