Yaesu Musen 30593X3D MOBILE MARINE TRANSCEIVER User Manual GX6000 Owner s Manual
Yaesu Musen Co., Ltd. MOBILE MARINE TRANSCEIVER GX6000 Owner s Manual
Contents
OM User Manual 2

Page 31
GX6000
7.8.4  Changing COG to True or Magnetic
Allows the GPS COG (Course Over Ground) and the BRG from an AIS target 
to be selected to show in ON or OFF. Factory default is “OFF” however by 
following the steps below the COG can be changed to “ON”.
1.  Press the MENU key to display “MENU”.
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2.  Rotate the DIAL/ENT knob to select “SETUP”, then 
press the [SELECT] soft key.
3.  Rotate the DIAL/ENT knob to select “GPS SETUP”, 
then press the [SELECT] soft key.
4.  Rotate the DIAL/ENT  knob  to  select  “MAGNETIC 
VARIATION”, then press the [SELECT] soft key.
5.  Rotate the DIAL/ENT knob to select “OFF” or “ON”.
6.  Press  the  [ENTER]  soft  key  to  store  the  selected 
setting.
7.  Press the CLEAR key to return to radio operation.
NOTE
Setting to “ON” is effective only when the RMC sentences with magnetic 
data are input from external devices such as a GPS receiver (The 
SCU-31 inputs the RMC sentences, but does not input with magnetic 
data.).

Page 32 GX6000
8  BASIC OPERATION
8.1  TURNING ON AND OFF THE TRANSCEIVER
1.  After the transceiver has been installed, ensure that the power supply and 
antenna are properly connected.
2.  Press and hold the   key to turn the radio on.
3.  Press and hold the   key again to turn the radio off.
8.2  RECEPTION
1.  Rotate the SQL knob fully counterclockwise. This state is known as “squelch 
off”.
2.  Turn up the VOL knob until noise or audio from the speaker is at a comfort-
able level.
3.  Rotate the SQL knob, clockwise until the random noise disappears. This 
state is known as the “squelch threshold”.
4.  Rotate the DIAL/ENT knob or press the ▲/▼ key to 
select the desired channel. Refer to the channel chart 
on Pages 140 to 142 for available channels.
5.  When a message is received, adjust the volume to 
the desired listening level. The “[BUSY]” indicator on 
the display indicates that communications are being 
received.
8.3  TRANSMISSION
1.  Perform steps 1 through 4 of RECEPTION.
2.  Before transmitting, monitor the channel to ensure it is clear. 
  THIS IS AN FCC REQUIREMENT!
3.  Press  the  microphone’s  PTT  (push-to-talk)  switch. 
The “[TX]” indicator on the LCD is displayed.
4.  Speak slowly and clearly into the microphone.
5.  When the transmission is nished, release the micro-
phone’s PTT switch.
NOTE
Position your mouth about 1/2” (1.5 cm) away from the microphone 
hole and speak in a normal voice.

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GX6000
8.3.1  Transmit Power
The TX output power of the GX6000 is set to high level (25W) in factory default, 
and the “[HI]” indicator is displayed on the top part of the screen.
To switch the TX output power: 
1.  Press the ►/◄ key repeatedly until the [HI] or [LOW] 
soft key is displayed at the bottom of the screen.
2.  Press the [HI] or [LOW] soft key to switch between 
HI (25W) or LO (1W) output power. 
  When the TX output power is set to “Low” while the 
transceiver is on channel 13 or 67, the output power 
will temporarily switch from “Low” to “High” power until 
the PTT switch of the microphone is released. This 
soft key is not function on transmit inhibited and low 
power only channels.
8.4  BASIC OPERATION OF THE MENU MODE
Using the menu mode, the various functions of the GX6000 can be customized 
to match the method of use. You can select the items that you would like to 
adjust from the respective lists and enter or select the appropriate settings for 
the intended various operation.
1.  Press the MENU key on the operation mode screen 
to display “MENU”.
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2.  Rotate the DIAL/ENT knob or press the ▲/▼/►/◄ 
key to select the menu item, then press the [SELECT] 
soft  key  or  press  the  DIAL/ENT  knob  to  display  
“MENU LIST”.
3.  Rotate the DIAL/ENT knob or press the ▲/▼ key to 
select the item, then press the [SELECT] soft key or 
press the DIAL/ENT knob.
4.  Rotate the DIAL/ENT knob or press the ▲/▼ key to 
select the item, then press the [SELECT] soft key or 
press the DIAL/ENT knob.

