[NSRCA-discussion] electric interference question

[Nat Penton]

George
 Try running the receiver antennae out toward a wingtip for a test. A scanner might isolate the source of the RF. Take some foil and try wrapping sections of the E wiring. I heard it was more effective to twist remote servo leads than to use a toroid.  Unplug the remote servos. A friend eliminated two aileron servo extensions and eliminated his problem. Try unplugging the aileron servos on a separate test, one at the time.                   Nat
  ----- Original Message ----- 
  From: George Miller 
  To: NSRCA Mailing List 
  Sent: Saturday, May 13, 2006 9:48 PM
  Subject: [NSRCA-discussion] electric interference question


  OK, this isn't exactly a pattern plane, but this group has a lot of expertise so I thought I'd ask here:

  I have a Showtime which I've built as an electric with AXI 5320/28 and Jeti Advance Plus Opto 90 amp ESC with a HVBEC for RX power.  The radio is a JR 9303 TX and PCMS receiver.  

  The problem is that I am getting some RF interference.  Ground range check is OK to 100 feet with antenna down and motor off, but when motor is turned on, the rx locks out (PCM)  until I either walk back a few yards closer, or put up the antenna.  I have gone from ppm to pcm RX, put toroid "RF Filters" on the leads from the ESC and both elevator servo's ( plane designed with elevator servo's mounted in tail with long leads to RX). I have also braided the wires between the motor and the ESC.  My next step is to try a different ESC, but I thought I'd ask here before shelling out a couple of hundred bucks for a new ESC. 

  Any other thoughts?

  Thanks,

  George



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