Standard Communications GX600D VHF Marine DSC Radio User Manual Installation manual

Standard Communications Pty Ltd VHF Marine DSC Radio Installation manual

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Installation manual

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PRINTED IN ENGLISH
INTERNATIONAL : 0168 !
USA : FCC ID : TXJGX600D
CANADA : IC 7332A-GX600D
AUSTRALIA:
GX600D
VHF MARINE
DSC RADIO
INSTRUCTION MANUAL
WARNING: RADIO OPERATOR INFORMATION
	The GX600D is a radio transmitting device.
• W
 hen transmitting, keep any part of your
head or body more than 1.5m from
the antenna.
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received,
including interference that may cause undesired operation.
OPERATOR QUALIFICATIONS
AUSTRALIAN CUSTOMERS
• D
 o not transmit near electrical blasting
equipment or in explosive atmospheres.
A restricted Radiotelephone Operator Permit is the licence
most often held by small vessel radio operators when a
radio is not required for safety purposes.
• D
 o not allow children to operate a radio
transmitter unsupervised.
The restricted Radiotelephone Operator Permit must be
posted near the transceiver or be kept with the operator.
Only a licenced radio operator may operate a transceiver.
However, non-licenced individuals may talk over a transceiver
if a licenced operator starts, supervise, ends the call and
makes the necessary log entries.
This equipment complies with FCC radiation exposure  
limits set forth for an uncontrolled enviroment. This device’s
antenna must be installed in accordance with provided
instructions. Further, this transmitter must not be co-located
or operated in conjunction with any other antenna or
tansmitter.
Any modifications not expressly approved in writing by
Standard Communications to this equipment may void
compliance with the appropriate regulatory body and may
void the users authority to operate the equipment.
This devise is only an aid to navigation. Performance is
affected by many factors including environmental conditions
and inappropriate handling. It is the operators responsibility
to employ well informed judgement.
FCC NOTIFICATION
Note: This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to Part
15 of the FCC Rules and Canadian ICES-003. These limits are
designed to provide reasonable protection against harmful
interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications.
However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference
by one or more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circut different
from that to which the receiver is connected
• Consult the dealer or an experienced radio/TV technician
for help.
PAG E 
Any person in Australia operating a VHF Marine Radio should
possess at least a Marine Radio Operators VHF Certificate of
Proficiency (MROVCP). Alternatively, operators may choose
to obtain a Marine Radio Operators Certificate of Proficiency
(MROCP), which covers the operation of both VHF and MF/
HF equipment.
Many technical colleges and marine organisations offer
courses leading to examination for the MROVCP and MROCP
although such courses are not compulsory. Persons wishing
to obtain the MROVCP or MROCP should first purchase a
copy of the Maritime Radio Operator Handbook which is
essential reading for every boat owner in Australia.
The Australian Maritime College (AMC) provides the
marine examination and certificate service on behalf of
the ACA. The AMC can provide the details of organisations
and individuals offering courses and or conducting exams.
For further information visit: www.amc.edu.au
INTERNATIONAL CUSTOMERS
Local requirements will vary throughout the world with
regard to operator qualification, DSC registration and
MMSI allocations.
RADIO LICENCES
Ship Station license
When your craft is equipped with a VHF Marine transceiver,
you must have a  current radio station licence before using
the transceiver. It is unlawful to operate a ship station
which is not licensed.
Inquire through your dealer or the appropriate government
agency for a ship-Radiotelephone license. This license
includes the call sign which is your craft’s identification
for radio.
INSTRUCTION MANUAL
GX600D
contents
Safety Information. . . . . . . . . . . . . . . . . . . . . . 2
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
OPERATOR QUALIFICATIONS. . . . . . . . . . . . . . . . . . 2
Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
restrictions of use . . . . . . . . . . . . . . . . . . . . . . 2
GPS Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Connecting a gps receiver. . . . . . . . . . . . . . . 16
FEATURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Optional RM600D Remote Unit. . . . . . . . . . . . 17
Digital selective calling. . . . . . . . . . . . . . . . . . 4
installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Marine Mobile Service Identity. . . . . . . . . . . . 4
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . 19
Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Special Purpose Frequencies. . . . . . . . . . . . . . 20
Weather Channels. . . . . . . . . . . . . . . . . . . . . 20
USA Frequency Chart. . . . . . . . . . . . . . . . . . . 21
Canadian Frequency Chart . . . . . . . . . . . . . . 22
International Charts. . . . . . . . . . . . . . . . . . . . 23
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Digital Selective Calling (DSC). . . . . . . . . . . . . 9
Configuration menu. . . . . . . . . . . . . . . . . . . . 13
Menu Options. . . . . . . . . . . . . . . . . . . . . . . . 14
Call Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
restrictions of use
European Telecommunications Standard Institute (ESTI) has
stipulated the specific requirements (EN 301 025-1/2/3)
for marine radio with class D DSC feature. For use on nonSOLAS vessels or vessels on inland waterways.
WarrAnty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
very latest manufacturing techniques ensure a consistently
high quality is maintained resulting in a communications
system of extreme reliability and performance.
Please read this manual thoroughly to ensure you get the
best from the GX600D’s features.
This radio is intended for use in European countries: DK, FI,
FR, DE, GR, IE, IT, MT, NL, PT, ES, SE, GB, IS, NO and TR.
FEATURES
• Compact Waterproof Design
• SelectableInternational, USA, and Canadian Channel Sets
INTRODUCTION
• GPS position display when connected to a GPS
Congratulations. You have just purchased one of the most
technically advanced VHF Marine Radios in the world.
• Fully Compliant Class ‘D’ Digital Selective Calling
The GME GX600D is a VHF FM Radio designed to operate
in the 156 - 163 MHz marine band.
• Selectable USA Weather Channels
The GX600D has a number of enhanced features including
fully user programmable Channel Scanning, Dual Watch and
Triple Watch functions, a programmable ‘Instant’ channel
memory and tri-colour display lighting. In addition it
incorporates Digital Selective Calling and supports position
reporting when connected to a GPS receiver.
With its compact size and waterproof design it can easily be
installed into almost any panel mounting location in your fly
bridge or cabin.
• Separate DSC Receiver
• D
 ual Watch and Triple Watch with Programmable
Priority Channel.
• 20 Private Channels available
• Programmable Channel Scanning
• Selectable Power 25/1 Watt
• Working Channel Memory
• Alphanumeric Microphone for DSC control
• Adjustable Digital Squelch setting
The GX600D is totally designed and manufactured at our
factory in Gladesville, Australia. Precision robots and the
GX600D
INSTRUCTION MANUAL
PAGE 
Digital Selective Calling (DSC)
The Digital Selective Calling (DSC) feature on your GX600D
uses preformatted digital data messages instead of voice to
transmit urgent or important information to another radio.
DSC alerts all radios within range to a Distress message
even when a listening watch is not being maintained.
This increases the chances of your signal being heard.
DSC is part of the Global Maritime Distress and Safety
System (GMDSS) which is expected to eventually replace
listening watches on distress frequencies and will be used to
announce all routine and urgent maritime safety information
broadcasts.
DSC and GPS
DSC operation is enhanced by the addition of a GPS receiver
or chartplotter connected to your GX600D.  
When a GPS is connected, your distress call can
automatically include your current position and time, while a
chartplotter will allow you to display the position of another
vessel. If a GPS is not connected, DSC calls can still be sent
and received to alert the operator of another vessel for
subsequent voice communication.
Marine Mobile Service Identity
(MMSI)
A MMSI is a 9-digit number used to identify a Radio that is
capable of using DSC. The number is used to selectively call
other vessels.  
To setup and use the DSC feature on your radio:
Please refer to the ‘Digital Selective Calling’ section on
page 8 of this manual
Note: You can still receive Distress calls without a
user MMSI.
User MMSI
To use the DSC feature you must be registered with the
appropriate licensing authority in your country (AMSA in
Australia) who will issue you with your unique User MMSI
number. You can then enter this into your GX600D to enable
DSC operation. Having a registered User MMSI means you
can be identified much quicker in an emergency. If you are
not sure whom to contact , consult your GME dealer.
Your GX600D is shipped from the factory without a User
MMSI number.  It is up to the user to obtain a valid MMSI
from the appropriate licensing authority and enter the MMSI
into the radio to enable DSC operation.  
Group MMSI
The Group MMSI is used for DSC Group Calls. A Group Call
provides a method for all vessels with a common interest
(eg: a yacht club or a fishing fleet) to be contacted with
PAG E 
one DSC call. Group MMSI’s are usually issued by a club
or organisation for use by members participating in group
activities (such as yacht racing etc).