Page 34 GX6000
5.  Rotate the DIAL/ENT knob or press the ▲/▼ key to 
select the desired setting. 
6.  Press the [ENTER] soft key to or press the DIAL/ENT 
knob store the selected setting.
7.  Press the CLEAR key to return to radio operation.
  (The  display  can  also  be  returned  to  the  previous 
screen by pressing the [BACK] soft key.)
The same operation process as the above is written as follows in this opera-
tion manual.
 []  “SETUP” “DSC SETUP”  “INDIVIDUAL DIRECTORY”
8.5  TRANSMIT TIME-OUT TIMER (TOT)
When the PTT switch on the microphone is held down, transmit time is limited 
to 5 minutes. This limits unintentional transmissions due to a stuck microphone. 
About 10 seconds before automatic transmitter shutdown, a warning beep will 
be heard from the speaker(s). The transceiver will automatically go to receive 
mode, even if the PTT switch  is  continually  held down.  Before  transmitting 
again, the PTT switch must rst be released and then pressed again.
NOTE
Once the transmitter is shut down by the TOT, transmission to the last 
channel is only allowed 10 seconds after the shutdown. 
8.6  SIMPLEX/DUPLEX CHANNEL USE
Refer to the VHF MARINE CHANNEL CHART  (Pages  140  to  142  )  for 
instructions on use of simplex and duplex channels.
NOTE
All channels are factory-programmed in accordance with FCC (USA), 
Industry  Canada  (Canada),  and  International  regulations.  Mode  of 
operation cannot be altered from simplex to duplex or vice-versa.

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GX6000
8.7  USA, INTERNATIONAL, AND CANADA MODE
To change the channel group from USA to International or Canada: 
1.  Press the MENU key to display “MENU”.
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2.  Rotate the DIAL/ENT knob to select “SETUP”, then 
press the [SELECT] soft key.
3.  Rotate the DIAL/ENT  knob  to  select  “CHANNEL 
SETUP”, then press the [SELECT] soft key.
4.  Rotate the DIAL/ENT  knob  to  select  “CHANNEL 
GROUP”, then press the [SELECT] soft key.
5.  Rotate the DIAL/ENT knob to select desired channel 
group “USA”, “INTL”, or “CAN”.
6.  Press  the  [ENTER]  soft  key  to  store  the  selected 
setting.
7.  Press the CLEAR key to return to radio operation.
8.8  NOAA WEATHER CHANNELS
1.  To receive a NOAA weather channel, press the ►/◄ 
key repeatedly until the [WX] soft key is displayed at 
the bottom of the screen.
2.  Press the [WX] soft key. The “WX” indicator appears 
on the top part of the screen.
3.  Rotate the DIAL/ENT knob to select a different NOAA 
weather channel.
4.  To exit from the NOAA weather channels, press the 
[CH] soft key. The transceiver returns to the channel 
it was on prior to a weather channel and the “WX” 
indicator disappears from the display.

Page 36 GX6000
8.8.1  NOAA Weather Alert
In the event of extreme weather disturbances, such as storms and hurricanes, 
the NOAA (National Oceanic and Atmospheric Administration) sends a weather 
alert accompanied by a 1050 Hz tone and subsequent weather report on one 
of the NOAA weather channels.
The GX6000 can receive weather alerts when monitoring a weather channel 
and, on the last selected weather channel during scanning modes or while on 
another working channel.
When an alert is received on a NOAA weather channel, 
scanning will stop and the transceiver will emit a loud 
beep to alert the user of a NOAA broadcast. Press any 
key to stop the alert. After stopping the beep sound, the 
weather alert reception conrmation screen will appear. 
Press [OK] to display a conrmation screen. The conr-
mation screen will ask you whether to move to the weather 
channel or return in the marine channel. Press [YES] to 
switch to the weather channel, and press [NO] to return 
to the marine channel.
To disable the weather alert function, refer to section “16.2 WEATHER ALERT”.
NOTE
If no key is pressed the alert will sound for 5 minutes and then the 
weather report will be received.
8.8.2  NOAA Weather Alert Testing
NOAA tests the alert system ever Wednesday between 11AM and 1PM. To 
test the GX6000’s NOAA weather feature, setup as in section “8.8.1 NOAA 
Weather Alert” and conrm the alert is heard on Wednesdays between 11AM 
and 1PM local time.

