§  80.219   Special requirements for narrow-band direct-printing (NB-DP)
equipment.

   NB-DP and data transmission equipment installed in ship and coast
   stations before October 1, 1990, that operates on the frequencies in
   the 4,000-27,500 kHz bands must be capable of operation in accordance
   with the technical requirements of either ITU-R M.476-5 or ITU-R
   M.625-3 (both incorporated by reference, see § 80.7), and may be used
   indefinitely. Equipment installed on or after October 1, 1990, must be
   capable of operation in accordance with the technical requirements of
   ITU-R M.625-3, 1995 (incorporated by reference, see § 80.7). NB-DP and
   data transmission equipment are additionally permitted to utilize any
   modulation, so long as emissions are within the limits set forth in
   § 80.211(f) and the equipment is also capable of operation in accordance
   with ITU-R M.625-3 (incorporated by reference, see § 80.7).

   [ 76 FR 67611 , Nov. 2, 2011]