§ 95.1787   GMRS additional requirements.

   Each hand-held portable unit transmitter type submitted for
   certification under this subpart is subject to the rules in this
   section.

   (a) Digital data transmissions. GMRS hand-held portable units that have
   the capability to transmit digital data must be designed to meet the
   following requirements.

   (1) Digital data transmissions must only be initiated by a manual
   action by the operator, except that GMRS units may automatically
   respond with location data upon receiving an interrogation request from
   another GMRS or FRS unit.

   (2) Digital data transmissions must not exceed one second in duration.

   (3) Digital data transmissions must not be sent more frequently than
   one digital data transmission within a thirty-second period, except
   that a GMRS unit may automatically respond to more than one
   interrogation request received within a thirty-second period.

   (4) The antenna must be a non-removable integral part of the GMRS unit.

   (5) GMRS units must not be capable of transmitting digital data on the
   467 MHz main channels.

   (b) [Reserved]

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