Alternate Transponder Mounting/Location

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Alternate Transponder Mounting/Location

Postby Weatherpilot » Tue Jan 31, 2023 11:05 pm

I have a KT76A that I want to install. My panel doesn't have any room. Was going to get a Trig T22 but that price!

Anyone have suggestions on alternative mounting of the transponder other than the panel? Sidewall? Floor?

Also - anyone know the type of edge connector that a KT76a uses and where to get it??

Thanks all!
Greg Hubert
Sonex A #972 TD
Aerovee Prince P-Tip / Dual stick
Third Owner
Eastern Panhandle of West Virginia
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Re: Alternate Transponder Mounting/Location

Postby Bryan Cotton » Wed Feb 01, 2023 12:08 am

Greg,
Check out this thread:
viewtopic.php?f=28&t=207

Here is my contribution, with my KT76A on the right side of the subpanel. Do you have a subpanel?
Image

I can't remember if the KT76A and the KX155 have the same pins or not. But, pinball machines use the same pins as the KX155 and they are more readily available.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
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Re: Alternate Transponder Mounting/Location

Postby Tnhelm » Wed Feb 01, 2023 10:26 am

I mounted my unused Garmin transponder under the panel of my Onex. I made two mounting brackets that angled downward to just avoid interference with the back of the transponder and fuel tank. Worked out well.
Tnhelm
OneX0137
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Re: Alternate Transponder Mounting/Location

Postby daleandee » Wed Feb 01, 2023 3:32 pm

My Garmin 320A transponder is mounted flat against the bottom of the panel. I did not use the mounting tray (weight savings). It was attached using a short piece of piano hinge on the front & a bracket on the rear that attaches to the glareshield. The encoder is mounted to the bottom of the transponder.

An electrical engineer friend of mine made up the wiring harness. Wired & fused as specified by Garmin. You can see the mounting in this video about three minutes in:

https://www.youtube.com/watch?v=Hg0fgs4cFuE

Works very well and just recently was recertified for another two years ...
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Re: Alternate Transponder Mounting/Location

Postby Weatherpilot » Thu Feb 02, 2023 10:16 pm

Don't have the sub-panel. Thanks. Looks nice there.
Greg Hubert
Sonex A #972 TD
Aerovee Prince P-Tip / Dual stick
Third Owner
Eastern Panhandle of West Virginia
Weatherpilot
 
Posts: 74
Joined: Tue Sep 27, 2022 9:23 pm
Location: Eastern Panhandle - West Virginia

Re: Alternate Transponder Mounting/Location

Postby Bryan Cotton » Thu Feb 02, 2023 11:15 pm

Weatherpilot wrote:Don't have the sub-panel. Thanks. Looks nice there.

You could mount it in that location. Just make a mini-sub panel if you don't want to go all the way across. Would be easy.
Bryan Cotton
Poplar Grove, IL C77
Waiex 191 N191YX
Taildragger, Aerovee, acro ailerons
dual sticks with sport trainer controls
Prebuilt spars and machined angle kit
Year 2 flying and approaching 200 hours December 23
User avatar
Bryan Cotton
 
Posts: 5034
Joined: Mon Jul 01, 2013 9:54 pm
Location: C77


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