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Antenna Ground Plane

 
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nuckolls.bob(at)aeroelect
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PostPosted: Thu Jun 20, 2019 7:43 pm    Post subject: Antenna Ground Plane Reply with quote

At 10:25 AM 6/6/2019, you wrote:
Quote:
Thank you very much, I look forward to seeing your test results

Keep well

Mike

Mike, if you mounted a Jim Weir ELT
antenna on the side of your fuselage,
how long would the coax need to be to
run from the antenna apex junction
to your ELT?



Bob . . .


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mike(at)vision499.com
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PostPosted: Thu Jun 20, 2019 9:09 pm    Post subject: Antenna Ground Plane Reply with quote

Thanks for your help Bob

Shortest run possible is 1 foot and I can put antenna 5 to 6 ft away on other side of fuselage and run antenna for +/- 8 ft max from current ELT mount. I can reposition the ELT elsewhere in the fuselage but I imagine one does not want then too far apart

Hope this helps

I will be away for 5 days so will not be able to respond

Thanks

Mike

From: owner-aeroelectric-list-server(at)matronics.com <owner-aeroelectric-list-server(at)matronics.com> On Behalf Of Robert L. Nuckolls, III
Sent: June 20, 2019 6:14 PM
To: aeroelectric-list(at)matronics.com
Subject: RE: Antenna Ground Plane

At 10:25 AM 6/6/2019, you wrote:

Quote:

Thank you very much, I look forward to seeing your test results

Keep well
 
Mike


Mike, if you mounted a Jim Weir ELT
antenna on the side of your fuselage,
how long would the coax need to be to
  run from the antenna apex junction
to your ELT?


Bob . . .
Virus-free. www.avast.com [url=#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2] [/url]


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nuckolls.bob(at)aeroelect
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PostPosted: Fri Jun 21, 2019 7:28 am    Post subject: Antenna Ground Plane Reply with quote

At 12:09 AM 6/21/2019, you wrote:
Quote:
Thanks for your help Bob

Shortest run possible is 1 foot and I can put antenna 5 to 6 ft away on other side of fuselage and run antenna for +/- 8 ft max from current ELT mount. I can reposition the ELT elsewhere in the fuselage but I imagine one does not want then too far apart

Hope this helps

I will be away for 5 days so will not be able to respond

Thanks

Mike

No problem. The reason I'm asking is
that I'll need to assemble an exemplar
antenna to test . . . but don't have
an airplane of my own.

So, assuming the tests are encouraging,
I'd be pleased to donate the test
article to your project. The factory-fab
coax cables I have for the test would
leave about a 2' flying lead with a
BNC connector on it.

If that would be long enough, then
I think we have a plan for the
testing residuals.



Bob . . .


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argoldman(at)aol.com
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PostPosted: Tue Jun 25, 2019 6:11 am    Post subject: Antenna Ground Plane Reply with quote

Greetings all,

Can a single layer bid carbon layup (of appropriate size) suffice as a ground plane?
Thanks in advance
Rich

Sent from my iPhone

On Jun 21, 2019, at 10:26 AM, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
Quote:
At 12:09 AM 6/21/2019, you wrote:
Quote:
Thanks for your help Bob

Shortest run possible is 1 foot and I can put antenna 5 to 6 ft away on other side of fuselage and run antenna for +/- 8 ft max from current ELT mount. I can reposition the ELT elsewhere in the fuselage but I imagine one does not want then too far apart

Hope this helps

I will be away for 5 days so will not be able to respond

Thanks

Mike

No problem. The reason I'm asking is
that I'll need to assemble an exemplar
antenna to test . . . but don't have
an airplane of my own.

So, assuming the tests are encouraging,
I'd be pleased to donate the test
article to your project. The factory-fab
coax cables I have for the test would
leave about a 2' flying lead with a
BNC connector on it.

If that would be long enough, then
I think we have a plan for the
testing residuals.



Bob . . .


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mike(at)vision499.com
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PostPosted: Tue Jun 25, 2019 7:30 am    Post subject: Antenna Ground Plane Reply with quote

Bob

Thank you very much

I really appreciate your efforts and would gladly contribute to cover the costs

2 feet would be more than enough

Thanks again

Mike

From: owner-aeroelectric-list-server(at)matronics.com <owner-aeroelectric-list-server(at)matronics.com> On Behalf Of Robert L. Nuckolls, III
Sent: June 21, 2019 8:27 AM
To: aeroelectric-list(at)matronics.com
Subject: RE: Antenna Ground Plane

At 12:09 AM 6/21/2019, you wrote:

Quote:

Thanks for your help Bob

Shortest run possible is 1 foot and I can put antenna 5 to 6 ft away on other side of fuselage and run antenna for +/- 8 ft max from current ELT mount. I can reposition the ELT elsewhere in the fuselage but I imagine one does not want then too far apart
 
Hope this helps

I will be away for 5 days so will not be able to respond

Thanks

Mike


No problem. The reason I'm asking is
that I'll need to assemble an exemplar
antenna to test . . . but don't have
an airplane of my own.

So, assuming the tests are encouraging,
I'd be pleased to donate the test
article to your project. The factory-fab
coax cables I have for the test would
  leave about a 2' flying lead with a
BNC connector on it.

If that would be long enough, then
I think we have a plan for the
testing residuals.


Bob . . .
Virus-free. www.avast.com [url=#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2] [/url]


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nuckolls.bob(at)aeroelect
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PostPosted: Tue Jun 25, 2019 10:32 am    Post subject: Antenna Ground Plane Reply with quote

At 09:10 AM 6/25/2019, you wrote:
Quote:
Greetings all,

Can a single layer bid carbon layup (of appropriate size) suffice as a ground plane?

Thanks in advance

Sorry, no. Sheet resistance is too high and making
an electrical connection is problematic. Ground
systems in TC composite a/c are . . . well . . .
I'll be kind: astounding.



Bob . . .


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argoldman(at)aol.com
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PostPosted: Tue Jun 25, 2019 11:42 am    Post subject: Antenna Ground Plane Reply with quote

thanks Bob (now back to the drawing board) Plane(ly)


Rich


--


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