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GX6000
8.9  MULTI WATCH (TO PRIORITY CHANNEL)
Multi watch is used to scan two or three channels for communications.
•  In Dual Watch, a normal VHF channel and the priority channel are scanned 
alternately. 
•  In Triple Watch, a normal VHF channel, the priority channel, and the sub 
channel are scanned alternately. 
When a signal is received on the normal channel the  radio briey switches 
between the normal channel and the priority channel to look for a transmission. 
If the radio receives communications on the priority channel the radio stops 
and listens to priority channel until communication ends and then starts dual  
or triple watch scan again.
8.9.1  Setting up the Multi Watch Operation
1.  []  “SETUP”  “CHANNEL SETUP”  “MULTI WATCH”
2.  Rotate the DIAL/ENT  knob  to  select  “DUAL”  or 
“TRIPLE”.
3.  Press the [ENTER]  soft  key  to  store  the  selected 
setting.
4.  Press the [CLEAR] key to return to radio operation.
8.9.2  Starting the Dual Watch
1.  Adjust the SQL knob until the background noise disappears.
2.  Rotate the DIAL/ENT knob to select a channel you wish to watch.
3. Press ►/◄ key repeatedly until the [DUAL WATCH] 
soft key is displayed at the bottom of the screen, press 
the [DUAL WATCH] soft key. 
  The  radio  will  monitor  the  priority  channel  and  the 
channel that was selected in step 2.
  If a signal is received on the channel selected in step 
2, the GX6000 will dual watch to priority channel.
4.  To stop dual watch, press the [DUAL WATCH] soft key again.
When  selecting  “TRIPLE”  in  the  SETUP  menu,  [TRIPLE WATCH] will be 
displayed as the soft key instead of [DUAL WATCH].
NOTE
The priority channel may be changed from CH16 (default) to another 
channel. Refer to section “16.7 PRIORITY CHANNEL”.

Page 38 GX6000
8.10  SCANNING
The GX6000  will  automatically  scan  channels  programmed  into  the  preset 
channel memory and  also the scan channel  memory, and  the last selected 
weather channel.
When an incoming signal is detected on one of the channels during scan, the 
radio will pause on that channel, allowing you to listen to the incoming transmis-
sion. The radio will automatically start scanning again after the transmission 
stops.
8.10.1  Selecting the Scan Type
1.  []  “SETUP”  “CHANNEL SETUP”  “SCAN TYPE”
2.  Rotate the DIAL/ENT knob to select “PRIORITY” or 
“MEMORY”.
3.  Press the [ENTER]  soft  key  to  store  the  selected 
setting.
4.  Press the [CLEAR] key to return to radio operation.
Memory Scan (M-SCAN)
CH12
CH09
CH01A
CH15
CH18
CH22A
CH61A
CH68A
CH68A
CH88A
Priority Scan (P-SCAN)
Priority Channel
CH12
CH09
CH01A
CH15
CH18
CH22A
CH61A
CH68A
CH68A
CH88A
8.10.2  Programming Scan Memory
1.  []  “SETUP”  “CHANNEL SETUP”  “SCAN MEMORY”
2.  Rotate the DIAL/ENT knob to select a desired chan-
nel to be scanned, then press the [MEM] soft keys. 
“ON” icon will appear at the right side of the selected 
channel.
3.  Repeat step 2 for all the desired channels to be scanned.
4.  To REMOVE  a channel  from the list,  select the  channel then  press the 
[MEM] soft key. “ON” icon of the selected channel will disappear.
5.  When you have completed your selection, press the CLEAR key to return 
to radio operation.

