13.5.1 Craft shall be provided with at least one
azimuth-stabilized radar operating on 9 GHz.
13.5.2 Craft of 500 gross tonnage and upwards
or craft certified to carry more than 450 passengers shall also be
provided with a 3 GHz radar or, where considered appropriate by the
Administration, a second 9 GHz radar or, other means to determine
and display the range and bearing of other surface craft, obstructions,
buoys, shorelines and navigational marks to assist in navigation and
in collision avoidance, which are functionally independent of those
referred to in 13.5.1.
13.5.3 At least one radar shall be provided with
facilities for an ARPA or ATA suitable for the motion and speed of
the craft.
13.5.4 Adequate communication facilities shall
be provided between the radar observer and the person in immediate
charge of the craft.
13.5.5 Each radar installation provided shall
be suitable for the intended craft speed, motion characteristics and
commonly encountered environmental conditions.
13.5.6 Each radar installation shall be mounted
so as to be as free as practicable from vibration.