
VHF 300 Series Owner’s Manual iii
Introduction
Table of Contents
Introduction...............................................................................................................i
Manual Conventions ............................................................................................................ ii
Getting Started.........................................................................................................1
Garmin GHS Series Handsets ............................................................................................. 1
Garmin GHS Series Handset Display .................................................................................. 2
Tips ...................................................................................................................................... 3
Basic Operation.......................................................................................................4
Turning the Radio On and Off.............................................................................................. 4
Adjusting the Volume ...........................................................................................................4
Adjusting the Squelch .......................................................................................................... 4
Selecting Channels .............................................................................................................. 4
Transmitting with the Radio.................................................................................................. 4
Bypassing the LO (1 W) Transmission Power Setting ......................................................... 5
Scanning and Saving Channels...........................................................................................5
Repeating the Last Received Communication.....................................................................6
Monitoring Multiple Channels............................................................................................... 6
Reprogramming the Second-Priority Channel ..................................................................... 7
Using 16/9 Mode..................................................................................................................7
Switching Between 1 W and 25 W Transmitting Modes ...................................................... 8
Adjusting the Local/Distant Receiving Sensitivity ................................................................ 8
Using the Intercom...............................................................................................................9
Using the Hailer ................................................................................................................... 9
Using the Foghorn ............................................................................................................. 10
Listening to NOAA Weather Broadcasts and Enabling Weather Alerts ............................. 11
Automatic Transmitter Identication System...................................................................... 12
Digital Selective Calling........................................................................................14
Entering Your MMSI Number ............................................................................................. 14
Viewing Your MMSI Number .............................................................................................. 15
DSC Distress Calls ............................................................................................................ 15
Placing Calls ...................................................................................................................... 18
Receiving Calls .................................................................................................................. 20
Position Tracking................................................................................................................ 21
Working with the Call Logs ................................................................................................ 23
Using the Directory ............................................................................................................ 25
Adding and Modifying Group Entries ................................................................................. 26
Conguring DSC Settings .................................................................................................. 26
Sending Voicemail ............................................................................................................. 28
Automatic Identication System......................................................................................... 28