47 CFR 80.877 - Controls and indicators required for VHF radiotelephone installation.
The controls and indicators used on equipment of the VHF radiotelephone installation must meet the following standards:
(a) The size of controls must easily permit normal adjustment. The function and the setting of the controls must be clearly indicated.d
(c) Means must be provided to reduce to extinction any light output from the equipment which could affect safety of navigation.
(d) An on/off switch must be provided for the entire installation with a visual indication that the installation is switched on.
(e) The equipment must indicate the channel number, as given in the Radio Regulations, to which it is tuned. It must allow the determination of the channel number under all conditions of external lighting. Channel 16 must be distinctively marked.
Title 47 published on 2013-10-01
no entries appear in the Federal Register after this date.