Glitching from Fuji64EI
03-20-2005, 03:41 AM
#1
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Glitching from Fuji64EI
I have a brand new Fuji64EI that runs very well except that it produces a severve RFI in my
Sanwa 7chPCM- elevator channel.
We locate and dislocate ALL components. Even adding Capacitor to the Ignition-no avail.
changing receivers to regular non-pcm FM 6 ch.receiver- exactly the same problem with the elevator channel. going full down when engine full power and glitch on low RPM.
Any suggestions?
abe
Sanwa 7chPCM- elevator channel.
We locate and dislocate ALL components. Even adding Capacitor to the Ignition-no avail.
changing receivers to regular non-pcm FM 6 ch.receiver- exactly the same problem with the elevator channel. going full down when engine full power and glitch on low RPM.
Any suggestions?
abe
03-20-2005, 09:55 AM
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RE: Glitching from Fuji64EI
[8D]
Hi ABE,
If you have a long servo cable , receiver close to the front ( near the engine ) , even battery cable placement... EMI (electro machenical interferences), RFI (radio frequency interferences)... will affect to them when engine running. You can tolerate this problem by the old ways like : wind 3 to 5 loops of servo cable arround the Ferrite Choke, move the receiver to different location with different angle, wind 4 or 5 loops of battery cable arround Ferrite choke.
The EMI or RFI will effect to the receiver's signal, and depend on what frequency it generate.
Just some thoughs, hope you will solve the problems. Have a good weekend.
T.Tiep
Hi ABE,
If you have a long servo cable , receiver close to the front ( near the engine ) , even battery cable placement... EMI (electro machenical interferences), RFI (radio frequency interferences)... will affect to them when engine running. You can tolerate this problem by the old ways like : wind 3 to 5 loops of servo cable arround the Ferrite Choke, move the receiver to different location with different angle, wind 4 or 5 loops of battery cable arround Ferrite choke.
The EMI or RFI will effect to the receiver's signal, and depend on what frequency it generate.
Just some thoughs, hope you will solve the problems. Have a good weekend.
T.Tiep
03-20-2005, 10:05 AM
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RE: Glitching from Fuji64EI
looks like its EMI. The glitch is not related to the friquency. We change 72.550 to 72.230
and changed positions of all involved- battaries, receiver- no dice.
The EMI is produced by the Ignition itself- its very strong. it actually locks the elevator on full down position on full RPM. The transmitter cannot overide it.
Reduce the RPM and it loosen the grip but leaves a flutter.
Weard and scarry!
and changed positions of all involved- battaries, receiver- no dice.
The EMI is produced by the Ignition itself- its very strong. it actually locks the elevator on full down position on full RPM. The transmitter cannot overide it.
Reduce the RPM and it loosen the grip but leaves a flutter.
Weard and scarry!
03-21-2005, 11:26 AM
#4
My Feedback: (11)
RE: Glitching from Fuji64EI
You'll need to check all your RC components. It's possible that your particular recievers are rather receptive to the RF noise generated by the engine. The receiver antenna and all other wiring in the airborne system should be as far as possible from the engine, and the reciver antenna should be as far as possible from all other wiring.
Even with such an installation, some systems are more receptive to interference than others. You may even have a servo acting up and causing the difficulty. If all else fails, see what happens if a different brand of system is used. Perhaps one can be borrowed for testing.
Even with such an installation, some systems are more receptive to interference than others. You may even have a servo acting up and causing the difficulty. If all else fails, see what happens if a different brand of system is used. Perhaps one can be borrowed for testing.