RANGE
The range of VHF transmissions depends on antenna
height, transmitter power and the terrain over which
the signals pass. Ship to ship communications should
be possible over at least 8 nautical miles and up to
about 27 nautical miles. Ship to shore ranges will
often be greater due to the increased height of the
shore antenna and communications of 25 to 50
nautical miles are possible.
VOLUME ON/OFF
Rotate the Volume control clockwise past the ‘click’ to turn
the GX600D on. Your user MMSI is displayed momentarily
at switch-on. While receiving a signal, continue to rotate
clockwise to increase the sound in the speaker. Rotate the
control fully counterclockwise past the ‘click’ to turn the
GX600D Off.
Note: At minimum volume setting there is still sufficient
volume to be heard in a quiet cabin environment.
CHANNEL SELECTION
Standard Marine Channels
Briefly press the key to step upwards one channel or the
key to step downwards one channel. A high beep will be
heard at each press. The or keys are also duplicated on
the front of the microphone.
Press and hold the or keys for 1.5 seconds to scroll
quickly upwards or downwards through the channels at
a rate of 10 channels per second. When the key is released
channel scrolling stops.
Weather Channels
The US weather channels are available only when the
USA Channel Set has been selected. When available,
weather channels are numbered 01 – 10 and are inserted
into the normal channel sequence below marine channel
01. They are selected in the usual way using the or
keys. Weather channels are identified by the WX icon on the
display.
Private Channels
Up to 20 Private channels can be programmed into the
GX600D for organisations that have been officially allocated
specific frequencies. Private channels are programmed on
application to your GME branch office or dealer. All requests
INSTRUCTION MANUAL
GX600D
OPERATION
Display
CONTROLS
Transmit
Indicator
Speaker
Channel DownChannel UpLCD Display
Busy
Dual Watch
Indicator Indicator
Triple Watch Indicator
Scan Memory
Display
Matrix
Volume
Low
Power
Channel
Display
Scan
Microphone
Channel 16
Channel A
Memory
Intercom
Hi/Low
Power
Dual Watch/
Triple Watch
for private channel programming must be supported by
documentation of the appropriate regulatory body in your
country.
If Private channels have been installed they will appear as
A0 – A9 and B0 – B9 above CH 88.
SQUELCH
To open the squelch:
Briefly press the SQL key. A low beep will be heard and the
squelch will open. Briefly press the SQL key again to close
the squelch. A high beep will be heard and the squelch will
be restored to its preset level.
Setting the Squelch Preset Level:
The preset squelch level can be adjusted to suit local
conditions. If you are in an electrically noisy location or
unwanted weak signals keep opening the squelch, you
can adjust the squelch setting so that the GX600D
remains quiet. Note that increasing the preset squelch
level will mean that stronger signals will be required to
overcome the squelch and may result in missed calls
from weaker signals.
The best setting is the minimum one required to keep the
receiver quiet.
To enter the Squelch setting mode:
Press and hold the SQL key for 1.5 seconds until a high
beep is heard. The present squelch setting will be displayed
in digits from -1 to -9 with -1 being minimum and -9 being
maximum squelch. The default setting is -2. While in this
GX600D
Squelch
Key Lock
Microphone
Push toTalk
Keylock key
DSC Distress
Channel
Extender
Up key
Down key
Call
Alphanumeric
Keypad
Menu/Enter Key
Clear key
mode, briefly press the or keys to increase or decrease
the Squelch level respectively as required. Press the SQL key
again to exit the Squelch setting mode or wait 5 seconds
and it will exit automatically. A low beep will be heard.
Keylock
key on the
To lock the keypad press and hold the
microphone. A high beep will be heard and the
symbol will be displayed. Press and hold the
key
again to cancel the keylock function.
While keylock is enabled, only the PTT,
, SQL,
16 and DISTRESS keys are accessible. All other keys
are locked.
Pressing 16 will cancel the keylock and revert to Channel
16 on high power.
Pressing DISTRESS will cancel the keylock and activate
the Distress menu.
TRANSMITTING
To Transmit:
Press the Push to Talk (PTT) switch on the microphone.
Hold the microphone about 5 - 8 cm from your face and
speak at a normal voice level. The microphone is quite
sensitive so it is not necessary to raise your voice or shout.
Release the PTT when you have finished talking.
Note: PTT transmissions are disabled on Channel 70.
INSTRUCTION MANUAL
PAGE 
Time-out Timer
power should be set to 25 Watts. For local transmissions a
1 Watt setting will conserve power and reduce interference
to nearby radios. The default setting on most channels
is 25 Watts.
Excessive transmission time is controlled by a time-out
timer. If the PTT is held for more than 5 minutes, the
transmitter will be temporarily disabled to prevent
accidental jamming of the channel frequency. Ten seconds
before the time out occurs, the ‘TX’ icon will flash and a
low warning beep will sound to notify you of the impending
timeout. Once the timeout occurs, both the backlight and
the ‘TX’ icon will flash and another low warning beep will
be heard. At this time the transmitter is disabled.
Press and hold the 25/1W key. A high beep indicates High
power is selected while a low beep indicates Low power is
selected. When Low power is selected ‘LO’ is displayed.
To reset the timer and re-enable the transmitter:
USA Channel set
Release the PTT switch and wait 10 seconds. During this
time the radio will display ‘TX INHIBITED FOR 10 SECS’.
If Channel 13 or 67 is selected the output power defaults
to 1W. Where operation of 25Watts is allowed the high
power override is obtained by momentarily pressing the
25W/1W button while transmitting. If the microphone PTT
switch is released the radio automatically returns to the
1Watt setting.
Note. Even if the PTT switch is released during the 10
second warning period, the PTT will still be inhibited for
10 seconds after the PTT is released.
CHANNEL 16
Briefly press the 16 key to switch straight to Channel 16.
All previous control settings (such as scanning or low
transmitter power) will be cancelled and the radio will
be restored to normal operation with high transmit
power selected.
SELECTING CHANNEL SETS
The GX600D is programmed with three Channel Sets International, USA and Canada. These Channel Sets support
various channel and frequency allocations for other parts of
the world. Once you have selected the required Channel Set
for your location, you should not need to change it again
unless you have moved to another country.
When using the GX600D in Australia and Europe:
The International Channel Set must be selected.
In America use the USA channel set.
In Canada use the CAN channel set.
Refer to the channel charts in this document.
To switch between High and Low transmitter power:
Note: The radio always defaults to High power when
Channel 16 is selected.
• S electing Channel 16 using the 16 key will reset ALL
channels to High power.
• S electing Channel 16 using the or keys resets only
channel 16 to High Power but retains any Low power
setting on the other channels.
• T o specifically use Low power on Channel 16, select
channel 16 then hold the 25/1W key to select low
power. ‘LO’ will be displayed.
WORKING CHANNEL MEMORY
The GX600D has a dedicated ‘working channel’ memory
called Channel A which allows you to store and recall an
often-used working channel. The memory is accessed using
the CHAN A key. Channel A is also used as the priority
channel for the Triple Watch function (see page 7).
To Store a Frequency into Channel A:
To change the Channel Set:
Please refer to the Configuration Menu on page 13 of
this manual.
DISPLAY BACKLIGHTING
Select the required channel using the or keys,
then press and hold the CHAN A key for 1.5 seconds.
The channel number will flash then a high beep will
be heard as the channel is stored.
The LCD display is backlit for easy viewing at night. Both
the brightness and the colour of the backlighting can be
adjusted. Backlight settings are accessed through the menu.
For details on setting the Display brightness, colour or
contrast please refer to the Configuration Menu on page 13
of this manual.
To Recall Channel A:
TRANSMIT POWER
The Dual Watch function is a 2 channel scan feature where
the GX600D switches between Channel 16 and any other
selected channel. This allows you to monitor a working
The GX600D has both High (25 Watt) and Low (1 Watt)
transmitter power settings. For long range transmissions the
PAG E 
Briefly press the CHAN A key to switch immediately to the
channel stored in that memory. If the radio was scanning
the scan will be cancelled.
DUAL WATCH KEY (DW)
INSTRUCTION MANUAL
GX600D
or club channel while still being able to receive important
broadcasts on Channel 16.
To use the Dual Watch function:
Select your preferred working channel - either with the
or keys or by selecting the CHAN A memory - then
briefly press the DW key. A high beep will be heard and
both ‘DW’ and ‘CH16’ will appear on the display to indicate
you are Dual Watching the selected channel with Channel
16. The GX600D will now monitor the selected channel
AND Channel 16 by alternating equally between them.
During this time the channel display will remain on the
selected channel.
To cancel Dual Watching:
Briefly press the DW key again.
