Standard Horizon Explorer GX1600E User manual

EXPLORER GX1600E
25 Watt VHF/FM
Marine Transceiver
Owner's Manual
Ultra slim and compact rear case design (90 mm depth)
Meets ITU-R M493-13 Class D DSC (Digital Selective Calling)
Oversized full dot matrix display
Automatically poll the GPS position of up to 4 ships using DSC
Enter, Save, and Navigate to Waypoints with the Compass page
GPS information(LAT/LON, SOG, and COG) information shown on the LCD
Submersible JIS-8 1.5 m for 30 minutes
Noise canceling microphone with channel UP/DOWN, 16/9 and H/L keys
Programmable Scan, Priority Scan, and Dual Watch
Programmable soft keys
RAM3 Remote Access Microphone capable
Intercom between radio and RAM3 microphone
NMEA 0183 Input and Output
Die-cast chassis
E2O (Easy to Operate)
When connected to an optional GPS

GX1600EPage 2
Quick Reference Guide ............................................................................................ 4
1 GENERAL INFORMATION ................................................................................ 5
2 PACKING LIST ................................................................................................... 5
3 OPTIONS ............................................................................................................. 5
4 SAFETY / WARNING INFORMATION ............................................................... 6
5 GETTING STARTED .......................................................................................... 7
5.1 ABOUT VHF RADIO .............................................................................. 7
5.2 SELECTING AN ANTENNA ................................................................... 7
5.3 COAXIAL CABLE .................................................................................... 8
5.4 EMERGENCY (CHANNEL 16 USE) ........................................................ 8
5.5 CALLING ANOTHER VESSEL (CHANNEL 16 OR 9) .......................... 9
5.6 MAKING TELEPHONE CALLS ........................................................... 10
5.7 OPERATING ON CHANNELS 13 AND 67 ....................................... 10
6 INSTALLATION ................................................................................................. 12
6.1 LOCATION .............................................................................................12
6.2 MOUNTING THE RADIO ..................................................................... 12
6.2.1 Supplied Mounting Bracket .................................................... 12
6.2.2 Optional MMB-97 Flush Mount Bracket ............................... 13
6.3 ELECTRICAL CONNECTIONS ............................................................ 14
6.4 ACCESSORY CABLE ........................................................................... 16
6.5 CHECKING GPS CONNECTIONS .....................................................17
6.6 CHANGING THE GPS TIME ..............................................................17
6.7 CHANGING THE TIME AREA ............................................................ 18
6.8 CHANGING THE TIME DISPLAY ....................................................... 18
6.9 CHANGING COG TO TRUE OR MAGNETIC .................................. 19
6.10 OPTIONAL RAM3 (CMP30) INSTALLATION ..................................... 19
6.10.1 Connecting an External Speaker
to the RAM3 Mic Cable ........................................................ 21
6.10.2 External Speaker AF Selection ............................................. 21
7 CONTROLS AND INDICATORS ..................................................................... 22
7.1 FRONT PANEL .....................................................................................22
7.2 REAR PANEL ........................................................................................24
7.3 MICROPHONE ......................................................................................25
8 BASIC OPERATION ......................................................................................... 26
8.1 RECEPTION .......................................................................................... 26
8.2 TRANSMISSION ....................................................................................26
8.3 TRANSMIT TIME-OUT TIMER (TOT).................................................26
8.4 SIMPLEX/DUPLEX CHANNEL USE ...................................................27
8.5 DISPLAY TYPE ..................................................................................... 27
8.6 INTERNATIONAL, USA,AND CANADA MODE ................................ 28
8.7 DUAL WATCH (TO CHANNEL16)........................................................ 28
8.8 SCANNING ............................................................................................29
8.8.1 Scan Type Selection ..............................................................29
8.8.2 Scan Memory Programming .................................................. 29
8.8.3 Memory Scanning (M-SCAN)................................................. 30
8.8.4 Priority Scanning (P-SCAN).................................................... 30
8.9 PRESET CHANNELS (0 ~ 9): INSTANT ACCESS ...........................31
8.9.1 Preset Channel Programming ............................................... 31
8.9.2 Operation .................................................................................. 31
8.9.3 Deleting a Preset Channel ..................................................... 31
