§ 95.645   Control accessibility.

   (a) No control, switch or other type of adjustment which, when
   manipulated, can result in a violation of the rules shall be accessible
   from the transmitter operating panel or from exterior of the
   transmitter enclosure.

   (b) An R/C transmitter which incorporates plug-in frequency determining
   modules which are changed by the user must be certificated with the
   modules. Each module must contain all of the frequency determining
   circuitry including the oscillator. Plug-in crystals are not considered
   modules and must not be accessible to the user.

   [ 53 FR 36789 , Sept. 22, 1988. Redesignated at  61 FR 28769 , June 6,
   1996, and further redesignated at  61 FR 46567 , Sept. 4, 1996;  63 FR 36610 , July 7, 1998]

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