interference??? - RCCanada - Canada Radio Controlled Hobby Forum
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Old 06-06-2005, 07:50 PM   #1
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I have been told that by using a steel rod or cable for a throttle linkage that I may experience receiver interference. Can any one confirm this? I have been using thin steel rods on the planes I am currently flying and have never experienced this but I have only been in this hobby for 2 years so I am still learning a lot

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Old 06-06-2005, 09:11 PM   #2
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Best to at least use a nylon clevis at the connection to the throttle. I have seen the results of using a metal, it played with the throttle like it had a mind of its own.
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Old 06-06-2005, 10:05 PM   #3
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This is especially true on gassers with electronic ignitions!
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Old 06-07-2005, 02:35 AM   #4
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There is no problem with the steel rod or cable just make sure you use the nylon clevis like Graham said. You just don't want any metal to metal rubbing contact which will create RF noise to your receiver.

This is especially true on gassers with electronic ignitions!
Hey Gary. I saw a good example of this 2 weeks ago. A fellow member had converted a Funtana from glow to a gas engine.
On his first flight with the new engine the plane had a mind of its own after a few minutes in the air. He was very lucky he landed it without any damage. (maybe a change of underwear though!)
On the ground the plane would idle and range check fine until he would advance the throttle and then the elevator would go to full deflection and back to neutral. No other control surfaces were effected. We eventually tracked the problem to the spark plug boot. It was just bare metal without any insulation like you normally see. The clip inside the boot had loosened off from the engine vibration and then the metal housing would rub against the engine cylinder. He is looking for a more permanent solution to the problem than just the quick fix we did at the field.


If you want awesome, you have to scratch build it!
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Old 06-07-2005, 05:45 AM   #5
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Also keep your antenna wire away from any metal rods or your steel cables in your pull-pull systems.

Yes the metal to metal contact seems to generate RF due to vibration of the ngine. Obviously the faster an engine runs, the more vibration and more RF generated.
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