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 0005 00
TM 11-5895-1847-12&P
MF/HF DSC CONTROLLER
The MF/HF DSC controller allows the reception of MF/HF DSC messages. The serial printer prints any messages
received by the DSC controller. The controller incorporates the GPS signal from the communications PLGR to insert
the vessel's position when a distress is transferred by the DSC controller to the MF/HF transceiver. The DSC
controller is powered by ship's power through the 9701 GMDSS console. The data extracted from the radio signal is
received or transmitted to the controller by the watch receiver antenna and cabling. The antenna interface between the
watch receiver and DSC controller is located inside the 9701 GMDSS console.
NAVIGATION AN/PSN-11(V)1PLGR
The navigation PLGR receives ship's position data through the navigation PLGR antenna from Global Positioning
System (GPS) satellites. The PLGR is powered by the navigation power supply through the navigation interface and
switchbox and PLGR interface cable. The navigation PLGR supplies current position information for navigation at
the chart table. The PLGR may be programmed for crypto operations using the KYK-13 or KOI-18 crypto key.
NAVIGATION INTERFACE AND SWITCHBOX
The navigation interface and switchbox provides isolated and regulated ship's power to the navigation PLGR. The
navigation PLGR may be programmed by the INMARSAT-C data terminal using the data terminal interface on the
interface and switchbox with the appropriate cable.
NAVIGATION TELEX (NAVTEX) RECEIVER
The NAVTEX receiver receives weather and distress information. The NAVTEX receiver receives the incoming
signal through cabling from the NAVTEX/weather facsimile antenna. The NAVTEX is powered by the navigation
power supply.
NAVIGATION POWER SUPPLY
The navigation power supply converts 115 vac current to a nominal 13.6 vdc. The navigation power supply, located
above the chart table, powers the navigation PLGR and the NAVTEX receiver. The navigation power supply receives
115 vac from the EP103 circuit box using circuit breaker 19 through a junction box above the chart table. The
13.6 vdc output is routed through a direct current junction box to the navigation PLGR interface and switchbox and
NAVTEX receiver.
DSC VHF/FM TRANSCEIVER
The DSC VHF/FM is an all channel DSC FM transceiver operating in the VHF range. The current ship's position is
transferred from the communications Precision Lightweight Global Positioning Receiver (PLGR) through the
communications interface and switchbox to the transceiver. Primary power for operation is received from a 115 vac to
a nominal 13.6 vdc power supply. In the event of AC failure, a power relay switches to GMDSS emergency battery
backup. A switch, located forward of the transceiver, allows the operator to turn the GMDSS emergency battery
power off or on. The radio signal for the transceiver is transmitted and received through cabling and the VHF/FM
antenna located on the mast.
LIFEBOAT RADIO (LBR)
The lifeboat radio is a two-way radiotelephone used to coordinate rescue during emergency situations. The radio may
be used on channel 6 or channel 16. The radio is powered by a lithium battery.
0005 00 2
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