Originally posted by khyber
Guys I have this severe intermittent glitch whenever my car go pass by a lamp pole. I have changed my Rx and crystal am sure that all batt are fully charged and no loose metal part and all servo are mounted on that cushion (I forget what they call that thing) but problem persist. Could this problem overcomed ?
You have a devil behind that lamp pole !! LOL
Things to check :-
1) Check if your receiver antenna wire is not broken or antenna wire is expose in the middle or near the Rx. Seal it up
2) Make sure the receiver antenna wire is not wrap around carbon fiber or near to engine/servo.
3) Carbon Fiber to Metal/screws/etc. Make sure they are tighten, anything lose will cause it to rub each other and cause a glitch.
4) Exhaust system connections/cracks/worn out couplers
5) Loose/dirty connections at Rx, extensions, switch, etc.
6) Battery pack and/or connections
7) Routing of servo leads
8) Dirty, worn, or dry bearings
1) Try to make your receiver have less vibration. Put 2 layers double sided form tape between the Rx and the mount.
2) You might want to shrink wrap your Rx.
3) Pour your fuel carefully not to spill around the Rx or NOT to spill to much.
4) Change Battery.
5) Change Frequency (change the crystal) both Tx and Rx.
Vibration noise may cause resonant frequency, expecially at the crystal mounting side. The reason why you should shrink wrap or use any wrap is to hold the crystal in place and prevent it from un-necessary movement. The double sided form also helps in absorbing those vibration. Resonant frequency develop in vibration at crstal side which will cause to produce different frequency waveband, hence will give false/miss pulse wave in the signal. In other word, if u are using FM receiver, u lose control of the car for a moment of time and if PCM it will lock for a moment. You might want to notice at that lamp pole, are you letting the car running straight during full trottle, making a corners? Usually this happen during full on power trottle where the engine will create a lot of vibration. If it during turning, then you might want to check your servo or change it. It does happen to me that the servo was bad. How this happen was that this servo was drawing so much current that it should from my battery (servo not biding or whatsoever) that it pull down the ideal working voltage on the receiver, which is almost equal to low battery, even though i have it fully charge.