§  87.91   Operation of transmitter controls.

   The holder of a marine radio operator permit or a restricted
   radiotelephone operator permit must perform only transmitter operations
   which are controlled by external switches. These operators must not
   perform any internal adjustment of transmitter frequency determining
   elements. Further, the stability of the transmitter frequencies at a
   station operated by these operators must be maintained by the
   transmitter itself. When using an aircraft radio station on maritime
   mobile service frequencies the carrier power of the transmitter must
   not exceed 250 watts (emission A3E) or 1000 watts (emission R3E, H3E,
   or J3E).

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Operating Procedures

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