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  #1  
Old 06-26-2017, 05:58 AM
Michael Henning Michael Henning is offline
 
Join Date: Jun 2011
Location: Nashua, NH
Posts: 527
Default Intermittent squeal on transmit

I have tried the search function, no joy. I have an occasional equal on transmit that I can hear in headset, but what I hear is more of a static sound, controller hears a squeal. It is an Icom A200, Flightcom FC-403 stereo intercom. I have tried different headsets, problem is still there. Where is a good starting point? I have about 200 hours on plane now, and this started about 5 hours ago.
Many thanks in advance.
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RV-4 #2750
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  #2  
Old 06-26-2017, 06:08 AM
molson309 molson309 is offline
 
Join Date: Jul 2009
Location: Longmont, CO
Posts: 236
Default

Quote:
Originally Posted by Michael Henning View Post
I have tried the search function, no joy. I have an occasional equal on transmit that I can hear in headset, but what I hear is more of a static sound, controller hears a squeal. It is an Icom A200, Flightcom FC-403 stereo intercom. I have tried different headsets, problem is still there. Where is a good starting point? I have about 200 hours on plane now, and this started about 5 hours ago.
Many thanks in advance.
Try swapping in a known good IC A200 to see if the problem follows the radio.
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RV-7A First flight 2005 Sold 2019
F1-EVO Rocket First flight 2010
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  #3  
Old 06-26-2017, 10:15 AM
Tankerpilot75 Tankerpilot75 is offline
 
Join Date: Jan 2015
Location: Oklahoma City, OK
Posts: 431
Default Check Antenna Couplings

I had a bad intermittent static problem with my radio reception and transmissions and discovered during some unrelated work that my connection to my antenna was faulty. Redid the connections and the problem disappeared. Good luck with your hunting.
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Jim Harris, RV7A, 2nd owner, N523RM
IO-360, Hartzel CS prop, Older Aerotronics built panel Dual GRT Horizon WS, GRT EIS, Garmin 340, 335, Dual 430s, TruTrak 385 A/P with auto level, FlightBox hard wired to WS, Dynon D10A with internal battery (backup EFIS), 406 MHz ELT.
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