Dual Watch Features
If a signal appears on Channel 16:
The radio will switch immediately to Channel 16 and ‘16’
will be displayed. At this point the selected channel is no
longer being monitored because Channel 16 has priority.
During this time the PTT may be pressed for normal
transmissions on Channel 16. Once channel 16 has become
inactive for 5 seconds the Dual Watch function will resume.
If a signal appears on the selected channel:
Scanning will pause on the selected channel BUT Channel 16
will continue to be monitored every 2 seconds. During this
time the PTT may be pressed for normal transmissions on the
selected channel (note that monitoring of Channel 16 ceases
while transmitting). Once the selected channel has become
inactive for 5 seconds the Dual Watch function will resume.
To Transmit on the selected Channel
while Dual Watching:
Simply press the PTT. The Dual Watch function will pause
on the selected channel during the transmission and remain
paused until 5 seconds after all activity has ceased on the
channel. Dual Watch will then resume.
To Transmit on Channel 16 while Dual Watching:
Press the 16 key to select Channel 16. Dual watch will be
cancelled and the radio will switch straight to Channel 16.
Now press the PTT and transmit in the usual way.
When your conversation has ended, press the DW key
to resume Dual Watching.
To change the selected Channel while Dual Watching:
Simply select another channel either using the or keys
or Dual Watching continues on the newly selected channel.
TRIPLE WATCH KEY (TW)
The Triple Watch function is an extension of the Dual
GX600D
Watch feature. It allows the GX600D to monitor Channel
16, a selected channel AND a priority channel. Each
channel is scanned equally for signals with priority given
first to CH 16, then the Priority channel and lastly the
selected channel.
When Triple Watch is selected the ‘TW’ icon is displayed
along with Channel 16, the Selector Channel and the
Priority Channel. The ‘Priority’ Channel is the one stored
in the CHAN A memory.
To use the Triple Watch mode:
First program your priority channel (the default priority
channel is 9) into the CHAN A memory, then select your
preferred working channel using the or keys.
Now press and hold the TW key for 1.5 seconds until
a high beep is heard. ‘TW’ and the selected channel
will be displayed along with CH16 and the Priority
Channel number.
To change the selected channel at any time:
Press the
or
keys.
To cancel Triple Watch
Briefly press the TW key to switch to Dual Watch mode.
A high beep will be heard.
OR
Press and hold the TW key to return to normal operation.
A low beep will be heard.
Triple Watch Features
If a signal appears on Channel 16:
The radio will switch immediately to Channel 16 and
‘CH 16’ will be displayed. At this point the selected
channel and the Priority channel are no longer being
monitored because Channel 16 has highest priority. During
this time the PTT may be pressed for normal transmissions
on Channel 16. Once Channel 16 has become inactive for
5 seconds the Triple Watch function will resume.
If a signal appears on the Priority channel:
Scanning will pause on the Priority channel BUT Channel 16
will continue to be monitored every 2 seconds (the selected
channel is not monitored). During this time the PTT may
be pressed for normal transmissions on the Priority channel
(monitoring of Channel 16 ceases while transmitting). Once
the Priority channel has become inactive for 5 seconds
Triple Watch will resume.
If a signal appears on the selected channel:
Scanning will pause on the selected channel BUT channel
16 and the Priority channel will continue to be monitored
every 2 seconds. During this time the PTT may be
pressed for normal transmissions on the selected channel
(monitoring of channel 16 and the Priority channel ceases
INSTRUCTION MANUAL
PAGE 
while transmitting). Once the selected channel has become
inactive for 5 seconds the Triple Watch will resume.
To Transmit on the selected Channel
while Triple Watching:
Briefly press the SCAN key again. The radio will return to
the last selected channel.
Scanning Features
Simply press the PTT. The Triple Watch function will pause
during the transmission and remain paused until 5 seconds
after all activity has ceased on the channel. Triple Watch will
then resume.
To Transmit on the Priority channel
while Triple Watching:
Briefly press the CHAN A key. The Priority channel will
then become the selected channel. Now press the PTT
and transmit in the usual way. When your conversation
has ended, re-select your selected channel.
To Transmit on Channel 16 while Triple Watching:
Press the 16 key. Triple Watch will be cancelled and
the radio will switch straight to Channel 16. Now press the
PTT and transmit in the usual way. When your conversation
has ended, press and hold the TW key to resume Triple
Watching.
SCANNING
The Scan function allows the GX600D to scan through
a series of user selected channels looking for activity.
Scanning is done in an ascending sequence at a rate
of 10 channels per second.
Channels can be selected and stored for scanning from
any of the available channels, including weather channels
(if the USA channel set is selected) and private channels
(if they are enabled).
Note: The transmitter is disabled while scanning. If the PTT
is pressed, a low beep will be heard and the PTT is ignored.
If the scan is paused on a busy channel
and you wish to remain on that channel:
Briefly press the SCAN key. Scanning will be cancelled and
the radio will remain on that channel. To resume scanning,
briefly press the SCAN key again.
If the scan is paused on a busy channel and you
wish to skip over that channel:
Briefly press the or keys. Scanning will resume with
the next channel in sequence. As an alternative, pressing
the SCAN key twice will give the same result.
If the scan is paused on a busy channel
and you wish to transmit on that channel:
Simply press the PTT switch. Scanning will be cancelled
and the radio will remain on that channel.
Note: if the PTT is pressed at any other time while
scanning, a low beep will be heard and the PTT will
be ignored.
To switch immediately to Channel 16:
Briefly press the 16 key. Channel 16 will be selected,
scanning will be cancelled and the radio will be restored
to normal operation with high transmitter power selected.
To switch immediately to the stored working
channel (CHAN A):
Briefly press the CHAN A key. Scanning will be cancelled
and the radio will switch to the channel stored in the
CHAN A memory.
Scanning Notes:
To store channels for scanning:
Select the required channel using the or keys, then
press and hold the SCAN key for 1.5 seconds. A high
beep with be heard and ‘M’ will appear next to the
channel number.
Repeat the process to remove a previously stored channel
from the scan list. When a channel is removed a low beep is
heard and ‘M’ disappears from the display on that channel.
To Begin Scanning:
Briefly press the SCAN key. The GX600D will scan upwards
through the stored channels at 10 channels per second and
the display will show rapidly changing channel numbers.
If a signal is located, scanning will pause on that channel
and will remain for 5 seconds after the signal has gone.
Scanning will then resume.
PAG E 
To stop the scan:
1.  Each channel set has its own independent scan memory.
E.g. Scan channels stored under the International
channel do not affect those stored under the USA
channel set.
2.  A minimum of 2 channels is required in the scan memory
before scanning is allowed. If there are less that 2
channels, pressing the Scan key will give a low beep
and the scan will be ignored.
3.  The following keys/functions are disabled while
scanning:
•  PTT
•  25/1W
•  Scan memory storage
INSTRUCTION MANUAL
GX600D
Scanning with Dual Watch:
TO MAKE A DISTRESS CALL:
If Dual Watch is selected while scanning, Channel 16
will be inserted into the scan every fifth channel
1.  Open the Red DISTRESS cover.
Scanning with Triple Watch:
If Triple Watch is selected while scanning, Channel 16 and
the priority channel (stored in the CHAN A memory) will
both be inserted into the scan every fifth channel.
DIGITAL SELECTIVE CALLING (DSC)
Digital Selective Calling (DSC) uses digital data to provide
automatic distress alerting and position reporting between
DSC equipped radios. Using preset functions built in to
the radio, you can make a range of automated digital calls
including Distress Calls, All Ships and Group Calls as well
as calls to individual radios. With the addition of a GPS you
can also send your position to another vessel or request
their position. DSC has a number of advantages over
voice calls including the ability to handle increased radio
traffic and the automatic identification of your ship and its
position in the event of an emergency.
DSC is part of the Global Maritime Distress and Safety
System (GMDSS) and will eventually replace audible
listening-watches on distress frequencies. It will also be
used to announce routine and urgent maritime safety
information broadcasts to other ships in the area.
The GX600D has two receivers, one of which is dedicated
to CH70. Therefore, regardless of which channel you are
operating on, the GX600D will not miss a DSC call if in
receiving range.
2.  Briefly press the DISTRESS key. The display shows the
‘Nature of Distress’ Menu list.
3.  Use the or keys to select the nature of the Distress.
The list includes: Undefined, Fire, Flooding, Collision,
Grounding, Listing, Sinking, Disabled, Abandoning,
Piracy and Man Overboard.
4.  With the correct Distress item selected, press and hold
the DISTRESS key for 5 seconds. The display will flash
and the radio will count from 5 down to 1, beeping at
each count.
Note: To cancel the Distress call, release the DISTRESS key
before the countdown is completed. The radio will return to
normal operation on CH16.
