Channel 16 (156.80 mhz) - international calling and safety channel
Channel 14 (156.70 mhz) - calling and working frequency for port operations
A Port Operation and Information Service and VHF (FM) radio telephone watch is maintained by the Harbour Office during office hours and by the Conservancy vessels when manned. Call sign 'Chichester Harbour Radio', or 'Chichester Harbour Patrol' for Harbour Master's launch.
Conservancy vessels are fitted with multi-channel dual watch radio. Therefore a long call is required on Channel 14 in case the receiving station is locked onto Channel 16.