Table of Contents
Introduction ..................................................................... 1
Handset Overview ...................................................................... 1
Home Screen .............................................................................. 1
System Status Icons .............................................................. 1
Basic Operation .............................................................. 1
Turning On and Off the Device ................................................... 1
Adjusting the Volume .................................................................. 1
Adjusting the Squelch Level ....................................................... 1
Selecting the Frequency Band ................................................... 2
Selecting a Channel .................................................................... 2
Transmitting with the Radio ........................................................ 2
Scanning and Saving Channels ................................................. 2
Scanning All Channels ........................................................... 2
Saving a Channel ................................................................... 2
Removing a Saved Channel .................................................. 2
Scanning Saved Channels .................................................... 2
Monitoring Multiple Channels ................................................. 2
Selecting a Different Second-Priority Channel ........................... 2
Switching to Priority Channels .................................................... 3
Setting the Receiving Sensitivity ................................................. 3
Switching Between 1 W and 25 W Transmitting Modes ............. 3
Bypassing the Low Transmission Power Setting ................... 3
Using the Hailer Function ........................................................... 3
Foghorn ...................................................................................... 3
Sounding the Foghorn Automatically ..................................... 3
Sounding the Foghorn Manually ............................................ 3
Adjusting the Sound Frequency of the Foghorn .................... 3
Entering Text .............................................................................. 4
NOAA® Weather Broadcasts and Alerts ...................... 4
Tuning Weather Broadcasts ....................................................... 4
Enabling and Disabling Weather Alerts ...................................... 4
Digital Selective Calling ................................................. 4
Digital Selective Calling .............................................................. 4
Entering Your MMSI Number ...................................................... 4
Viewing Your MMSI Number ...................................................... 4
Distress Calls .............................................................................. 4
Sending an Undesignated Distress Call ................................ 4
Sending a Designated Distress Call ...................................... 5
Waiting For and Receiving and Acknowledgment for a
Distress Call ........................................................................... 5
Stopping Automatic Retransmission of Distress Calls ........... 5
Revoking a Distress Call ........................................................ 5
Placing Calls ............................................................................... 5
Placing Individual Calls .......................................................... 5
Placing Group Calls ............................................................... 5
Placing All-Ships Calls ........................................................... 5
Individual Call or Group Call Channels .................................. 6
Requesting a Vessel's Position .............................................. 6
Receiving Calls ........................................................................... 6
Receiving Distress Calls and Distress Relay Calls ................ 6
Receiving All-Ships Urgency and Safety Calls ...................... 6
Receiving Individual Routine Calls ......................................... 6
Receiving Position Requests ................................................. 6
Receiving Position Calls ........................................................ 6
Receiving Group Calls ........................................................... 6
Position Tracking ........................................................................ 7
Selecting Vessels and Activating Position Tracking .............. 7
Viewing and Deactivating Vessels on the Position Tracking
List ......................................................................................... 7
Deleting a Vessel From the Position Tracking List ................ 7
Call Log ....................................................................................... 7
Viewing the Calls in the Call Log ........................................... 7
Placing a Call from a Call Log ................................................ 7
Saving a Vessel or Station to the Directory from the Call
Log ......................................................................................... 7
Deleting a Call Log Entry ....................................................... 7
Directory ..................................................................................... 7
Viewing Saved Vessels and Stations in the Directory ........... 7
Adding an Entry to the Directory ............................................ 7
Editing an Entry in the Directory ............................................ 8
Deleting an Entry from the Directory ...................................... 8
Adding a Group ...................................................................... 8
Editing a Group ...................................................................... 8
Deleting a Group .................................................................... 8
DSC Settings .............................................................................. 8
Manual Position Information .................................................. 8
Changing the Channel to 16 Automatically ............................ 8
Sending Automatic Replies .................................................... 8
Automatic Transmitter Identification System .............. 8
Entering Your ATIS Identification Number .................................. 8
Turning On and Off ATIS ............................................................ 9
Viewing Your ATIS Identification Number .................................. 9
NMEA 0183 and NMEA 2000® ....................................... 9
Additional Functionality with Other Garmin Devices ................... 9
Communicating Over NMEA 0183 or NMEA 2000 ..................... 9
Configuring DSC NMEA Transmissions ..................................... 9
System Settings ............................................................. 9
Number Settings ......................................................................... 9
Units Settings .............................................................................. 9
Configuring the Time Offset ................................................. 10
Selecting the Frequency Band ................................................. 10
Changing a Channel Name ...................................................... 10
Restoring Factory Settings ....................................................... 10
Appendix ....................................................................... 10
Alarms and Messages .............................................................. 10
Channel Lists ............................................................................ 10
VHF 315 Series Specifications ................................................. 10
NMEA ....................................................................................... 10
NMEA 0183 IN Sentences Supported ................................. 10
NMEA 0183 OUT Sentences Supported ............................. 10
NMEA 2000 PGN Information .............................................. 10
Cleaning the Outer Casing ....................................................... 11
Index .............................................................................. 12
Table of Contents i