
GX3000EPage 2
TABLE OF CONTENTS
1 GENERAL INFORMATION ............................................................................................................... 4
2 PACKING LIST ................................................................................................................................. 4
3 OPTIONS ........................................................................................................................................... 4
4 INSTALLATION NOTE ...................................................................................................................... 5
5 GETTING STARTED ......................................................................................................................... 6
5.1 ABOUT VHF RADIO .............................................................................................................. 6
5.2 SELECTING AN ANTENNA .................................................................................................. 6
5.3 COAXIAL CABLE ................................................................................................................... 7
6 INSTALLATION ................................................................................................................................. 8
6.1 LOCATION ............................................................................................................................... 8
6.2 MOUNTING THE RADIO ...................................................................................................... 8
6.2.1 Supplied Universal Mounting Bracket .......................................................................... 8
6.2.2 Optional MMB-84 Flush Mount Bracket ...................................................................... 9
6.3 ELECTRICAL CONNECTIONS ............................................................................................ 10
6.4 ACCESSORY CABLE .......................................................................................................... 11
6.5 CHECKING GPS CONNECTIONS ..................................................................................... 12
6.6 CHANGING THE GPS TIME.............................................................................................. 12
6.7 CHANGING THE TIME LOCATION ................................................................................... 13
6.8 CHANGING COG TO TRUE OR MAGNETIC ................................................................. 14
6.9 RECEIVER AUDIO TONE CONTROL ............................................................................... 15
6.10 OPTIONAL ENHANCED RAM+ SECOND STATION MIC
AND/OR VH-310 HANDSET INSTALLATION ...................................................................... 16
7 CONTROLS AND INDICATORS .................................................................................................... 18
8 BASIC OPERATION ....................................................................................................................... 24
8.1 RECEPTION .......................................................................................................................... 24
8.2 TRANSMISSION ................................................................................................................... 24
8.3 TRANSMIT TIME-OUT TIMER (TOT) ................................................................................. 24
8.4 SIMPLEX / DUPLEX CHANNEL USE ................................................................................. 25
8.5 USA, CANADA, AND INTERNATIONAL MODE ................................................................. 25
8.6 NOAA WEATHER CHANNELS ........................................................................................... 25
8.6.1 NOAA Weather Alert .................................................................................................... 25
8.6.2 NOAA Weather Alert Testing ...................................................................................... 26
8.7 EMERGENCY (CHANNEL 16 USE) ..................................................................................... 26
8.8 CALLING ANOTHER VESSEL (CHANNEL 16 OR 9) ........................................................ 27
8.9 MAKING TELEPHONE CALLS ........................................................................................... 27
8.10 OPERATING ON CHANNELS 13 AND 67 .................................................................... 28
8.11 DUAL WATCH (TO PRIORITY CHANNEL) ...................................................................... 28
8.12 SCANNING ......................................................................................................................... 29
8.12.1 Selecting the Scan Mode .............................................................................................. 29
8.12.2 Memory Scanning (M-SCAN) ...................................................................................... 29
8.12.3 Priority Scanning (P-SCAN) ........................................................................................ 23
8.13 FOG / PA OPERATION ...................................................................................................... 31
8.13.1 Operating the PA HAIL mode ...................................................................................... 31
8.13.2 Operating the FOG HORN mode ................................................................................ 31
8.14 NAVIGATION INDICATION ............................................................................................... 32
8.15 INTERCOM OPERATION .................................................................................................. 32
8.15.1 Communication ............................................................................................................ 33
8.15.2 Calling ........................................................................................................................... 33
8.16 VOICE SCRAMBLER ........................................................................................................ 34
9 DIGITAL SELECTIVE CALLING .................................................................................................... 35
9.1 GENERAL .............................................................................................................................. 35
9.2 MARITIME MOBILE SERVICE IDENTITY (MMSI) .............................................................. 35
9.2.1 What is an MMSI? .......................................................................................................... 35
9.2.2 Programming the MMSI ................................................................................................ 36
9.3 DSC DISTRESS ALERT ...................................................................................................... 37
9.3.1 Tansmitting a DSC Distress Alert ................................................................................ 37
9.3.2 Receiving a DSC Distress Alert .................................................................................. 39
9.3.3 Distress Relay ................................................................................................................ 39
9.4 ALL SHIPS CALL ................................................................................................................. 40
9.4.1 Transmitting an All Ships Call ..................................................................................... 40
9.4.2 Receiving an All Ships Call ......................................................................................... 41
9.5 INDIVIDUAL CALL ................................................................................................................ 42
9.5.1 Setting up the Individual / Position Call Directory .................................................... 42
9.5.2 Setting up Individual Ringer ........................................................................................ 43
9.5.3 Setting up Individual / Group Call Ringer ................................................................... 44
9.5.4 Transmitting an Individual Call .................................................................................... 45