Sec.  90.233   Base/mobile non-voice operations.

   The use of A1D, A2D, F1D, F2D, G1D, or G2D emission may be authorized to
   base/mobile operations in accordance with the following limitations and
   requirements.

   (a) Licensees employing non-voice communications are not relieved of their
   responsibility to cooperate in the shared use of land mobile radio channels.
   See also  Sec.  Sec. 90.403 and 90.173(a) and (b).

   (b) Authorization for non-voice emission may be granted only on frequencies
   subject to the coordination requirements set forth in  Sec. 90.175. Non-voice
   operations on frequencies not subject to these requirements are permitted
   only a secondary basis to voice communications.

   (c) Provisions of this section do not apply to authorizations for paging,
   telemetry,  radiolocation, automatic vehicle monitoring systems (AVM),
   radioteleprinter, radio call box operations, or authorizations granted
   pursuant to subpart T of this part.

   [ 48 FR 2794 , Feb. 3, 1983, as amended at  49 FR 48711 , Dec. 14, 1984;  56 FR 19602 , Apr. 29, 1991;  72 FR 35195 , June 27, 2007]