8.10 INTERCOM OPERATION .....................................................................32
8.10.1 Communication ........................................................................32
8.10.2 Calling....................................................................................... 32
TABLE OF CONTENTS
9 DIGITAL SELECTIVE CALLING .................................................................... 33
9.1 GENERAL .............................................................................................. 33
9.2 MARITIME MOBILE SERVICE IDENTITY (MMSI) ............................33
9.2.1 What is an MMSI? .................................................................33
9.2.2 Programming the MMSI .........................................................34
9.3 DSC DISTRESS ALERT ......................................................................35
9.3.1 Transmitting a DSC Distress Alert .......................................35
9.3.1.1 Transmitting a DSC Distress Alert
with Nature of Distress ............................................ 36
9.3.1.2 Transmitting a DSC Distress Alert
by Manually Entering a Position ............................37
9.3.1.3 Pausing a DSC Distress Call ................................. 38
9.3.1.4 Cancel a DSC Distress Call ................................... 38
9.3.2 Receiving a DSC Distress Call ............................................38
a. ACCEPT ..............................................................................38
b. PAUSE ................................................................................ 38
c. QUIT ...................................................................................38
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 Individual / Position Call Directory Setup ................................ 42
9.5.2 Individual Reply Setup ...........................................................43
9.5.3 Individual Acknowledgment Setup ......................................... 43
9.5.4 Individual / Group Call Ringer Setup ....................................44
9.5.5 Transmitting an Individual Call .............................................. 45
9.5.5.1 Individual Call using the Individual Directory ........ 45
9.5.5.2 Individual Call by Manually Entering a MMSI ...... 46
9.5.6 Receiving an Individual Call .................................................. 47
9.6 DSC LOG OPERATION .......................................................................48
9.6.1 Reviewing and Resending a Logged Transmitted Call .....48
9.6.2 Reviewing a Logged DSC Distress Call ............................. 48
9.6.3 Reviewing a Logged Other Calls ......................................... 49
9.6.4 Deleting a Call from the “DSC LOG” Directory ................. 49
9.7 GROUP CALL ....................................................................................... 51
9.7.1 Group Call Setup .................................................................... 51
9.7.2 Transmitting a Group Call .....................................................52
9.7.2.1 Group Call using the Individual Directory ............. 52
9.7.2.2 Group Call by Manually Entering a MMSI ...........53
9.7.3 Receiving a Group Call ......................................................... 54
9.8 POSITION REQUEST .......................................................................... 55
9.8.1 Position Reply Setup .............................................................. 55
9.8.2 Position Request Ringer Setup ............................................. 56
9.8.3 Transmitting a Position Request to Another Vessel ........... 56
9.8.3.1 Position Request using the Individual Directory ... 56
9.8.3.2 Position Request by Manually Entering a MMSI .57
9.8.4 Receiving a Position Request ............................................... 58
9.9 POSITION REPORT ............................................................................. 59
9.9.1 Position Report Ringer Setup ...............................................59
9.9.2 Transmitting a DSC Position Report Call ............................ 59
9.9.2.1 DSC Position Report Call
using the Individual Directory.................................. 59
9.9.2.2 DSC Position Report Call
by Manually Entering a MMSI ................................ 60
9.9.3 Receiving a DSC Position Report Call ............................... 61
9.9.4 Navigating to a Position Report ...........................................61
9.9.5 Stop Navigating to Position Report ...................................... 61
9.9.6 Saving a Position Report Call as a Waypoint ...................62
9.9.7 Navigating to a Saved Waypoint ..........................................62
9.10 MANUAL INPUTTING A GPS POSITION (LAT/LON) ...................... 63
9.11 AUTO POS POLLING .......................................................................... 64
9.11.1 Polling Time Interval Setup ................................................... 64
9.11.2 Selecting Stations to be Automatically Polled (tracked) .... 64
9.11.3 Enable/Disable Auto POS Polling ......................................... 65
9.12 DSC TEST .............................................................................................66
9.12.1 Programming MMSI into Individual Directory ......................66
9.12.2 DSC Test Call by using Individual Directory ......................66
9.12.3 DSC Test Call by Manually Entering MMSI ........................67