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GX6000
To check channels to be scanned, rotate the DIAL/ENT 
knob. The “[MEM]” icon  will appear  when the memory 
channel is displayed. 
 Note: When “SCAN MEMORY” is assigned to the soft 
key, the memory function switches between on and 
off every time you press the [MEM] soft key.
8.10.3  Memory Scanning (M-SCAN)
1.  Set  the  scan  type  to  “MEMORY”  in  the  SETUP menu  (refer  to  “8.10.1 
Selecting the Scan Type”).
2.  Adjust the SQL knob until the background noise disappears.
3.  Press the ►/◄ key repeatedly, then press the [SCAN] 
soft  key.  “MEM  SCAN”  appears  on  the  display. 
Scanning will proceed from the lowest to the highest 
programmed channel number and preset channel 
(described  in  the  next  section)  and  will  stop  on  a 
channel when a transmission is received.
  The channel number will blink during reception.
4.  To stop scanning, press the [SCAN] soft key, 16/S or CLEAR key.
8.10.4  Priority Scanning (P-SCAN)
1.  Set  the  scan  type to  “PRIORITY”  in  the  SETUP  menu (refer  to  “8.10.1 
Selecting the Scan Type”).
2.  Adjust the SQL knob until the background noise disappears.
3.  Press the ►/◄ key repeatedly, then press the [SCAN] 
soft key. “PRI SCAN” appears on the display. Scan-
ning will proceed between the memorized channels 
and preset channel (described in next section) and 
the priority channel.
  The  priority  channel  will  be  scanned  after  each 
programmed channel.
4.  To stop scanning, press the [SCAN] soft key, 16/S or CLEAR key.
NOTE
In the default setting, Channel 16 is set as the priority channel. You 
may change the priority channel to the desired channel from Channel 
16 on the SETUP menu. Refer to section “16.7 PRIORITY CHANNEL”.

Page 40 GX6000
8.11  PRESET CHANNELS: INSTANT ACCESS
10 preset channels can be programmed for instant access. Press the ►/◄ 
key repeatedly, then press the [PRESET] soft key. Pressing the [PRESET] key 
activates the user assigned channel bank. If the [PRESET] soft key is pressed 
and no channels have been assigned, alert beep will sound.
Before beginning the Instant Access operation, assign the “PRESET” command 
into one of the programmable keys, refer to section “15.8 SOFT KEYS”.
8.11.1  Programming
1.  Rotate the DIAL/ENT knob to select the channel to 
be programmed.
2.  Press the ►/◄ key repeatedly to indicate the function 
on the display, then press and hold the [PRESET] soft 
key until the “P-SET” icon and channel number are 
blinking.
3.  Press the [ADD]  soft  key  to  program  the  channel 
into the preset channel memory. “[P-SET]” icon will 
appear.
4.  Repeat steps 1 through 3 to program the desired 
channels into the preset channels. Up to 10 channels 
can be registered. If you attempt to register the 11th 
channel, error beep will sound.
8.11.2  Operation
1.  Press the ►/◄  key  repeatedly,  then  press  the 
[PRESET] soft key to recall the preset channel. The 
“[P-SET]” icon will appear on the display.
2.  Rotate the DIAL/ENT knob to select the desired preset 
channel.
3.  Press the [PRESET]  soft  key  to  return  to  the  last 
selected channel. The “[P-SET]” icon will disappear 
from the display.

