Frequencies
Public Safety
Fire
Fire Christchurch, Timaru 2 and Fire Nelson are fully cross linked and make up the Region 4 Talkgroup which is Fire Exclusive. Channels can be de-linked due to workload. Each vhf channel is in a conventional voting setup. South Island wide turnouts may be heard when only one dispatcher is on duty so only one side of the conversation will be heard.
St John Ambulance
Consists of linked repeaters in a conventional voting system. Christchurch and North Canterbury Channels groups are also linked.