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A glitch is a temporary loss of control caused by a problem with the helicopter's radio system.

Common causes are:

  • Radio interference from outside sources;
  • Radio interference from the electronic speed controller.
  • Radio interference due to poor radio installation.
  • Radio interference due to metal-on-metal vibration (particularly in the 10-100MHz frequency range, 2,4GHz is immune to this).
  • Radio interference due to static discharge on the helicopter (particularly from a tail belt).
  • Radio decoding errors due to poor receiver voltage.
  • Drop in the voltage supplied to the receiver.

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