Page 3GX1600E
TABLE OF CONTENTS
10 ATIS SETUP ..................................................................................................... 68
10.1 ATIS CODE PROGRAMMING ............................................................. 68
10.2 ATIS CHANNEL GROUP ..................................................................... 69
11 GENERAL SETUP ........................................................................................... 70
11.1 DISPLAY ................................................................................................70
11.2 DIMMER ADJUSTING ..........................................................................71
11.3 CONTRAST ............................................................................................ 71
11.4 TIME OFFSET ...................................................................................... 72
11.5 TIME AREA ........................................................................................... 73
11.6 TIME DISPLAY ...................................................................................... 73
11.7 UNIT OF MEASURE ............................................................................74
11.8 MAGNETIC ............................................................................................ 75
11.9 KEY BEEP ............................................................................................. 75
11.10 STATION NAME .................................................................................... 76
11.11 SOFT KEYS ..........................................................................................77
11.11.1 Selecting the Number of Soft Keys ..................................... 77
11.11.2 Assigning Soft Keys ...............................................................77
11.11.3 Selecting How Long the Soft Keys are Shown .................. 78
12 CHANNEL FUNCTION SETUP ...................................................................... 80
12.1 CHANNEL GROUP
(INTERNATIONAL, USA, or CANADA BAND SELECTION) ........... 80
12.2 SCAN MEMORY ...................................................................................80
12.3 SCAN TYPE ..........................................................................................81
12.4 SCAN RESUME ....................................................................................81
12.5 PRIORITY CHANNEL ........................................................................... 82
12.6 CHANNEL NAME .................................................................................. 83
13 DSC SETUP ..................................................................................................... 84
13.1 INDIVIDUAL DIRECTORY .................................................................... 84
13.2 INDIVIDUAL REPLY ............................................................................. 84
13.3 INDIVIDUAL ACKNOWLEDGMENT .................................................... 84
13.4 INDIVIDUAL RINGER ........................................................................... 84
13.5 GROUP DIRECTORY ...........................................................................84
13.6 POSITION REPLY ................................................................................ 85
13.7 AUTO POSITION INTERVAL .............................................................. 85
13.8 DSC BEEP ............................................................................................85
13.9 AUTO CHANNEL SWITCH TIME .......................................................86
14 WAYPOINTS ...................................................................................................... 88
14.1 MARKING A POSITION .......................................................................88
14.2 ADDING A WAYPOINT ........................................................................ 89
14.3 EDITING A WAYPOINT ........................................................................ 90
14.4 DELETING A WAYPOINT .................................................................... 90
14.5 SAVING A DSC POSITION CALL AS A WAYPOINT ...................... 91
14.6 NAVIGATING TO A SAVED WAYPOINT ...........................................91
14.7 STOP NAVIGATING TO A WAYPOINT .............................................. 92
15 RAM3 (CMP30)REMOTE MIC OPERATION ..............................................94
15.1 REMOTE MIC CONTROLS ................................................................94
15.2 ASSIGNING SOFT KEYS ................................................................... 96
16 MAINTENANCE ................................................................................................ 98
16.1 REPLACEMENT PARTS ......................................................................98
16.2 FACTORY SERVICE .............................................................................98
16.3 TROUBLESHOOTING CHART ............................................................99
17 INTL CHANNEL ASSIGNMENTS ................................................................. 100
18 RESET PROCEDURES ................................................................................. 102
18.1 MEMORY CLEAR ...............................................................................102
18.2 MICROPROCESSOR RESETTING ...................................................102
19 SPECIFICATIONS ........................................................................................... 103
19.1 GENERAL ............................................................................................103
19.2 TRANSMITTER.................................................................................... 103
19.3 RECEIVER ...........................................................................................104
19.4 NMEA INPUT OUTPUT ..................................................................... 104
19.5 DIMENSIONS ......................................................................................105

GX1600EPage 4
QUICK REFERENCE GUIDE
This transceiver is equipped with the E2O (Easy-To-Operate) system. You can
do the basic operation in numerical order of the illustration below.
Press and hold the button to turn on or off the radio.
Rotate the VOL knob to adjust the speaker audio volume.
Press the /(or microphones / ) button to selects the
operating channel.
Move the SQL knob clockwise to squelch or counter clockwise un-squelch
the radio.
Press the (or microphones ) button to toggle the transmit power
between High (25W) and Low (1W).
Press the (or microphones ) button to recall channel 16.
Press and hold the (or microphones ) button to recall channel 9.
Press again to revert to the last selected channel.
Place your mouth about 1.5 cm away from Mic hole and speak in a normal
voice level while pressing the PTT switch.
M IC H OLE