5.  When the countdown is complete, the DISTRESS call will
be sent on Channel 70 (whether CH70 is busy or not).
After the Distress call is sent, the radio switches to CH16
and the display shows ‘DISTRESS’ and ‘Wait Ack …’ to
indicate it is now in the Distress mode and is waiting for
an acknowledgement from another radio.
DISTRESS:
WAIT ACK . . .
User MMSI
(Marine Mobile Service Identity)
While in Distress Call mode, the GX600D is set on CH16
and the user cannot change channels. The keypad on the
microphone is disabled and all front panel keys except for
SQL are disabled. If the PTT is pressed, the radio transmits
on CH16 on HI power.
A User MMSI is a 9-digit number used to identify a DSC
capable Radio. The number is used to selectively call other
vessels and is issued by your local Maritime Authority
(AMSA in Australia).
If an acknowledgement is not received, the Distress call
will be resent at around 4 minute intervals (whether CH70
is busy or not) – for as long as the radio remains in the
Distress Call mode.
NOTE: Before you can use DSC, you must have entered
your User MMSI number into your GX600D. If you don’t yet
have a User MMSI, please register with your local Maritime
Authority who will then issue a unique MMSI number.
Please refer to the User MMSI section of the Configuration
Menu on page 13 of this manual for instructions on
entering your User MMSI.
Note: A Distress Call can also be resent immediately at any
time by holding the DISTRESS key again for 5 seconds.
The Distress call mode is cancelled when a DISTRESS
ACKNOWLEDGE is received or the 16 key is pressed.
The radio then returns to Normal operation on CH16.
Note: A Distress Acknowledge response is generally sent by
a coastal base station.
DISTRESS CALLS
RECEIVING A DISTRESS CALL
To make a Distress Call:
When a Distress Call is received:
Always use the Red DISTRESS button on the GX600D’s
front panel. To make any other DSC call, use the CALL
button on the microphone.
The GX600D switches to CH16 and generates an audible
Distress Alert Alarm.
GX600D
INSTRUCTION MANUAL
PAGE 
The radio’s display then alternates between the name and
position of the vessel in distress and the time and nature
of the emergency at 3 second intervals:
DISTRESS:
SIRIUS
S 45° 23.48’
E 151°21.14’
Name & Position
of Vessel
DISTRESS:
Listing
05:32 UTC
Nature of Distress
& Time
Press CLEAR to cancel the alarm but continue displaying
the emergency information.
Press CLEAR again to return to Normal operating mode
on CH16.
MAKING ALL OTHER DSC CALLS
All other DSC calls - apart from Distress calls - are made
using the CALL button on the microphone.
DSC MENU NAVIGATION
To access the DSC Call menu:
Press the CALL button on the microphone. The ‘CALL’ Menu
will be displayed providing a range of DSC call options.
To navigate the Call Menu:
2.  Select ‘Individual’ and press ENTER. The MMSI number
field will be displayed.
3. Enter the called vessel’s MMSI.
    You can either –
Enter the vessels MMSI directly using the keypad
OR
Press the key to retrieve the last called MMSI
OR
Press the key to select a vessel’s MMSI from the
Address Book.
4.  Select the channel to be used for voice communication
using the or keys, then press CALL.
Note: If you are calling a Coast Station you will not be
asked to select a channel. Instead the Coast Station will
decide the channel to be used.
5. You will be asked to confirm the call. Press CALL to
transmit the call.
CALL
> INDIVIDUAL

ALL SHIPS
GROUP
SEND CALL
 MSI:
Send CALL?
SIRIUS
CALL
SIRIUS:
Press the or keys to move up or down through the
available menu options.
Press ENTER to select the current menu selection.
Press CLEAR to quit the current menu selection.
Press CLEAR again to exit the ‘CALL’ Menu and return
to normal operation.
Select Chnl
Once the call has been sent, the radio will wait for an
acknowledgement. If an acknowledgement is received the
radio displays.
CALL FROM:
SIRIUS
ACKNOWLEDGE
Note: At any time in DSC mode, including Distress Calls,
press the 16 key to cancel DSC mode entirely and return
the radio to normal mode on HI power.
DSC CALL MENU OPTIONS
Individual Calls:
Use the ‘Individual Call’ option to alert a specific vessel that
you wish to communicate with them on a specified channel.
If the called vessel’s radio is on a different channel, their
radio will change to the channel you specify.
Note: To make an individual DSC call you must know the
MMSI of the vessel you are calling.
To make an Individual Call:
1.  Press the CALL button. The DSC ‘CALL’ Menu will
be displayed.
PAG E 1 0
Press CLEAR (or wait a further 5 seconds) for the radio
to return to Normal mode. You can now have normal voice
communications on the selected channel.
Notes:
If NO acknowledgement is received:
It is likely that the vessel you called is switched off or out of
range. If no response is received within 5 seconds the radio
displays:
CALLING . . .
SIRIUS
INSTRUCTION MANUAL
NO REPLY
GX600D
Press CLEAR (or wait a further 5 seconds) for the radio to
return to Normal mode.
If an Acknowledge is received but the other radio
is unable to comply:
This indicates the called vessel’s radio has received and
acknowledged your call, but could not change to the
requested channel. This could mean the called vessel’s radio
is configured for manual reply or is in a mode where the
operator does not want the channel to change.
The radio displays:
1.  Press the CALL button
2.  Select ‘GROUP’ and press the CALL button again. The
Group MMSI used is the one programmed into your
radio (see Configuration Menu).
3.  Select channel to be used for subsequent
communications then press CALL.
4.  Press CALL again to send the call.
The radio returns to Normal mode on the selected channel
as soon as the call has been sent.
CALL FROM:
SIRIUS
ACKNOWLEDGE
NOT COMPLY
Note: There is no DSC acknowledge to a Group call.
Press CLEAR (or wait a further 5 seconds) for radio to
return to Normal mode.
All-Ships Call
An All-Ships call is a DSC broadcast to alert all ships in
the area. It is the equivalent to sending a PAN-PAN or
SECURITE voice call. Since the call is to All Ships and not to
an individual vessel, a calling MMSI is not required. Ships
receiving an All-Ships call will change to CH16.
To make al All Ships call:
CALL
INDIVIDUAL
ALL SHIPS
> GROUP
CALL
GROUP
SELECT CHNL
CALLING . . .
GROUP
SEND CALL?
GROUP
Position Request
1. Press the CALL button
2. Select ‘ALL SHIPS’ and press ENTER.
3. Select ‘URGENCY’ or ‘SAFETY’ as appropriate and
press ENTER.
4. Press CALL to send the call
The radio returns to Normal mode on CH16 as soon as
the call has been sent.
Note: There is no DSC acknowledge to an All-Ships call.
CALL
INDIVIDUAL
> ALL SHIPS
GROUP
ALL SHIPS
> U
 RGENCY
SAFETY
CALLING . . .
ALL SHIPS
SEND CALL?
ALL SHIPS
A Position request is used to obtain the position of another
vessel. The other vessel’s position is displayed on your
radio’s LCD. If you have a chartplotter connected to the
GX600D, the position of the other vessel can also be
displayed on the chartplotter’s screen.
To make a Position Request:
1. Press the CALL button
2. Select ‘POS REQUEST’ then press the CALL button.
3. Enter the called vessel’s MMSI.
    You can either –
Enter the vessels MMSI directly using the keypad
OR
Press the key to retrieve the last called MMSI
OR
Press the key to select a vessel’s MMSI from the
Address Book.
4. Press CALL to send the call.
Group Call
A Group Call is used to contact all ships that have the same
Group MMSI. All ships receiving a Group call will change to
GX600D
the specified channel. For example this could be used
to alert all yachts in a race to announce a change in the
race conditions.
To make a Group Call:
The request has now been sent and the radio will wait
for a reply.
INSTRUCTION MANUAL
PAGE 11
CALL
ALL SHIPS
GROUP
> POS REQUEST
SEND CALL
MMSI:
CALL FROM:
SIRIUS
POSITION
_ _:_ _ UTC
CALLING . . .
SIRIUS
Press CLEAR (or wait 5 seconds) for the radio to return to
Normal mode.
Position Request Responses
If NO acknowledgement is received:
It is likely that the vessel you called is switched off or out
of range. If no response is received within 5 seconds the
radio displays:
The called radio cannot comply:
The called vessel’s radio has received your request, but could
not send it’s position. This could mean the called vessel’s
radio is configured for manual reply, or is in a mode where
position requests are denied (see ‘Auto Pos’ setting on page
15 in the Configuration Menu).
CALLING . . .
SIRIUS
CALLING . . .
