Today's Message Index:
----------------------
1. 09:12 AM - Re: Active VOR antenna (Hariharan Gopalan)
2. 09:58 AM - Re: Active VOR antenna (Robert L. Nuckolls, III)
Message 1
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| Subject: | Re: Active VOR antenna |
Hi Bob
Will this antenna design work on an all metal plane? A fiberglass wingtip
is used though.
Thanks
Hari
On Wed, Sep 9, 2015 at 10:26 AM, <berkut13@berkut13.com> wrote:
>
> VOR antenna project update:
>
> I want to extend a big THANK YOU to all that helped with this project and
> tell you it was a complete success!
>
> We have been progressing through Phase I testing and the non-standard
> VOL/ILS antenna design is working splendidly. It is being used with a
> Garmin 650 (internal splitter) and locks onto VOR signals from 100mi @
> 10,000=99 and has no problem at all with ILS capture either. It wa
s made
> from RG-58 coax and a short scrap of 22-AWG wire for the counterpoise per
> the dimensions below.
>
> We are very pleased with it=99s performance and can=99t imagi
ne that a
> standard antenna would perform any better in this application. Testing
> will continue to determine if there are any blind or degraded spots or
> freqs. But for now, mark it up as a successful alternate design!
>
> Thanks again!
> -James
> Berkut/Race 13
>
>
> *From:* Robert L. Nuckolls, III <nuckolls.bob@aeroelectric.com>
> *Sent:* Thursday, June 04, 2015 5:26 PM
> *To:* aeroelectric-list@matronics.com
> *Subject:* Re: AeroElectric-List: Active VOR antenna
>
>
> Jim, finished one of these and was disappointed in performance.
> The thing is so tiny that it's hard to troubleshoot,
> assembled a second just in case.
>
> I think the best plan-b for now is to install
> a quasi-sleeve dipole . . . except that the 'sleeve'
> is just a piece of wire. I forget how long you said
> your antenna conduit was, hopefully considerably
> more than 26".
>
> Make the antenna from wire stiff enough to push
> into the tube on the end of the coax. Wouldn't
> put a connector in the counterpoise. Just thread
> it to the ship's interior on installation and tape
> it sort out of the way.
> [image: Emacs!]
> I've got a couple other antenna projects on the bench
> but some buys waving credit cards have purchased some
> keyboard/hammer-n-tongs time . . . and I've got a couple
> of pots boiling for B&C. I'd like to pursue the
> active antenna experiment. It would be useful to field
> test the idea in close proximity to transponder and
> vhf/comm transmitters!
>
> In the mean time, let's get your airplane flying.
>
> Bob . . .
>
Message 2
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| Subject: | Re: Active VOR antenna |
At 11:10 AM 9/23/2015, you wrote:
>Hi Bob
>
>Will this antenna design work on an all metal plane? A fiberglass
>wingtip is used though.
No . . . suggest you consider a VOR tip antenna like
this . . . http://tinyurl.com/qc9qyla
Bob . . .
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