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GX6000
8.11.3  Deletion
1.  Press the ►/◄  key  repeatedly,  then  press  the 
[PRESET] soft key to recall the preset channel.
2.  Rotate the DIAL/ENT knob to select the preset chan-
nel to be deleted.
3.  Press and hold the [PRESET]  soft  key  until  the 
“[P-SET]” icon and channel number are blinking.
4.  Press the [DELETE] soft key to delete the channel 
from the preset channel memory.
5.  Repeat steps 2 through 4 to delete the desired chan-
nels from preset channels.
6.  To exit from deleting the preset channels, press the [QUIT] soft key.
8.12  MOB OPERATION
The GX6000 provides a feature to memorize the position information instantly 
in case of MOB (Man Over-Board).
1.  Press the ►/◄ key repeatedly, then press the [MOB] 
soft key.
2.  Press the [TO WPT] soft key to start the navigation to 
the displayed position. For details about the naviga-
tion, see section “11 NAVIGATION”.
  To modify the displayed position information, press the 
[POS/TM] soft key. For details about the modication, 
see “Editing a Waypoint” on page 86.
3.  To transmit a DSC distress message, lift the red spring 
loaded DISTRESS cover on the right side of the 
transceiver, then press and hold the DISTRESS key 
(see section “10.2.1 Transmitting a DSC Distress 
Alert” for details).
  The nature of the distress call is automatically set to “MOB”.

Page 42 GX6000
8.13  PA/FOG OPERATION
The GX6000 has two 25 W hailers built-in and can be used with any 4 Ohm 
PA horn. Standard Horizon offers two HAIL/PA horns, the 220SW (5” round 
30 Watt HAIL/PA horn) and the 240SW (5” x 8” rectangular 40 Watt HAIL/PA 
horn). When the GX6000 is in PA Hail mode the PA speaker listens back (acts 
as a microphone and provides two-way communications through the HAIL/PA 
horn to the main radio).
NOTE
When in the PA HAIL or FOG HORN mode, the GX6000 will continue 
to receive DSC calls and communications on the last selected working 
channel prior to entering the PA HAIL or FOG HORN mode.
Then the GX6000 AIS page can also be accessed when in the PA HAIL 
or FOG HORN mode. 
PA HAIL mode:
 PA HAIL mode allows the transceiver to be used as a power hailer when 
an  optional  STANDARD  HORIZON  220SW or 240SW HAIL/PA horn is 
installed. The PA Hail mode has a listen-back feature which provides two 
way communication through the HAIL/PA horn.
FOG HORN mode:
  Automatic signaling is transmitted through the HAIL/PA horn. When the 
fog horn signal is not being outputted the GX6000 listens back through the 
connected HAIL/PA horn.
HORN mode:
 Foghorn sound or siren sound can be transmitted through the HAIL/PA 
horn. When the fog horn signal is not being outputted the GX6000 listens 
back through the connected HAIL/PA horn.
8.13.1  Operating the PA HAIL mode
1.  []  “PA FOG”  “PUBLIC ADDRESS”
2.  Rotate the DIAL/ENT knob to speaker select “ALL”, 
“PA1” or “PA2”, then press the [SELECT] soft key.
  Press the microphone’s PTT switch to speak through 
the HAIL/PA speaker.
3.   Press  the  [PA VOL] soft key, then rotate the DIAL/
ENT knob to control the AF output level.
  Press the [ENTER] soft key. The AF output level can 
be set from 0 to 31.

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GX6000
4.  To listen back, rotate the VOL knob.
5.  Press the CLEAR key to return to radio operation.
8.13.2  Operating the FOG HORN mode
The user can select the type of horn from “Underway”, “Stop”, “Sail”, “Towing”, 
“Aground” and “Anchor”.
1.  []  “PA FOG”  “FOG HORN”
2.  Rotate the DIAL/ENT knob to select one of the six 
functions described above, then press the [SELECT] 
soft key.
3.  Rotate the DIAL/ENT knob to speaker select “ALL”, 
“PA1” or “PA2”, then press the [SELECT] soft key.
4.  On  the  “FOG HORN”  mode,  while  pressing  the 
[HORN] soft key to activate the tone through the HAIL/
PA speaker.
  Press the [FOG VOL] soft key, then rotate the DIAL/
ENT knob to control the AF output level. 
  Press the [ENTER] soft key. The AF output level can 
be set from 0 to 31.
5.  To listen back, rotate the VOL knob.
6.  Press the CLEAR key to return to radio operation.
8.13.3  Fog Signal Timing Chart
TYPE PATTERN USAGE
UNDERWAY One  5-second  blasts 
every 120 seconds.
5s 5s
120s
Listen Back
Motor vessel underway and 
making way.
STOP Two 5-second blasts 
(separated  by  2  
seconds)  every  120 
seconds.
5s 5s5s 5s
2s 2s
120s
Listen Back
Motor vessel underway but 
stopped (not making way).
SAIL One  5-second  
blasts  followed  by 
two 1-second blasts 
(separated  by  2  
seconds)  every  120 
seconds.
1s 1s1s 1s5s 5s
2s 2s2s 2s
120s
Listen Back
Sailing  vessel  underway, 
shing vessel  (underway or 
anchored), vessel not under 
command, a vessel restricted 
in  her  ability  to  maneuver 
(underway or  at anchor),  or 
a vessel towing or pushing 
another ahead.