SIRIUS
NO REPLY
NO REPLY
Press CLEAR or wait a further 5 seconds for radio to return
to Normal mode.
An acknowledgement is received:
The display will alternate between position and time as
shown below. The position is displayed on the LCD as
Lat/Long in Degrees, Minutes and Decimal Minutes. If a
Chartplotter is attached, the position is also sent to the
Chartplotter and appears on the Chartplotter’s display.
CALL FROM:
SIRIUS
POSITION
01:35 UTC
Displays time in UTC
CALL FROM:
SIRIUS
S _ _° _ _._ _’
E _ _ _° _ _. _ _’
Press CLEAR (or wait a further 5 seconds) for the radio to
return to Normal mode.
Position Send
‘Position Send’ is used to manually send YOUR position to
another vessel. For example, another ship may request your
position using voice communications. Instead of speaking
the latitude and longitude over a voice channel, you can
send your position via DSC which can then be displayed
on the other ship’s radio or directly onto their chartplotter’s
screen.
To send a ‘Position Send’ call:
CALL FROM:
SIRIUS
S 33° 49.30’
E 151° 07.15’
1. Press the CALL button
2. Select ‘POS SEND’ then press the CALL button.
Displays Position
Note: If the radio you are calling does not have a GPS
connected or the GPS signal is not valid, the GPS position
data will be invalid. In that case, the position used will be
the manually set position. If the manual position is has
not been set or hasn’t been updated within 23 hours, then
position data is sent as: ‘N 99`99 E 999’99’ to indicate
position data is invalid. When this is received on the
GX600D it will be displayed as:
3. Enter the called vessel’s MMSI.
    You can either –
Enter the vessels MMSI directly using the keypad
OR
Press the key to retrieve the last called MMSI
OR
Press the key to select a vessel’s MMSI from the
Address Book.
4. Press CALL to send the call.
The radio returns to Normal mode on the current channel
as soon as the call has been sent.
Note: There is no DSC acknowledgement of a ‘Position
Send’ call.
PAG E 1 2
INSTRUCTION MANUAL
GX600D
Press any key to cancel the alarm. The radio returns to
Normal mode on CH16.
CALL
INDIVIDUAL
POS REQUEST
> POS SEND
SEND CALL
MMSI:
Receiving a Group Call
When a Group Call is received, the GX600D changes to
the requested channel and generates an audible Group
Call alarm.
CALLING . . .
SIRIUS
The display shows:
group call:
sirius
Ch12
RECEIVING DSC CALLS
When a DSC call is received, the GX600D automatically
responds depending on the type of call. If a GPS is
connected to the caller’s radio and is receiving a valid signal
then their GPS time is used to display the time of the call on
your GX600D’s display.
Received calls are saved to the Call Log. Received DSC
Acknowledge calls are not saved in the call log.
Press any key to cancel the alarm. The radio returns to
Normal mode on the current channel.
Receiving a Position Request
When a Position Request is received, your GX600D
generates a DSC Position Reply message then displays
the following:
call from:
sirius
position REQ
Receiving an Individual Call
When an ‘Individual’ call is received, the GX600D changes
to the requested channel and generates an audible
‘Individual Call’ alarm. The display then shows:
call from:
sirius
Routine
Ch12
Press any key to clear the display. The radio returns to
Normal mode on the current channel.
Receiving a Position Send
Your GX600D automatically transmits a DSC acknowledge
back to the caller.
Note: If the GX600D is configured for Manual TX the radio
will not change channel and the acknowledge call will
‘Unable to comply’.
To cancel the alarm, press any key. The radio returns to
‘Normal’ mode on the current channel.
When a Position Send is received, your GX600D displays
alternating information every 3 seconds to indicate the
GPS time and the position of the calling vessel:
CALL FROM:
SIRIUS
POSITION
01:35 UTC
GPS Time
Receiving an All Ships Call
When an All Ships call is received, the GX600D switches to
CH16 and generates an audible All-Ships Urgency/Safety
alarm. The Display shows:
All Ships:
sirius
urgency
GX600D
CALL FROM:
SIRIUS
S 33° 49.30’
E 151° 07.15’
Position of
Calling Vessel
If a chartplotter is connected to your GX600D, the position
of the calling ship is displayed on the chartplotter.
Press any key to clear the display. The radio returns to
Normal mode on the current channel.
INSTRUCTION MANUAL
PAGE 13
To Edit Items in the Address Book:
CONFIGURATION MENU
The GX600D is easily configured using a menu system.
Use the keys on the microphone to advance through the
menus and enter information.
To access and navigate the Menus:
Press MENU to access the Main Menu. A list of menu
options is displayed. The ‘>’ symbol indicates the currently
selected menu option.
Press the or keys to move up or down through the
available menu options.
1.  Select ‘EDIT’ and press ENTER
2.  Select the name you wish to Edit and press ENTER
3.  Press the or keys to move the cursor left or right
through the characters. The character at the cursor
position will flash.
     a) Press CLEAR to erase the character at the cursor
position.
     b) Press another key on the keypad to replace the
character at the cursor position.
Press ENTER to select the current menu selection.
4.  Press ENTER to advance to the MMSI
Press CLEAR to quit the current menu selection.
5.  Repeat Step 3 to edit the MMSI. Press ENTER
when complete. ‘SAVING…’ will be displayed as the
new Address is stored. The radio then returns to the
‘ADDR’ menu.
To exit the Main Menu:
Press CLEAR repeatedly until the menu disappears from
the display.
MENU OPTIONS
1. Select ‘ERASE’ and press ENTER
Address Book
The address book is used to store the names and user
MMSI’s of other vessels. This makes it easy to identify
and make DSC calls to those stations.
To select the Address Book:
2. To erase an individual Address, select ‘ONE-BY-ONE’
and press ENTER.
3. Select the address to be erased and press ENTER.
You will be asked to confirm your selection.
4. Press ENTER to confirm or CLEAR to cancel.
From the Main Menu, select ‘ADDR BOOK’ and
press ENTER.
Note: To erase ALL addresses, select the ALL ENTRIES
option at step 2.
To Add items to the Address Book:
Call Log
1.  Select ‘ADD’ and press ENTER
2.  Enter a suitable name using the Alpha/Numeric
keypad on the microphone (11 characters max.)
then press ENTER
3.  Enter the ships MMSI number using the Alpha/Numeric
keypad then press ENTER. ‘SAVING…’ will be displayed
as the Address is stored. The radio then returns to the
‘ADDR’ menu.
NOTE: To correct an error while entering a name or MMSI
     a) Press the or keys to move the cursor left or right
through the characters. The character at the cursor
position will flash
     b) Press CLEAR to erase the character at the
cursor position.
     c) Press another key on the keypad to replace the
character at the cursor position.
To enter additional names and MMSI’s, repeat the steps
1 - 3 above.
PAG E 1 4
To Erase items from the Address Book:
The Call Log keeps track of the DSC calls you have received.
To access the call log:
Select ‘CALL LOG’ from the Main Menu and press ENTER.
DSC calls are logged as either ‘Routine’ or ‘Distress’. Up to
10 calls can be logged in each category. Logged calls are
numbered from 1 – 10 with call 1 being the most recent.
If more than 10 calls have been logged, the oldest call is
discarded when a new call is logged.
To view the call logs:
Select either ‘ROUTINE’ or ‘DISTRESS’ from the Call Log
Menu and press ENTER. The most recently logged call in
the selected category will be displayed as ‘RECEIVED: 1’,
along with the MMSI of the caller and details of the call.
If the caller is in your address book, their name will be
displayed in place of the MMSI.
Press the
or
keys to view additional logged calls.
While displaying the details of a logged call, press the
MENU key to access additional menu functions relating
to the displayed call.
INSTRUCTION MANUAL
GX600D
Call
SETUP
Select ‘CALL’ to call the station listed in the call log. Use
the or keys to select the required channel if prompted
then press ENTER. Press ENTER again to send the call.
Key Beep
Add Address
Select ‘ADD ADDR’ to add the listed caller to your Address
Book. You will be prompted to enter a name for this entry.
Enter the name using the Alpha Numeric keypad then press
ENTER. The MMSI is automatically transferred from the call
list to the Address entry page. Press ENTER to accept the
MMSI. ‘Saving …’ will be display as the address is stored.
Erase
Select this option to erase the displayed entry from
the Call Log.
Alarm Beep
Select ‘ALARM BEEP’ and press ENTER to change the
volume of the beeps when an Alarm sounds. While in
the ‘ALARM BEEP’ Menu use the
or keys to change
the Alarm volume setting to ‘HI’, ‘MED’ or ‘LOW’.
Press ENTER to accept the selection and return to the
‘SETUP’ Menu.