Page 5GX1600E
1 GENERAL INFORMATION
The STANDARD HORIZON EXPLOPER GX1600E Marine VHF/FM Marine
transceiver is capable of ITU-R 493-13 DSC (Digital Selective Calling) Class D
operation. Class D operation allows continuous receiving of Digital Selective
Calling functions on channel 70 even if the radio is receiving a call. The
GX1600E VHF operate on all currently-allocated marine channels which are
switchable for use with International, USA, or Canadian regulations. Emer-
gency channel 16 can be immediately selected from any channel by pressing
the red key.
The GX1600E can be operated from 11 to 16 VDC and has a switchable RF
output power of 1 watt or 25 watts.
Other features of the GX1600E VHF’s include: Slim design only 90 mm deep,
Noise canceling microphone with controls, optional RAM3 second station
remote-control microphone with display, intercom between radio and optional
RAM3, scanning, priority scanning, Dual Watch, DSC Position Polling up to 4
vessels, high and low voltage warning, and GPS repeatability.
2 PACKING LIST
When the package containing the transceiver is first opened, please check it
for the following contents:
GX1600E Transceiver
Mounting Bracket and hardware
Owner’s Manual
Flush Mount Template
Warranty Card
Power Cord
Ferrite Core
3 OPTIONS
HC1600.............................................................................. Dust Cover (White)
MMB-97 .......................................................................... Flush-Mount Bracket
CMP30B/W ............... Remote-Access Microphone (RAM3 Mic, Black/White)
CT-100 ..................................................... 7 m Extension Cable for RAM3 Mic
MLS-310 ............ 10W amplified External Speaker with on/off Volume control
MLS-300 ...................................................................... External Loud Speaker

GX1600EPage 6
4 SAFETY / WARNING INFORMATION
IMPORTANT SAFETY INFORMATION
Please read this manual carefully to become familiar with the features
of this transceiver before using it for the first time.
The installation of this equipment should be made in such a manner as to
respect the EC recommended electromagnetic field exposure limits (1999/519/
EC).
The maximum RF power available from this device is 25 W. The antenna should
be mounted as high as possible for maximum efficiency and that this installa-
tion height should be at least 5 meters above ground (or accessible) level. In
the case that an antenna can not be installed at a reasonable height, then the
transmitter should neither be continuously operated for long periods if any
person is within 5 metres of the antenna, nor operated at all if any person is
touching the antenna. non compliance with these recommendations and trans-
mitting for more than 50% of the total radio use time (50 % duty cycle) may
cause RF complaince exposure requirements to be exceeded.
In all cases any possible risk depends on the transmitter being activated for
long periods (actual recommendation limits are specified as an average of 6
minutes). Normally the transmitter is not active for long periods of time.
Do not transmit without an antenna connected to the radio. When transmitting
speak into the microphone holding it between 1.5 cm and 5 cm from your
mouth.
The radio must be used with a maximum operating duty cycle not exceeding
10 % in normal PTT configurations. Do not transmit for more than 10 % of the
total radio use time (1:9 duty cycle).
The rear case of the radio can become hot when the radio is used on transmit
for long periods that exceed the Duty Cycle as stated above. In order to protect
the user from the risk of burning if the rear case is touched in these circum-
stances, the rear case enclosure must be fitted and permanently attached to
the radio using the fixing screws provided whenever the unit is installed in a
position where it is possible during normal usage to touch the rear of the radio.

Page 7GX1600E
5 GETTING STARTED
5.1 ABOUT VHF RADIO
The radio frequencies used in the VHF marine band are between 156 and 162
MHz. The marine VHF band provides communications over distances that are
essentially “line of sight” (VHF signals do not travel well through objects such
as buildings, hills or trees). Actual transmission range depends much more on
antenna type, gain and height than on the power output of the transmitter. On
a fixed mount 25 W radio transmission expected distances can be greater
than 25 km, for a portable 5 W radio transmission the expected distance can
be greater than 8 km in “line of sight”.
5.2 SELECTING AN ANTENNA
Marine antennas are made to radiate signals equally in all horizontal direc-
tions, but not straight up. The objective of a marine antenna is to enhance the
signal toward the horizon. The degree to which this is accomplished is called
the antenna’s gain. It is measured in decibels (dB) and is one of the major
factors in choosing an antenna. In terms of effective radiated power (ERP),
antennas are rated on the basis of how much gain they have over a theoretical
antenna with zero gain. A 1 m, 3 dB gain antenna represents twice as much
gain over the imaginary antenna.
Typically a 1 m 3 dB gain stainless steel whip is used on a sailboat mast. The
longer 2.5 m 6 dB fiberglass whip is primarily used on power boats that require
the additional gain.
3dB
6dB
9dB

