FINAL REPORT - Stakeholders - Ofcom

Sub-band structure of the 6 MHz maritime band
6.2 6.3 6.4 6.5
6 201.4 – 6 224.4 ship-to-shore radiotelephony - 8 × 3kHz chs
6 225.4 201.4 – – 6 6 231.4 224.4 simplex ship-to-shore radiotelephony radiotelephony - 3 × 3kHz chs - 8 × 3kHz chs
6 235.0 225.4 – – 6 6 259.0 231.4 ship-to-shore simplex radiotelephony wideband telegraphy, - 3 × 3kHz facsimile chs - 7 × 4kHz chs
6 261.3 235.0 – 6 6 262.5 259.0 oceanographic ship-to-shore research wideband communications telegraphy, - facsimile 5 × 0.3kHz - 7 chs × 4kHz chs
6 263.0 261.3 – 6 6 275.5 262.5 ship-to-shore oceanographic NBDP research (Telex) - 25 communications × 0.5kHz chs - 5 × 0.3kHz chs
6 275.75 263.0 – 6 6 280.75 275.5 ship-to-shore Morse NBDP telegraphy (Telex) - calling 25 × 0.5kHz chs chs
6 281.0 275.75 – 6 – 284.5 6 280.75 ship-to-shore ship-to-shore NBDP Morse (Telex) telegraphy - 8 × 0.5kHz calling chs chs
6 285.0 281.0 – – 6 6 300.0 284.5 ship-to-shore Morse NBDP telegraphy (Telex) working - 8 × 0.5kHz channels chs - 31 × 0.5kHz chs
6 300.5 – 6 311.5 simplex NBDP (Telex) - 23 × 0.5kHz chs
6 285.0 – 6 300.0 ship-to-shore Morse telegraphy working channels - 31 × 0.5kHz
chs 6 312.0 – 6 313.5 ship-to-shore DSC - 4 × 0.5kHz chs
6 314.0 300.5 – 6 6 330.5 311.5 shore-to-ship simplex NBDP NBDP (Telex) - - 23 34 × 0.5kHz chs
6 331.0 312.0 – 6 6 332.0 313.5 shore-to-ship ship-to-shore DSC DSC – 3 × - 0.5kHz 4 × 0.5kHz chs chs
6 332.5 – 6 501.0 shore-to-ship wideband telegraphy, facsimile, NBDP, special etc
6 502.4 – 6 523.4 shore-to-ship radiotelephony - 8 × 3kHz chs
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Colour key
Radiotelephony
Wideband and Morse telegraphy, fax,
etc
Oceanographic research
Morse telegraphy
NBDP – narrow-band direct-printing (tlx)
DSC - digital selective calling
Ship station channels
Coast station channels
Simplex channels