Page 44 GX6000
TYPE PATTERN USAGE
TOWING One  5-second  blasts 
followed  by  three 
1-second blasts 
(separated  by  2  
seconds)  every  120 
seconds.
1s 1s1s 1s1s 1s5s 5s
2s 2s2s 2s2s 2s
120s
Listen Back
Vessel under tow (manned).
AGROUND One  11-second  rings 
every 60 seconds.
1s 1s
1s
11s
1s 1s
1s 5s
250ms
60s
Listen Back
Vessel is aground.
ANCHOR One  5-second  rings 
every 60 seconds.
5.25s
5s
250ms
60s
Listen Back
Vessel is at anchor.
8.13.4  Operating the HORN mode
The user can select the type of horn from “Horn” and “Siren”.
1.  []  “PA FOG”  “HORN”
2.  Rotate the DIAL/ENT  knob  to  select  “HORN”  or 
“SIREN”, then press the [SELECT] soft key.
3.  Rotate the DIAL/ENT knob to speaker select “ALL”, 
“PA1” or “PA2”, then press the [SELECT] soft key.
4.  On  the  “Horn”  and  “Siren”  modes,  while  pressing 
the [HORN] soft key to activate the tone through the 
HAIL/PA speaker.
  Press the [FOG VOL] soft key, then rotate the DIAL/
ENT knob to control the AF output level. Press the 
[ENTER] soft key. The AF output level can be set from 
0 to 31.
5.  To listen back, rotate the VOL knob.
6.  Press the CLEAR key to return to radio operation.

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GX6000
8.14  INTERCOM OPERATION
The optional SSM-70H (RAM4) remote station microphone must be connected 
to perform intercom functions between the GX6000 and the SSM-70H (RAM4).
NOTE
When using the intercom function, connect one or two SSM-70H 
(RAM4) Remote Station Microphone to the GX6000.
8.14.1  Communication
1.  []  “IC”
2.  Rotate the DIAL/ENT knob to select the device to 
which  you  want  to  communicate,  then  press  the 
[SELECT] soft key. The “” icon will appear at the 
left side of the selected station.
 Note: When only one SSM-70H (RAM4) is connected 
to GX6000, continue to step 5. 
3.  Repeat step 2 for all the desired devices.
4.  Press the [ENTER] soft key.
5.  When the intercom mode is enabled, “INTERCOM” 
is displayed on the radio and SSM-70H (RAM4).
6.  Press the microphone’s PTT switch on the radio. “Talk” 
will be shown on the display.
 Note: A warning beep will be heard when the radio’s 
PTT and RAM4’s  PTT switches are pushed at the 
same time.
7.  Speak slowly and clearly into the microphone, hold the microphone about 
1/2” (1.5 cm) away from your mouth.
8.  When nished, release the PTT switch.
9.  Press the CLEAR key to return to radio operation.
8.14.2  Calling
Pressing the [BELL] soft key when in intercom mode on either the radio or 
RAM4 microphone will produce a calling beep to the other station.
8.15  VOICE SCRAMBLER
The voice scrambler function for the 4-code type (CVS2500A compatible) or 
the 32-code type (FVP-42 compatible for Furuno Electric FM-4721) is avail-
able by conguring optional settings. Refer to the section “16.13 SCRAMBLER 
SETUP” to program the voice scrambler.