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DIY transponder antenna

 
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mdnanwelch7(at)hotmail.co
Guest
PostPosted: Thu Jan 20, 2011 6:51 pm    Post subject: DIY transponder antenna Reply with quote
List members,
 
  Would someone be kind enough to share a link or reference
for a guy to make his own transponder antenna?  Preferably, a
site that lists the necessary materials, has some pictures, etc.
 
  I'm real close to  the point where I need to think about installing the
antenna for the transponder.
 
Thanks,
 
Mike Welch
[quote][b]

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jimw_btg(at)earthlink.net
Guest
PostPosted: Thu Jan 20, 2011 7:54 pm    Post subject: DIY transponder antenna Reply with quote
Mike,

On E-Bay you can purchase production built transponder antenna’s for anywhere from $15 to $20 in AS page 548, pt.no. 11-17995, 2009 cat. they are $18.95….two ups shipments of pcs parts will be at least $12.00 to $18.00 alone. ????? Take care build where it counts.

Jim Wickert
Vision #159 “Vision Some Will Have IT Some Will Not”.
Tel 920-467-0219
Cell 920-912-1014


From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Mike Welch
Sent: Thursday, January 20, 2011 8:47 PM
To: aeroelectric-list(at)matronics.com
Subject: DIY transponder antenna

List members,

Would someone be kind enough to share a link or reference
for a guy to make his own transponder antenna? Preferably, a
site that lists the necessary materials, has some pictures, etc.

I'm real close to the point where I need to think about installing the
antenna for the transponder.

Thanks,

Mike Welch
Quote:
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ftyoder(at)yoderbuilt.com
Guest
PostPosted: Thu Jan 20, 2011 8:01 pm    Post subject: DIY transponder antenna Reply with quote
Not much help, the simplest one I saw was made from an AN bolt of the proper length.
I bet someone on the list will remember the source.
Tim
[quote] ---

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mdnanwelch7(at)hotmail.co
Guest
PostPosted: Thu Jan 20, 2011 8:38 pm    Post subject: DIY transponder antenna Reply with quote
Hi Jim,
 
  I'm very familiar with the eBay ones, I just thought I could build my
own for a couple of bucks, but since you suggested it, I might as well
go ahead and get one of those off eBay.  (I was seriously considering
the eBay one, anyway)
 
  If no one else bids, I can buy it for $9.99.  Add the $6 for the shipping
and it comes in at $16 delivered.  I have enough projects, I think I'll go the easy
route on this one, and buy one ready-made.
 
  Thanks for the responses, guys.
 
Mike Welch
 
From: jimw_btg(at)earthlink.net
To: aeroelectric-list(at)matronics.com
Subject: RE: DIY transponder antenna
Date: Thu, 20 Jan 2011 21:50:56 -0600

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Mike,
 
On E-Bay you can purchase production built transponder antenna’s for anywhere from $15 to $20 in AS page 548, pt.no. 11-17995,  2009 cat. they are $18.95….two ups shipments of pcs parts will be  at least $12.00 to $18.00 alone. ?????  Take care build where it counts.
 
Jim Wickert
Vision #159  “Vision Some Will Have IT Some Will Not”.
Tel 920-467-0219
Cell 920-912-1014

 
From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Mike Welch
Sent: Thursday, January 20, 2011 8:47 PM
To: aeroelectric-list(at)matronics.com
Subject: AeroElectric-List: DIY transponder antenna


 
List members,
 
  Would someone be kind enough to share a link or reference
for a guy to make his own transponder antenna?  Preferably, a
site that lists the necessary materials, has some pictures, etc.
 
  I'm real close to  the point where I need to think about installing the
antenna for the transponder.
 
Thanks,
 
Mike Welch
Quote:
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etienne.phillips(at)gmail
Guest
PostPosted: Thu Jan 20, 2011 10:37 pm    Post subject: DIY transponder antenna Reply with quote
Hi Mike

I built one out of a simple BNC panel mount connector (can't remember if it was male or female), with a piece of coat-hanger wire soldered into the crimping hole, all covered in red heatshrink with a ball of glue at the end to prevent bleeding. It took less than 10 mins to make and cost about $5.

Here's an example BNC: http://za.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=6807361

I have an aluminium skin which acts as a nice ground-plane, and I've had no issues whatsoever with the transponder in 2 years of operation, at an airfield that makes you come back and land if your Mode C isn't working!

I also know of one person that just strips the coax and lets the protruding inner core of the correct length dangle in the wind with the shield attached to the skin with a lug and bolt. It also works for him, although it terrifies me Smile

Hope that helps!
Etienne

On 21 January 2011 06:27, Mike Welch <mdnanwelch7(at)hotmail.com (mdnanwelch7(at)hotmail.com)> wrote:
[quote] Hi Jim,
 
  I'm very familiar with the eBay ones, I just thought I could build my
own for a couple of bucks, but since you suggested it, I might as well
go ahead and get one of those off eBay.  (I was seriously considering
the eBay one, anyway)
 
  If no one else bids, I can buy it for $9.99.  Add the $6 for the shipping
and it comes in at $16 delivered.  I have enough projects, I think I'll go the easy
route on this one, and buy one ready-made.
 
  Thanks for the responses, guys.
 
Mike Welch

[b]

- The Matronics AeroElectric-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List
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