Today's Message Index:
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1. 04:51 AM - Re: Hanger Antenna (Mark Banus)
2. 10:28 AM - Re: Indicator light circuit with push to test (donjohnston)
3. 11:19 AM - Re: Re: Hanger Antenna (Robert L. Nuckolls, III)
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Subject: | Re: Hanger Antenna |
Thanks All,
I think I will build a discone centered on 75MHZ. If that doesn't work
I'll try one of the commercial units. Just have to have music while I work
:)
Mark
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Subject: | Re: Indicator light circuit with push to test |
sprocket(at)vx-aviation.c wrote:
> It's all there: http://107.22.231.30/redmine/projects/il-4a/documents
>
> Thx, Vern
>
> --
Looks like this is for 12v systems. I'm running a 24v system.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=402693#402693
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Subject: | Re: Hanger Antenna |
At 06:50 AM 6/14/2013, you wrote:
>Thanks All,
>
>I think I will build a discone centered on 75MHZ. If that doesn't
>work I'll try one of the commercial units. Just have to have music
>while I work :)
>
>Mark
Not 'centered' but cut so that lower edge is at 75 . . . or even
90 Mhz.
See:
http://www.changpuak.ch/electronics/calc_11.php
This is still a pretty big antenna . . . 'legs'
of cone nearly a meter long. Actually, if you
shoot for 91 Mhz, the legs come out exactly
3' long . . . which may be the handly stocking
length for brass or aluminum tube from the store.
Bob . . .
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