14DUALWATCH/TRI-WATCH5 DescriptionDualwatch monitors Channel 16 while you are receivingon another channel; Tri-watch monitors Channel 16 and thecall channel while receiving another channel. Dualwatch/Tri-watch is convenient for monitoring Channel 16 when you areoperating on another channel. Operationq Select Dualwatch or Tri-watch in Set mode. (p. 56)w Rotate [CHANNEL] to select the desired operating channel.e Push [DIAL•DUAL/GRP] for 1 sec. to start Dualwatch orTri-watch.• “DDUUAALL 1166” appears during Dualwatch; “TTRRII 1166” appears dur-ing Tri-watch.• A beep tone sounds when a signal is received on Channel 16.r To cancel Dualwatch/Tri-watch, push [DIAL•DUAL/GRP]again.DUALWATCH/TRI-WATCH SIMULATION• If a signal is received on Channel 16, Dualwatch/Tri-watchpauses on Channel 16 until the signal disappears.• If a signal is received on the call channel during Tri-watch,Tri-watch becomes Dualwatch until the signal disappears.• To transmit on the selected channel during Dualwatch/Tri-watch, push and hold [PTT].Dualwatch Tri-watchCall channel[Example]: Operating Tri-watch on INT Channel 2525W25W INTINTDUPDUPTAGTAGTRITRI 16163434°34.506N34.506N123123°23.236W23.236WUTCUTC 1212:00:00 TELEPHONETELEPHONEBUSYBUSY 25W25W INTINT CALLCALLDUPDUPTAGTAGTRITRI 16163434°34.506N34.506N123123°23.236W23.236WUTCUTC 1212:00:00 INTLINTLTri-watch starts. Signal is received on callchannel.BUSYBUSY 25W25W INTINTDUPDUPTAGTAGTRITRI 16163434°34.506N34.506N123123°23.236W23.236WUTCUTC 1212:00:00 TELEPHONETELEPHONESignal received on Channel16 takes priority.25W25W INTINTDUPDUPTAGTAGTRITRI 16163434°34.506N34.506N123123°23.236W23.236WUTCUTC 1212:00:00 TELEPHONETELEPHONETri-watch resumes after thesignal disappears.

explicit definitions

in case of emergency

operating rules

panel description

i function display

basic operation

i receiving and transmitting

i call channel programming

i channel comments

i optional voice scrambler operation

scan operation

i setting tag channels

I Operation

dsc operation

i mmsi code check

i dsc address id

d deleting individual id

d programming group id

d deleting group id

i position and time programming

i position and time indication

i distress call

i transmitting dsc calls

d transmitting a group call

d transmitting an all ships call

d transmitting a position request call

i receiving dsc calls

d receiving an individual call

d receiving a position request call

d receiving a polling request call

i received messages

d other messages

dsc set mode

other functions

i rx speaker function

i hailer operation

set mode

connections and maintenance

i supplied accessories

i mounting the transceiver

I MB-75 installation

troubleshooting

specifications and options

I Options

channel list

Icom iC-M505 Instruction Manual

explicit defenitions

OPERATING RULES

PANEL DESCRIPTION

Function display

Microphone

BASIC OPERATION

Receiving and transmitting

Call channel programming

Channel comments

Optional voice scrambler operation

SCAN OPERATION

Setting TAG channels

DUALWATCH/TRI-WATCH

DSC OPERATION

MMSI code check

DSC address ID

Position and time programming

Position and time indication

Distress call

d regular call

transmitting dsc calls

Receiving DSC calls

Received messages

DSC Set mode

Intercom operation

RX Speaker function

Hailer operation

Set mode programming

lcd contrast

Connections

Antenna

Mounting the transceiver

MB-75 installation

UT-112/UT-98 installation

Specifications

Options

CHANNEL LIST

TEMPLATE

IC-M505

A. Introduction

D. Dynamic information

G. Display

B. Activation of the AIS

D. Explanation of basic operation

E. Advanced operation (*)

function display

receiving and transmitting

Call channel programmng

Functon dsplay

Operaton

position and time programming

Poston and tme ndcaton

Dstress call

receiving dsc calls

received messages

Intercom operaton

Recevng DSC calls

Haler operaton

Connectons

mounting the transceiver

Mountng the transcever

Optons