Auto Change
When finished, press CLEAR to return to the ‘Call
Log’ menu.
Erase all Logs
To erase all logged calls, select ‘ERASE LOGS’ from the
‘Call Log’ menu. You will be prompted for confirmation.
Note: This option will erase ALL call logs from both the
Routine and the Distress categories. Press ENTER to
proceed or CLEAR to cancel.
DISPLAY
Select the ‘DISPLAY’ option from the Main Menu to
configure the display.
Backlight
To change the display’s backlighting, select ‘BACKLIGHT’
and press ENTER. Use the or keys to select from
‘OFF’, ‘DIM’ or ‘BRIGHT’. The display backlighting changes
immediately with each selection. Press ENTER to accept
the selection and return to the ‘Display’ Menu.
Colour
To change the display colour select ‘COLOUR’ and press
ENTER. Use the or keys to select from ‘RED’,
‘GREEN’ or ‘ORANGE’. The display colour changes
immediately with each selection. Press ENTER to accept
the selection and return to the ‘Display’ Menu.
Contrast
Select ‘CONTRAST’ to change the display contrast.
Changing the contrast can improve visibility in changing
light or at different viewing angles. Use the or keys to
select a contrast level between -10 and 10. The default level
is 1. The maximum contrast setting is 10. Press ENTER to
return to the ‘SETUP’ menu
GX600D
Select ‘KEY BEEP’ and press ENTER to change the volume
of the beeps when keys are pressed. While in the ‘KEY
BEEP’ Menu use the or keys to change the Beep
volume setting to ‘HI’, ‘MED’, ‘LOW’ or ‘OFF’. Press ENTER
to accept the selection and return to the ‘SETUP’ Menu.
Select ‘AUTO CHANGE’ and press ENTER to select
whether your radio will change channels when requested
by another vessel’s DSC call. Select ‘ON’ to allow your radio
to change channel when requested. Select ‘OFF’ to prevent
your radio from changing channel. Press ENTER to accept
the selection and return to the ‘SETUP’ Menu
Auto Pos.
Select ‘AUTO POS’ and press ENTER to select whether
your radio will automatically send its GPS position to
another vessel whenever a Position Request is received.
Select ‘ON’ to allow your position to be sent automatically
when a vessel sends you a Position Request. Select ‘OFF’ to
disable automatic position sending. Press ENTER to accept
the selection and return to the ‘SETUP’ Menu
UIC
Accesses the USA / International / Canadian channel set
selection. Use the
or keys to select from ‘CAN’ , ‘USA’
or ‘INTL’. Press ENTER to accept the selection and return to
normal operation or press CLEAR to discard any changes
and exit back to the ‘SETUP’ menu.
When the Channel Set is changed the GX600D will switch
to CH 16.
Note: When the USA Channel Set is selected, weather
channels are accessible below Channel 01.
GPS SETUP
Position
Lets you manually set the latitude and longitude of your
vessel’s location. The position must be entered in Degrees,
Minutes and decimal Minutes (DMM).
INSTRUCTION MANUAL
PAGE 15
To enter your position :
Select ‘POSITION’ from the GPS Menu.
NOTE: There is no limit on the number of times you can
change the Group MMSI.
Entering the Latitude:
To enter the Group MMSI
Use the or keys to select ‘N’ (North) or ‘S’ (South)
then press ENTER.
Enter the Latitude using the numerical keypad. To correct
an error, use the or keys to change the cursor position
then re-enter the number at that location. Press ENTER
when done.
Entering the Longitude:
Use the or
press ENTER.
1.  Select ‘GROUP MMSI’ from the Main Menu
2.  Enter the ‘GROUP MMSI’ number using the alpha
numeric keypad. To correct an error, use the or keys
to change the cursor position then re-enter the number
at that location.
3.  Press ENTER when finished to the Main Menu
USER MMSI
keys to select E (East) or W (West) then
Enter the Longitude using the numerical keypad. To correct
an error, use the or keys to change the cursor position
then re-enter the number at that location.
Press ENTER when done. The location will be stored.
UTC Time
Lets you manually set the time in UTC (Greenwich Mean
Time). The time is entered as Hours: Minutes : Seconds
in 24 hour time format.
To enter the time in UTC:
1.  Select ‘UTC TIME’ from the ‘GPS SETUP’ Menu. The
Hours cursor will be flashing.
The User MMSI is unique to each radio and must be entered
to enable normal DSC operation - except for Distress calls
which can be received without a user MMSI.
The GX600D is shipped from the factory with the user
MMSI ‘un-programmed’. It is up to the user to obtain a
valid MMSI from the appropriate licensing authority and
enter the MMSI into the radio to enable DSC operation.
Important: It is a requirement of the regulations that the
User MMSI can only be entered ONCE. If there is a need to
change the MMSI more than once you will need to contact
your authorized GME service centre for advice. For this
reason take special care when entering your User MMSI
number to ensure it is entered correctly before saving it.
2.  Use the or keys to select the hours then press
ENTER. The Minutes cursor will flash.
To enter the User MMSI:
3.  Use the or keys to select the minutes then press
ENTER. The Seconds cursor will flash.
2.  Enter the 9 digit User MMSI number issued to you by
your local authority using the alpha numeric keypad.
If you make an error, use the or keys to move
the cursor position to the incorrect number then
re-enter the number at that location.
4.  Use the or
press ENTER.
keys to set the seconds then
The radio returns to the ‘SETUP’ Menu.
Note: The position and time are erased after 23 hours
or when the radio is switched off.
Time Offset
Lets you set the time offset between UTC time and your
local time. A list of Time offsets is in the back of this
manual.
To set the Time Offset:
1.  Select ‘USER MMSI’ from the Main Menu.
3.  Once you are certain the number has been entered
correctly, press ENTER to store it and return to the
Main Menu.
CONNECTING A GPS RECEIVER
You can connect a GPS receiver or GPS Plotter to your
GX600D to provide your radio with GPS position and
time reporting.
NMEA 0183 DATA
1.  Select ‘TIME OFFSET’.
2.  Use the or keys to set the time offset in half
hour segments.
3.  Press ENTER to return to the ‘GPS SETUP’ Menu.
The GX600D recognises the following standard NMEA
sentences. You may need to select NMEA 0183 Input/
Output using the interface settings on your GPS.
GROUP MMSI
•  NMEA Input from GPS: GPSGLL, GPGGA, GPRMC,
GPGNS (v2.x).
A Group Call provides a method for multiple vessels with a
common interest to be contacted with one DSC call.
•  NMEA Output to plotter: GPDSC (v2.x). GPDSE (v3.x).
PAG E 1 6
INSTRUCTION MANUAL
GX600D
NMEA WIRING
INSTALLATION
Yellow
Blue
NMEA Out
NMEA In
Black Common (Gnd)
Optional RM600D Remote Unit
The Optional RM600D remote unit provides a remote
head connection to allow operation of the GX600D
from a flybridge or second station on your vessel.
The RM600D conveniently plugs into the GX600D using
an interconnecting cable and no additional interface
wiring is required.
The RM600D is supplied with a DC lead for connection
to a 12 Volt power source and 5 meters of terminated
interconnecting cable. Additional terminated cables are
available in 5 and 10 meter lengths.
When connected, the RM600D can duplicate all functions
of the GX600D. In addition it includes an Intercom feature
that allows internal communications between the GX600D
and the RM600D.
The RM600D is supplied with a standard PTT microphone
which is interchangeable with the alphanumeric
microphone supplied with the GX600D. Because of the
additional functions accessible from the alphanumeric
microphone, master control is given to whichever device
has the alphanumeric microphone connected.
Before changing the microphones, both units should
be switched off.
Note: Only one alphanumeric microphone should be
connected to any GX600D/RM600D combination.
Intercom
To activate the Intercom feature, press the INT’COM key
from either unit. Press the PTT and talk in the usual way.
To cancel the Intercom, press the INT’COM key again.
Note: Pressing the 16 key or the Distress button also
cancels the Intercom function.
Panel Mounting
GX600D
Overhead Mounting
Upright Mounting
Flush Mounting (Optional MK600,
Note: Your GX600D is designed for connection to negative
earth electrical systems only.
Selecting a location
It is advisable to spend a little time selecting the best
location for your GX600D. The mounting bracket can be
rotated above, below or behind the radio enabling the radio
to be mounted in a wide range of locations. In addition,
using the optional flush mounting kits (MK600, MK001,
MK002) the GX600D can be mounted directly in a panel or
dashboard. The flush mounting kits allow for installation or
replacement of any existing VHF radio.
Upright or overhead mounting
Keep the following points in mind when choosing a
location.
