Coast station assignments in the 4000-4063 kHz band deviate from international provisions. Coast station assignments in the 4000-4063 kHz band are permitted provided that such stations must not cause interference to, and must accept interference from, stations operated by other countries in accordance with the Radio Regulations.

1. (a) Frequencies in the 4000-4063 kHz band.

   1. (1) The frequencies in the 4000-4063 kHz bands are available to ship and public coast stations for:

      1. (i) Supplementary ship-to-shore duplex operations with coast stations assigned the frequencies described in § 80.371(b) of this part;
      2. (ii) Intership simplex operations and cross-band operations;
      3. (iii) Ship-to-shore or shore-to-ship simplex operations; or
      4. (iv) Duplex operations with coast stations assigned in the band 4438-4650 kHz, as described in § 80.373(d) of this part.

   2. (2) The following table describes the channelization of carrier frequencies in the 4000-4063 kHz band.

      Carrier Frequencies (kHz)

      4000	4015	4030	4045
      4003	4018	4033	4048
      4006	4021	4036	4051
      4009	4024	4039	4054
      4012	4027	4042	4057

2. (b) Frequencies in the 8100-8195 kHz band.

   1. (1) The frequencies in the 8100-8195 kHz bands are available to ship and public coast stations for:

      1. (i) Supplementary ship-to-shore duplex operations with coast stations assigned the frequencies described in § 80.371(b) of this part;
      2. (ii) Intership simplex operations and cross-band operations; or
      3. (iii) Ship-to-shore or shore-to-ship simplex operations.

   2. (2) The following table describes the channelization of carrier frequencies in the 8100-8195 kHz band.

      Carrier Frequencies (kHz)

      8101	8137	8167
      8104	8140	8170
      8107	8143	8173
      8110	8146	8176
      8116	8149	8179
      8119	8152	8182
      8122	8155	8185
      8125	8158	8188
      8131	8161	8191
      8134	8164

[56 FR 9896, Mar. 8, 1991, as amended at 65 FR 77826, Dec. 13, 2000; 68 FR 46970, Aug. 7, 2003]