GX1600EPage 8
5.3 COAXIAL CABLE
VHF antennas are connected to the transceiver by means of a coaxial cable –
a shielded transmission line. Coaxial cable is specified by it’s diameter and
construction.
For runs less than 6 m, RG-58/U, about 6 mm in diameter is a good choice.
For runs over 6 m but less than 15 m, the larger RG-8X or RG-213/U should be
used for cable runs over 15 m RG-8X should be used. For installation of the
connector onto the coaxial cable refer to the figure below.
To get your coax cable through a fitting and into your boat’s interior, you
may have to cut off the end plug and reattach it later. You can do this if
you follow the directions that come with the connector. Be sure to make
good soldered connections.
5.4 EMERGENCY (CHANNEL 16 USE)
Channel 16 is known as the Hail and Distress Channel. An emergency may be
defined as a threat to life or property. In such instances, be sure the transceiver
is on and set to CHANNEL 16. Then use the following procedure:
1. Press the microphone push-to-talk switch and say “Mayday, Mayday, May-
day. This is , , ” (your vessel’s name).
2. Then repeat once: “Mayday, ” (your vessel’s name).
3. Now report your position in latitude/longitude, or by giving a true or mag-
netic bearing (state which) to a well-known landmark such as a navigation
aid or geographic feature such as an island or harbor entry.
4. Explain the nature of your distress (sinking, collision, aground, fire, heart
attack, life-threatening injury, etc.).
5. State the kind of assistance your desire (pumps, medical aid, etc.).
6. Report the number of persons aboard and condition of any injured.
1/16''
3/4''
1 1/8'' 3/4''
Adapter
1/8''
5/8''3/8''
2 mm
30 mm
20 mm 20 mm
3 mm
10 mm 15 mm

Page 9GX1600E
7. Estimate the present seaworthiness and condition of your vessel.
8. Give your vessel’s description: length, design (power or sail), color and
other distinguishing marks. The total transmission should not exceed 1
minute.
9. End the message by saying “OVER”. Release the microphone button and
listen.
10. If there is no answer, repeat the above procedure. If there is still no
response, try another channel.
NOTE
The GX1600E have DSC Distress calling, that can transmit a distress
call digitally to all ships with compatible DSC radios. Refer to section “9
DIGITAL SELECTIVE CALLING”.
5.5 CALLING ANOTHER VESSEL (CHANNEL 16 OR 9)
Channel 16 may be used for initial contact (hailing) with another vessel.
However, its most important use is for emergency messages. This channel
must be monitored at all times except when actually using another channel.
It is monitored by the U.S. and Canadian Coast Guards and by other vessels.
Use of channel 16 for hailing must be limited to initial contact only.
Calling should not exceed 30 seconds, but may be repeated 3 times at
2-minute intervals. In areas of heavy radio traffic, congestion on channel 16
resulting from its use as a hailing channel can be reduced significantly in U.S.
waters by using channel 9 as the initial contact (hailing) channel for non-emer-
gency communications. Also hailing on channel 9, the calling time should not
exceed 30 seconds but may be repeated 3 times at 2-minute intervals.
Prior to making contact with another vessel, refer to the channel charts in this
manual, and select an appropriate channel for communications after initial
contact. For example, Channels 68 and 69 of the U.S. VHF Charts are some of
the channels available to non-commercial (recreational) boaters. Monitor your
desired channel in advance to make sure you will not be interrupting other
traffic, and then go back to either channel 16 or 9 for your initial contact.
When the hailing channel (16 or 9) is clear, press the PTT button on the mic
and state the name of the other vessel you wish to call and then “this is”
followed by the name of your vessel and your Station License (Call Sign) then
release the PTT button on the mic. When the other vessel returns your call,
immediately request another channel by pressing the PTT button on the mic
and saying “go to,” the number of the other channel, say “over” and release
the PTT button on the mic. Then switch to the new channel. When the new
channel is not busy, call the other vessel.

