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HomeAircraftHelicopterGasser Model RC HelicoptersOther › new kalt gasser ,, massive radio glitch ""
03-09-2012 08:35 AM  6 years agoPost 1


portsmouth hampshire uk

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hello again all,hope all is well.

as per old post i have restored a kalt baron 11 gasser,looks good i have to say.But there is a massive radio glitch? and this is without the engine running i have never seen this before on any gasser,you would expect this yes if the motor was running ,At one point the rudder became the pitch????????,,i have changed the rx,and battery and tried another servo???????????????::: has any one come accross anything like this before,,,,

cheers all.

03-09-2012 09:58 AM  6 years agoPost 2

rrElite Veteran

Isle of Wight,United Kingdom

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Team- unbiased opinion.K.I.S.S principle upheld here

03-09-2012 10:19 AM  6 years agoPost 3


Carmel, IN

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If the engine is running then it's NOT gasser's fault.

What band are you using? 2.4Ghz or 35Mhz? Is this a vintage radio too? Has it been involved in a crash? Is the transmitter battery pack in good health? The antenna fully extented? Matching crystals in Tx and Rx?

Plug in a freshly charged battery pack on the receiver and all the servo's and gyro that you will use and do a proper range check. Wingle all the cables and connectors, make sure you don't have an intermittent connection somewhere.

If you are not on PCM modulation with failsafe function, you can turn off the Tx and observe how the servos behave for a few minutes.
Any local intereference sources? Microwave ovens? Large electric motors, etc?

Hope this helps,

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03-09-2012 03:10 PM  6 years agoPost 4

rrElite Veteran

W. Bridgewater, MA USA

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I recently built a Hirobo Freya that I picked up for cheap money. Threw in old electronics I had laying around. 9202 servos, Arcamax gyro, 9254 on the tail, Futaba PCM receiver. When I started flying it around, the engine kept quitting, and then coming back. I thought at first it was the engine, but it turns out it was going into failsafe. Put an fm receiver in it and it was glitching like crazy even without the engine running. As soon as I disconnected the gyro, the glitching stopped. Tried a different gyro, same thing. Plugged a different tail servo in, and everything was fine. Mounted the new tail servo and the glitching came back! Took the tail servo out but left it connected. If I moved the boom mounted tail servo closer to the gyro, the glitching disappeared. Back to the boom and the glitching came back. Turns out (I guess) that the position of the tail mounted servo was just the right length that the servo/gyro wires acted as an antenna. Switched to 2.4 and all seems well, although I have not flown it yet, waiting for good weather. Just something for you to check, don't know if you are on 2.4 or not. Good Luck!

03-18-2012 04:04 AM  6 years agoPost 5

rrElite Veteran


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Could be a bad crystal or receiver. There were many issues with wires running on carbon tubes giving issues as GMP stated...... Do not zip tie wires or your antenna onto graphite.

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