Specifications

Chapter 3 – Boat Systems
Section F. Communications/Navigation System (RB-HS)
Introduction
All of the standard marine communications and navigation equipment is
mounted in the cabin of the RB-HS.
NOTE
F.1. Motorola
VHF-FM Astro
Spectra W9
Transceiver and
Control Head
The Motorola VHF-FM Astro Spectra W9 control head (Figure 3-37) is
mounted in the cabin on top of the port dash panel. The transceiver is
located forward of the coxswain console and is accessible through the cuddy
cabin. The transceiver is used for communicating on VHF marine band
frequencies, 146 to 174 MHz. The transceiver meets the digital encryption
standard (DES) requirements for APCO 25. The radio requires a 12-VDC
power input. The radio antenna is located atop the cabin, port side.
Figure 3-37
Motorola VHF-FM Astro Spectra W9 Control Head
Frequent operations and position reports between the boat and its operational control
(OPCON) are critical to crew safety and timely mishap follow-up. Every boat must have
the capability for communicating by radio to the station and other vessels. For radio
protocol, channel selection, and additional radio communication information, refer to
Chapter 11 in the Boat Crew Seamanship Manual, COMDTINST M16114.5 (series); the
Telecommunications Manual, COMDTINST M2000.3 (series); and the Radiotelephone
Handbook, COMDTINST 2300.7 (series).
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