GX1600EPage 10
After a transmission, say “over,” and release the microphone’s push-to-talk
(PTT) switch. When all communication with the other vessel is completed, end
the last transmission by stating your Call Sign and the word “out.” Note that it
is not necessary to state your Call Sign with each transmission, only at the
beginning and end of the contact.
Remember to return to Channel 16 when not using another channel. Some
radios automatically monitor Channel 16 even when set to other channels or
when scanning.
5.6 MAKING TELEPHONE CALLS
To make a radiotelephone call, use a channel designated for this purpose, The
fastest way to learn which channels are used for radiotelephone traffic is to
ask at a local marina. Channels available for such traffic are designated
Public Correspondence channels on the channel charts in this manual. Some
examples for USA use are Channels 24, 25, 26, 27, 28, 84, 85, 86, and 87.
Call the marine operator and identify yourself by your vessel’s name, The marine
operator will then ask you how you will pay for the call (telephone credit card,
collect, etc.) and then link your radio transmission to the telephone lines.
The marine telephone company managing the VHF channel you are using
may charge a link-up fee in addition to the cost of the call.
5.7 OPERATING ON CHANNELS 13 AND 67
(USA Channel Group Only)
Channel 13 is used at docks and bridges and by vessels maneuvering in port.
Messages on this channel must concern navigation only, such as meeting and
passing in restricted waters.
Channel 67 is used for navigational traffic between vessels.
By regulation, power is normally limited to 1 Watt on these channels. Your
radio is programmed to automatically reduce power to this limit on these
channels. However, in certain situations it may be necessary to temporarily
use a higher power. See page 23 ( key) for means to temporarily override
the low-power limit on these two channels.

Page 11GX1600E
MEMO

GX1600EPage 12
6 INSTALLATION
6.1 LOCATION
The radio can be mounted at any angle. Choose a mounting location that:
• is far enough from any compass to avoid any deviation in compass
reading due to the speaker magnet
• provides accessibility to the front panel controls
• allows connection to a power source and an antenna
• has nearby space for installation of a microphone hanger
• choose a mounting location that is at least 1 m away from the radio’s
antenna.
Note: To insure the radio does not affect the compass or radios performance is
not affected by the antenna location, temporarily connect the radio in the
desired location and:
a. Examine the compass to see if the radio causes any deviation
b. Connect the antenna and key the radio. Check to ensure the radio is
operating correctly by requesting a radio check.
6.2 MOUNTING THE RADIO
6.2.1 Supplied Mounting Bracket
The supplied mounting bracket allows desktop mounting.
Use a 5.2 mm bit to drill the holes to a surface which is more 10 mm thick and
can support more than 1.5 kg and secure the bracket with the supplied screws,
spring washers, flat washers, and nuts.

Page 13GX1600E
6.2.2 Optional MMB-97 Flush Mount Bracket
1. Referring to Figure 1, remove the protect cover and its two mounting screws
from the GX1600E. Save the protect cover and its two mounting screws.
They should be reinstalled when you do not the flush mount operation.
2. Use the supplied template to mark the location where the rectangular hole
is to be cut. Confirm the space behind the dash or panel is deep enough to
accommodate the transceiver (at least 90 mm deep).
There should be at least 1.3 cm between the transceiver’s heatsink and
any wiring, cables or structures.
3. Cut out the rectangular hole 73 x 138 mm and insert the transceiver.
4. Referring to Figure 2, fasten the brackets to the rear panel of the trans-
ceiver.
5. Turn the adjusting screw to adjust the tension so that the transceiver is
tight against the mounting surface.
163 mm
Adjusting Screw
FIGURE 1
FIGURE 2

GX1600EPage 14
6.3 ELECTRICAL CONNECTIONS
CAUTION
Reverse polarity battery connections will damage the radio!
Connect the power cord and antenna to the radio. Antenna and Power Supply
connections are as follows:
1. Mount the antenna at least 1 m away from the radio. At the rear of the
radio, connect the antenna cable. The antenna cable must have a PL259
connector attached. RG-8/U coaxial cable must be used if the antenna is
7.5 m or more from the radio. RG58 cable can be used for distances less
than 7.5 m.
2. Connect the red power wire to a 11.0 V to 16.5 V DC power source
(Normal: 13.8 VDC). Connect the black power wire to a negative ground.
3. If an optional remote extension speaker is to be used, refer to section “6.4
ACCESSORY CABLE” for connections.
4. It is advisable to have a Certified Marine Technician check the power
output and the standing wave ratio of the antenna after installation.
GPS Navigation Receiver
Optional Speaker
Optional Speaker
Antenna
Fuse
Red
Power Source
Black
Water proof
Deck Outlet
Optional CMP30 Remote MIC

