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  #11  
Old 11-06-2018, 10:42 AM
backcountry backcountry is offline
 
Join Date: Dec 2015
Location: Houston, Texas
Posts: 29
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After 7 months the noise again returned. Sounds like squelch noise. Again I removed and reinstalled the comm connector on the 50001 box and once again the was gone but didnít last very long.
Has anyone seen this problem?
Vans eliminated the box on the new RV-12ís.
I feel as the aircraft ages problems will increase considering all those connections on the 50001 box.
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  #12  
Old 11-06-2018, 11:56 AM
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 7,803
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Quote:
Originally Posted by backcountry View Post
After 7 months the noise again returned. Sounds like squelch noise. Again I removed and reinstalled the comm connector on the 50001 box and once again the was gone but didn’t last very long.
Has anyone seen this problem?
Vans eliminated the box on the new RV-12’s.
I feel as the aircraft ages problems will increase considering all those connections on the 50001 box.
Make sure it is not a problem related to the grounding of the box itself.
It is supposed to have a good ground to the airframe (I think internal tooth lock washers are used on the mounting screws to help with this).
When you R & R the harness cable you might be moving the box enough to influence the ground connection.

Also be sure that all pins are fully engage in the harness connector.
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Scott McDaniels
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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  #13  
Old 11-06-2018, 01:12 PM
jartlip jartlip is offline
 
Join Date: Dec 2005
Location: NC
Posts: 96
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I had the same issue in my -4. It turned out to be the power cord for the Garmin 495. If I unplugged it, the sound stopped. I never did find a fix for it. I just ran the 495 on battery power and took it out of the airplane to recharge it every 10 hours or so.
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  #14  
Old 11-06-2018, 01:27 PM
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Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 1,117
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Also, try removing and re-seating the GTR200... fixed a crazy intermittent problem we were chasing on/off for months.
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Jim Stricker
Hinckley, Ohio
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC Jul 2012 - Bought Flying Oct 2015 with 48TT - Hobbs now 406

LSRM-A Certificate 2016
Special Thanks to EJ Trucks
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