Why should detailed routine traffic move from an initial calling route to a suitable working channel?
Short answer
To keep the calling and safety route clear
A working channel carries the useful routine exchange while protecting the initial calling and higher-priority route. The move does not remove normal identification, listening or equipment requirements.
Sources and scope
Reviewed by Richard Moore on . This answer is scoped to united kingdom marine vhf and internationally harmonised procedure; check the current chart, publication, local rules and official operational guidance before acting afloat.
Quick check
Why should detailed routine traffic move from an initial calling route to a suitable working channel?