Page 15GX1600E
Ferrite Core Installation
To suppress RF interference that can cause abnormal operation of the
transceiver, attach the supplied ferrite core to the DC Input Cable, Accessory
Connection Cable, and External Speaker Cable together, then snap its two
halves together, per the illustration below.
Attach the ferrite core as close as possible to the transceiver body, as shown.
Finally, wind some plastic tape around the ferrite core, to prevent vibration
from causing the two halves to split apart.
Fuse Replacement (125V 6A)
To take out the Fuse from the Fuse Holder, hold
both ends of the Fuse Holder and pull the Fuse
Holder apart without bending the Fuse Holder.
When you replace the Fuse, please confirm that
the Fuse is tightly fixed on the metal contact
located inside the Fuse Holder. If the metal con-
tact holding the fuse is loose, the Fuse holder
may heat up.
As close as possible
Cables
Ferrite Core
Snap together

GX1600EPage 16
6.4 ACCESSORY CABLE
Wire Color/Description
WHITE - External Speaker (+)
SHIELD - External Speaker (–)
BLUE - NMEA GPS Input (+)
GREEN - NMEA GPS Input (–)

GRAY - NMEA DSC Output (+)
BROWN - NMEA GPS Output (–)

Connection Examples
Connect to external 4 Ohm audio speaker
Connect to external 4 Ohm audio speaker
Connect to NMEA (+)output of GPS
Connect to NMEA (–) output or common ground of GPS
Connect to NMEA (+)intput of GPS
Connect to NMEA (–) input or common ground of GPS
: Some GPS Chart plotters have a single wire for NMEA Signal Ground, if
this is the case connect the NMEA Input (–) and NMEA output (–) to the
GPS Chart Plotters single NMEA Signal Ground wire.
When connecting the external speaker or GPS navigation receiver, strip off
about 2.5 cm of the specified wire’s insulation, then splice the ends together.
GPS Connections (4800 baud)
NMEA INPUT (GPS Information)
• The GPS must have the NMEA Output turned on and set to 4800 Baud in
the setup menu. If there is a selection for parity select none.
• For further information on interfacing /setting up your GPS. Please contact
the manufacturer of the GPS receiver.
•GX1600E can read NMEA-0183 version 2.0 or higher.
• The NMEA 0183 input sentences are GLL, GGA, RMC and GNS (RMC
sentence is recommended).
NMEA Output (DSC)
The NMEA 0183 output sentences are DSC and DSE.
GPS Receiver
External Speaker
Shield
White
Plotter Connection
Radio Wires
Green: NMEA GPS Input ( )
Gray: NMEA DSC Output ( )
NMEA OUT ( )
NMEA IN ( )
NMEA OUT ( )
NMEA IN ( )
Blue: NMEA GPS Input ( )
Brown: NMEA DSC Output ( )

Page 17GX1600E
TIME OFFSET TABLE
6.5 CHECKING GPS CONNECTIONS
After connections have been made between the
GX1600E and the GPS, a small satellite icon will appear
on the top right corner of the display and your current
location (Latitude/Longitude) is shown on the display.
NOTE
If there is a problem with the NMEA connection between the radio and
the GPS, the GPS icon will blink continuously until the connection is
corrected.
6.6 CHANGING THE GPS TIME
From the Factory the GX1600E shows GPS satellite time or UTC time when
an optional GPS is connected. A time offset is needed to show the local time in
your area. The Time Offset must be changed in order for the radio to display
the current time in your area. Please see the Offset Time Table at the bottom
of this page.
1. Press and hold down the key until “Setup MenuSetup Menu
Setup MenuSetup Menu
Setup Menu”
appears, then select “GENERAL SETUPGENERAL SETUP
GENERAL SETUPGENERAL SETUP
GENERAL SETUP” with the
/key.
2. Press the soft key, then select “TIME OFF-TIME OFF-
TIME OFF-TIME OFF-
TIME OFF-
SETSET
SETSET
SET” with the /key.
3. Press the soft key, then press the /
key to select time offset of your location. See illus-
tration below to find your offset time. If “00:0000:00
00:0000:00
00:00” is
assigned, the time is the same as UTC (Universal
Time Coordinated or GPS Satellite Time).
4. Press the soft key to store the time offset.
5. Press the soft key several times to return to
radio operation.

