CONTENTS

Policy on Intellectual Property Right (IPR)
Annex 1
Technical characteristics for equipment designed to operate in channels spaced by 12.5 kHz
Annex 2
Migration to narrow-band channels in the maritime mobile service
�1���� Introduction
�2���� Implications of migration to narrow-band channels
������� 2.1���� Migration
������� 2.2���� Interleaving
����������������� 2.2.1���� Interleaving with 25 kHz channels
����������������� 2.2.2���� Interleaving with 12.5 kHz channels
����������������� 2.2.3� ���Interleaving with 25 kHz and 12.5 kHz channels
�3���� Interference
�4���� Conclusions
Annex� 3
An example method for implementing interleaved narrow-band channels at 12.5 kHz offset spacing
�1���� Receiver performance
�2���� Transmitter performance
��� ����2.9���� For transmitters with DSC and C4FM capability
Annex 4
Assignment of channel numbers to interleaved channels and simplex operation of duplex channels in the VHF maritime band