• T he GX600D is designed to meet the IP67 specification
which allows for direct water spray. However, we
recommend you select a location that will minimise
excessive exposure to water splashes or continuous rain.
• S elect a location that won’t expose your radio
to continuous direct sunlight which could cause
overheating or UV degradation.
• E nsure that the location allows a free flow of air around
the heat sink on the back of the radio.
• T he microphone and all controls should be readily
accessible and the loud speaker easily heard from the
normal steering position. An extension speaker (SPK600)
can be installed if required.
• F or best results connect the battery leads directly to the
vessel’s battery. If you need to extend the power leads to
reach the battery use heavy insulated automotive wire of
at least #10 gauge.
• C
 omponents and currents in the radio create magnetic
fields. To avoid interference to ships compasses or
autopilot sensors, the GX600D should be mounted at
least 300 mm from such equipment.
Installing the Unit
After choosing your location, hold the unit with the
mounting bracket attached into the desired position and
mark the location with a pencil. Remove the mounting
bracket from the radio and drill the mounting holes. Bolt or
screw the bracket in place using hardware suitable for the
mounting surface. The unit is supplied with stainless steel
screws; however, if the mounting surface is unsuitable for
screws you may need to replace these with stainless steel
bolts. Remember the fixings for overhead mounted units
MK001, MK002 flush mounting
kits available)
INSTRUCTION MANUAL
PAGE 17
may have to withstand heavy pounding when the vessel is
in rough water or being towed on a trailer.
connector to match the extension speaker socket on the
rear of the radio.
DC Connections
Noise Suppression
Connect the RED power lead to the Positive (+) side of the
battery or to an accessory point in the vessel’s fuse box.
The inherent design of VHF FM radios results in a high
level of resistance to ignition and electrical interference.
However in some installations it may be necessary to
take additional steps to help reduce or eliminate noise
interference. During installation, try to route the DC battery
leads, the antenna lead or any accessory wires away from
the engine compartment, ignition or alternator wiring. If the
noise continues, it may be necessary to fit a suppression kit.
Contact your local Marine Dealer for more information.
Connect the BLACK power lead to the negative (-) side of
the battery or to a ground point in your vessel’s fuse box.
Note: The RED power lead is fitted with a 10 Amp fuse.
If the fuse blows, use only a standard 10 Amp (3AG type)
fuse as a replacement. Use of higher rated fuses or ‘slow
blow’ types could result in damage to your radio which
would void the warranty.
Connect the antenna cable to the rear antenna socket on
the radio using a PL259 coaxial connector.
If required, an SPK600 extension speaker may be installed
near the steering position or outside the cabin to improve
the reception clarity in those areas. The SPK600 is
specifically designed for the GX600D with a watertight
Similarly, if the interference you are experiencing is from
other electronic equipment such as a depth sounder, try to
keep the depth sounder’s DC leads and transducer cable
well away from your GX600D’s wiring.
Rear Panel Connections
DC Power Cable
Extension
Speaker Socket
NMEA
Remote Head
Gimbal
Knob
Antenna Socket
Mounting Bracket
GX600D Wiring
Extension Speaker
SPK600 (optional)
VHF Antenna
10 Amp Fuse
Black -
Red +
12 Volt Battery
GX600D
PAG E 1 8
INSTRUCTION MANUAL
GX600D
Specifications
ELECTRICAL
Audio Output Power: • 4 Watts average into external
4 Ohm speaker
General
• 2 Watts average into internal
speaker
Complies with: AS/NZS4415.1.2003
Frequency Range: 155 – 165 MHz
Audio SN: > 45 dB weighted
Channel Spacing: 25 kHz
Conducted Spurious
Emission: < -70 dBm
Modulation: FM
Channels Sets: • International, USA, Canada
• Private – 20 Channels
• USA Weather Channels
Supply Voltage: • 12 Volt nominal
• 10.5 – 15.6 Volt max. range
• Negative Earth
Frequency Stability: ±
 1.5 kHz over environmental
extremes
Scan Speed: 1 00 ms/channel
(10 channels/sec)
Current Consumption: • Muted: < 200 mA
• Full Volume: 700 mA
DSc Receiver
IF frequencies: • 1st: 38.85 MHz
• 2nd: 455 kHz
(Note: all DSC limits are for 10e-2 BER)
Sensitivity: -120 dBm
Spurious Rejection: > 75 dB
Intermodulation
Rejection: > 73 dB
Transmitter
Power Output: • High:  25 Watts Max
• Low:  1 Watt Max
Spurious Emissions: < -75 dBc
Frequency Deviation: ±
 5 kHz max +20 dB limiting
@ 1 kHz
Frequency Response: +
 6 dB per octave,
300 Hz – 3 kHz, +1 - 3 dB
Demodulated S/N: > 50 dB weighted
Current Consumption: • High Power:  < 5 Amps
• Low Power:  850 mA
Receiver
Adjacent Channel
Rejection: > 75 dB
Blocking Rejection: > 100 dB
MECHANICAL
Dimensions: 164 (W) x 65 (H) x 77 (D) mm
Flush Mounting: 46 mm Panel Depth minimum
Weight: 585 grams
ENVIRONMENTAL
Temperature Range: - 10°C to + 55°C
IF Frequencies: • 1st:   21.4 MHz
• 2nd:  450 kHz
Vibration: EN301-025-1
Sensitivity: - 120 dBm for 12 dB SINAD
unweighted
Solar Radiation: Case UV Stabilised
Water and Dust
Resistance: • IP67 excluding external
cabling
Squelch Sensitivity: Adjustable, 10 preset levels
Spurious Rejection: > 75 dB
Compass Safe Distance: 300 mm
Intermodulation
Rejection: > 73 dB
EXTERNAL CONNECTIONS
Microphone: 6 Pin socket
Adjacent Channel
Rejection: > 75 dB
DC Supply: 2 Pin Blade Socket
Blocking Rejection: > 100 dB
External Speaker: 3.5 mm Phono Line Socket
RF Bandwidth: < 4 MHz
Remote Head: 4 Pin Plug
Switching Bandwidth: > 10 MHz
GPS Interface: 3 Wire Cable
Frequency Response: - 6 dB per octave de-emphasis,
300 Hz – 3 kHz, +1 - 3 dB
All specifications are typical and subject to change without notice or obligation.
GX600D
INSTRUCTION MANUAL
PAGE 19
SPECIAL PURPOSE FREQUENCIES
CH
TX
RX
00 1
156.000
156.000
M1
157.425
M2
161.425
31
TRAFFIC TYPE
SHIP TO
SHIP
SHIP TO
SHORE
UK Coast Guard Users
Yes
Yes
157.850
UK Marina Channel M1
Yes
Yes
161.425
UK Marina Channel M2
Yes
Yes
157.550
162.150
INT’L, Duplex (Holland)
No
Yes
96H
162.425
162.425
INT’L (Belgium)
No
Yes
L1
155.500
155.500
INT’L (Skandinavia)
Yes
No
L2
155.525
155.525
INT’L (Skandinavia)
Yes
No
L3
155.650
155.650
INT’L (Skandinavia - not in Denmark)
Yes
No
F1
155.625
155.625
INT’L (Skandinavia)
Yes
No
F2
155.775
155.775
INT’L (Skandinavia)
Yes
No
F3
155.825
155.825
INT’L (Skandinavia) call back
Yes
No
1. Channel 00 is only for use in the UK to authorized users.
2. The special purpose frequencies are only licenced for use in the country indicated. Refer to your retailer for details.
