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Becker ATC4401-1 transponder error E-10

 
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rparigoris



Joined: 24 Nov 2009
Posts: 792

PostPosted: Mon Aug 12, 2024 6:48 pm    Post subject: Becker ATC4401-1 transponder error E-10 Reply with quote

Hi Group
We turned on our Becker ATC4401-1 Transponder and we are getting an Error E-10 when unit is turned on.
We have a sound antenna wire going to an AAE L2 antenna. There is a Garmin GDL-82 ADS-B in series with the antenna. The GDL-82 has a Garmin GA35 GPS antenna with a good ground plane.
We measured both sides of the transponder antenna with it disconnected and see DC infinite resistance center conductor to ground.
The AAE L2 shows DC infinite resistance center conductor to ground.
The GDL-82 shows 0 resistance DC center conductor to ground. Again this is DC and perhaps at operating frequency it's not a dead short?
Any thoughts would be greatly appreciated if a dead short DC is normal for ADS-B and thoughts on E-10 Error on Becker transponder.
Thank you.
Ron P.


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user9253



Joined: 28 Mar 2008
Posts: 1922
Location: Riley TWP Michigan

PostPosted: Wed Aug 14, 2024 8:20 am    Post subject: Re: Becker ATC4401-1 transponder error E-10 Reply with quote

From what I have read on the internet, the Becker E-10 error indicates an antenna
problem which could be from damaged coax, poor coax connections, or a poor ground plane.
There could also be a problem internal to the Becker that results in an E-10 error message.
I suggest that for testing purposes, disconnect the GDL-82 and connect the
Becker transponder directly to the antenna to see if the E-10 error goes away or not.


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