GX1600EPage 18
6.7 CHANGING THE TIME AREA
This menu selection allows the radio to show UTC time or local time with the
offset.
1. Press and hold down the key until “Setup MenuSetup Menu
Setup MenuSetup Menu
Setup Menu”
appears, then select “GENERAL SETUPGENERAL SETUP
GENERAL SETUPGENERAL SETUP
GENERAL SETUP” with the
/key.
2. Press the soft key, then press the /
key to “TIME AREATIME AREA
TIME AREATIME AREA
TIME AREA”.
3. Press the soft key.
4. Press the /key to select “UTCUTC
UTCUTC
UTC” or “LOCALLOCAL
LOCALLOCAL
LOCAL”.
5. Press the soft key to store the selected
setting.
6. Press the soft key several times to return to
radio operation.
6.8 CHANGING THE TIME DISPLAY
This menu selection allows the radio to setup to show time in 12-hour or 24-
hour format.
1. Press and hold down the key until “Setup MenuSetup Menu
Setup MenuSetup Menu
Setup Menu”
appears, then select “GENERAL SETUPGENERAL SETUP
GENERAL SETUPGENERAL SETUP
GENERAL SETUP” with the
/key.
2. Press the soft key, then press the /
key to select “TIME DISPLAYTIME DISPLAY
TIME DISPLAYTIME DISPLAY
TIME DISPLAY”.
3. Press the soft key.
4. Press the /key to select “12 HOUR12 HOUR
12 HOUR12 HOUR
12 HOUR” or “2424
2424
24
HOURHOUR
HOURHOUR
HOUR”.
5. Press the soft key to store the selected
setting.
6. Press the soft key several times to return to
radio operation.

Page 19GX1600E
6.9 CHANGING COG TO TRUE OR MAGNETIC
Allows the GPS Course Over Ground to be selected to show in True or Mag-
netic. Factory default is True however by following the steps below the COG
can be changed to Magnetic.
1. Press and hold down the key until “Setup MenuSetup Menu
Setup MenuSetup Menu
Setup Menu”
appears, then select “GENERAL SETUPGENERAL SETUP
GENERAL SETUPGENERAL SETUP
GENERAL SETUP” with the
/key.
2. Press the soft key, then press the /
key to select “MAGNETICMAGNETIC
MAGNETICMAGNETIC
MAGNETIC”.
3. Press the soft key.
4. Press the /key to select “MAGNETICMAGNETIC
MAGNETICMAGNETIC
MAGNETIC” or
“TRUETRUE
TRUETRUE
TRUE”.
5. Press the soft key to store the selected
setting.
6. Press the soft key several times to return to
radio operation.
6.10 OPTIONAL RAM3 (CMP30)INSTALLATION
The GX1600E is capable of using a RAM3 (CMP30)Remote Station Micro-
phone to remotely control the Radio and DSC functions. In addition the
GX1600E can operate as a full function intercom system between the RAM3
and the radio.
1. Connect the Extension Cable to the Remote
Mic eight pin connector on the rear panel,
then tighten the Cable Nut (see illustration
at the right).
2. Install the ferrite core (supplied with the
RAM3 (CMP30)Remote Station Micro-
phone) to the Extension Cable, then snap its two halves together, per the
illustration below.
3. Attach the ferrite core as close as possible to the MIC plug, as shown.
4. Finally, wind some plastic tape around each ferrite core, to prevent vibra-
tion from causing the two halves to split apart.
As close as possible
Routing Cable or
CT-100 Extension Cable
Ferrite Core
Snap together
External Speaker
Connections

GX1600EPage 20
5. Referring to illustration below, make a 30 mm hole in the wall, then insert
the Extension Cable into this hole. Connect the Gasket and Mount Base to
the Extension Cable Connector using the Nut.
6. Drill the four Screw holes (approx. 2 mm) on the wall, then install the Mount-
ing Base to the wall using four screws.
7. Put the Rubber Cap on to the Nut. The installation is now complete.
NOTE
The routing cable can be cut and spliced, however care needs to be
taken when reconnecting the wires to ensure water integrity.
Before cutting the cable make sure it is not plugged into the radio. After
cutting you will notice there are the following wires:
Brown, Purple, Blue, Green, White, Shield
The White and Shield wires are wrapped in foil. Remove the foil, and
separate the White and Shield wires.
Wall
Gasket
Mounting Bracket
Routing Cable
Cap
Nut
External Speaker Connections
Ferrite Core