WEATHER CHANNELS USA AND CANADA
MHz
TRAFFIC TYPE
WX 1
RX Only
162.550
NOAA WEATHER CHANNEL
WX 2
RX Only
162.400
NOAA WEATHER CHANNEL
WX 3
RX Only
162.475
NOAA WEATHER CHANNEL
WX 4
RX Only
162.425
NOAA WEATHER CHANNEL
WX 5
RX Only
162.450
NOAA WEATHER CHANNEL
WX 6
RX Only
162.500
NOAA WEATHER CHANNEL
WX 7
RX Only
162.525
NOAA WEATHER CHANNEL
WX 8
RX Only
161.650
CANADIAN WEATHER CHANNEL
WX 9
RX Only
161.775
CANADIAN WEATHER CHANNEL
WX 10
RX Only
163.275
NOAA WEATHER CHANNEL
GX600D
INSTRUCTION MANUAL
PAGE 20
USA FREQUENCY PLAN
FREQUENCY (MHz)
CHANNEL
DESIGNATOR
TX
RX
01 A
156.050
156.050
03 A
156.150
156.150
04 A
156.200
156.200
05 A
156.250
06
156.300
07A
FREQUENCY (MHz)
CHANNEL
DESIGNATOR
TX
RX
60A
156.025
156.025
61A
156.075
156.075
62A
156.125
156.125
156.250
63A
156.175
156.175
156.300
64A
156.225
156.225
156.350
156.350
65A
156.275
156.275
08
156.400
156.400
66A
156.325
156.325
09
156.450
156.450
67
156.375
156.375
10
156.500
156.500
68
156.425
156.425
11
156.550
156.550
69
156.475
156.475
12
156.600
156.600
70
13
156.650
156.650
14
156.700
156.700
15
156.750
156.750
16
156.800
156.800
NOTE
156.525
71
156.575
156.575
72
156.625
156.625
73
156.675
156.675
74
156.725
156.725
NOTE
RX only
17
156.850
156.850
75
156.775
156.775
18A
156.900
156.900
76
156.825
156.825
19A
156.950
156.950
77
156.875
156.875
20A
157.000
157.000
78A
156.925
156.925
21A
157.050
157.050
79A
156.975
156.975
22A
157.100
157.100
80A
157.025
157.025
23A
157.150
157.150
81A
157.075
157.075
24
157.200
161.800
82A
157.125
157.125
25
157.250
161.850
83A
157.175
157.175
26
157.300
161.900
84
157.225
161.825
27
157.350
161.950
85
157.275
161.875
28
157.400
162.000
86
157.325
161.925
87
157.375
161.975
88A
157.425
157.425
A. The letter “A” next to the channel designation indicates USA simplex channel. These channels are duplex in the
International Frequency Plan.
1. 1Watt initially. 25Watts by holding down 25/1Watt button during P.T.T. activation.
2. 1Watt only.
3. These channels require authorization from the U.S. Coast Guard for use in USA waters. Not for public use.
Bold type set indicates Duplex Channels.
CANADIAN FREQUENCY PLAN
FREQUENCY (MHz)
CHANNEL
DESIGNATOR
TX
RX
156.050
04A
FREQUENCY (MHz)
CHANNEL
DESIGNATOR
TX
RX
160.650
60
156.025
160.625
156.100
160.700
61A
156.075
156.075
156.150
160.750
62A
156.125
156.125
156.200
156.200
63A
156.175
156.175
156.225
160.825
NOTE
05A
156.250
156.250
64
156.300
156.300
64A
156.225
156.225
07A
156.350
156.350
65A
156.275
156.275
156.400
156.400
66A
156.325
156.325
156.450
156.450
67
156.375
156.375
10
156.500
156.500
68
156.425
156.425
69
156.475
156.475
NOTE
11
156.550
156.550
12
156.600
156.600
70
13
156.650
156.650
71
156.575
156.575
14
156.700
156.700
72
156.625
156.625
15
156.750
156.750
73
156.675
156.675
16
156.800
156.800
74
156.725
156.725
17
156.850
156.850
75
156.775
156.775
18A
156.900
156.900
76
156.825
156.825
19A
156.950
156.950
77
156.875
156.875
20
157.000
161.600
78A
156.925
156.925
79A
156.975
156.975
22A
157.100
157.100
21A
157.050
157.050
21B
80A
157.025
157.025
161.650
81A
157.075
157.075
157.125
157.125
157.175
157.175
22A
157.100
157.100
82A
23
157.150
161.750
83A
161.750
83B
23B
156.525
161.775
24
157.200
161.800
84
157.225
161.825
25
157.250
161.850
85
157.275
161.875
161.850
86
157.325
161.925
25B
26
157.300
161.900
87
157.375
157.375
27
157.350
161.950
87B
161.975
161.975
28
157.400
162.000
88
157.425
157.425
162.00
88B
162.025
162.025
28B
A. The letter “A” next to the channel designation indicates Canadian simplex channel. These channels are duplex in the international
frequency plan.
B. The letter “B” next to the channel designation indicates a canadian receive only channel.
1. 1Watt initially. 25Watts by holding down 25/1Watt button during P.T.T. activation.
2. 1Watt only.
3. These channels require authorization from the US Coast Guard for use in Canadian waters. Not for public use.
GX600D
INSTRUCTION MANUAL
PAGE 22
INTERNATIONAL FREQUENCY PLAN
FREQUENCY (MHz)
NOTE
FREQUENCY (MHz)
NOTE
CHANNEL
DESIGNATOR
TX
RX
CHANNEL
DESIGNATOR
TX
RX
01
156.050
160.650
60
156.025
160.625
02
156.100
160.700
61
156.075
160.675
03
156.150
160.750
62
156.125
160.725
04
156.200
160.800
63
156.175
160.775
05
156.250
160.850
64
156.225
160.825
06
156.300
156.300
65
156.275
160.875
07
156.350
160.950
66
156.325
160.925
08
156.400
156.400
67
156.375
156.375
09
156.450
156.450
68
156.425
156.425
10
156.500
156.500
69
156.475
156.475
11
156.550
156.550
70
12
156.600
156.600
71
156.575
156.575
13
156.650
156.650
72
156.625
156.625
14
156.700
156.700
73
156.675
156.675
15
156.750
156.750
74
156.725
156.725
16
156.800
156.800
75
156.775
156.775
17
156.850
156.850
76
156.825
156.825
18
156.900
161.500
77
156.875
156.875
19
156.950
161.550
78
156.925
161.525
20
157.000
161.600
79
156.975
161.575
21
157.050
161.650
80
157.025
161.625
22
157.100
161.700
81
157.075
161.675
23
157.150
161.750
82
157.125
161.725
24
157.200
161.800
83
157.175
161.775
25
157.250
161.850
84
157.225
161.825
26
157.300
161.900
85
157.275
161.875
27
157.350
161.950
86
157.325
161.925
28
157.400
162.000
87
157.375
157.375
88
157.425
157.425
156.525
RX ONLY
1. To provide a guard band for channel 16 the operator should restrict any communications on these channels to the 1
Watt setting.
Bold type set indicates Duplex Channels.
Note: it is not legal to use the International Frequency Plan in the USA or Canadian waters.
GX600D
INSTRUCTION MANUAL
PAGE 23
WARRANTY
GME limit this warranty to the original Purchaser of
the equipment.
GME warrant the GX600D to be free from defects
in material and workmanship for a period of twelve
(12) months from the date of purchase from their
authorised Dealer.
Should the product require servicing during this
period, all labour and parts used to effect repairs will
be supplied free of charge. GME reserve the right to
determine whether damage has been occasioned by
accident, misuse or improper installation whereby
the warranty would be void, including equipment
which has been damaged due to:
(a)
Incorrect or reverse polarity connection to
a battery or power supply or to an incorrect
supply voltage.
(b)
Operation without an antenna or by
connection to an antenna which has been
incorrectly installed, resulting in damage to
the radio’s output circuit.
(c)
Procedure to be followed by Claimant:  In the event
of a defect occurring during the warranty period,
the original Purchaser may return the defective
unit along with suitable proof of purchase date
(i.e. receipt, docket, credit card slip etc.) and a full
description of the defect to the Dealer from whom
the unit was purchased. All freight charges incurred
for transportation by the Dealer or GME are the
Purchaser’s responsibility.
GME AFTER SALES SERVICE
Your GME radio is especially designed for the
environment encountered in marine installations.  
The use of all solid state circuitry, careful design and
rigorous testing, result in high reliability.  Should
failure occur however, GME maintain a fully equipped
service facility and spare parts stock to meet the
Customer’s requirements long after expiry of the
warranty period.
National Distributor Details:
Non-factory modifications.
A Division of
Head Office: Sydney- Locked Bag 2086, North Ryde, N.S.W. 1670, Australia.  Tel: +61 (0)2 9844 6666  Fax : +61 (0)2 9844 6600
MELBOURNE
7 Micro Circuit
DANDENONG STH 3175
Tel: (03) 9798 0988
Fax: (03) 9798 0177
ADELAIDE
14 Phillips Street
THEBARTON 5031
Tel: (08) 8234 2633
Fax: (08) 8234 5138
PERTH
Unit 1
10-12 Harvard Way
CANNING VALE 6155
Tel: (08) 9455 5744
Fax: (08) 9455 3110
BRISBANE
Unit 1
89-101 Factory Road
OXLEY 4075
Tel: (07) 3278 6444
Fax: (07) 3278 6555
SYDNEY
Unit B
22-24 College Street
GLADESVILLE 2111
Tel: (02) 9879 8888
Fax: (02) 9816 4722
AUCKLAND
24 Bishop
Dunn Place
BOTANY STH 2013
Tel: (09) 274 0955
Fax: (09) 274 0959
For customers outside Australia and New Zealand please contact your local GME Distributor or email: export@gme.net.au
Part Number: 310350    Drawing Number: 43464-2TA
www.gme.net.au

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