Yaesu Musen 30053X30 VHF/FM MARINE TRANSCEIVER User Manual GX1256S p65

Yaesu Musen Co., Ltd. VHF/FM MARINE TRANSCEIVER GX1256S p65

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Users Manual

GX1256S Page 1

Compact and Simple Operation

Capable of connecting an optional enhanced RAM+ second sta-

tion remote microphone

RTCM SC-101 DSC Distress call with your exact position

DSC position request/send function and NMEA data input/out-

put to connect to GPS Plotter

DSC Group call feature included

Backlit Keypad and LCD

Channel Name, GPS Time or GPS Position Repeating shown on

the display

One-button access to Channel 16 and 9

NOAA Weather Alert

Versatile User-programmable Scan, Priority Scan and Dual

Watch

Microphone with Channel Selection

Access to all US, Canadian and International Channels

3 year waterproof warranty

with GPS connected

QUEST+ GX1256S

25 Watt VHF/FM

Marine Transceiver

Owner's Manual

GX1256SPage 2

TABLE OF CONTENTS

SAFETY/WARNING INFORMATION .......................................................... 4

FCC RADIO LICENSE INFORMATION ...................................................... 5

STATION LICENSE ............................................................................................................................

RADIO CALL SIGN ............................................................................................................................

CANADIAN SHIP STATION LICENSING .........................................................................................

FCC / INDUSTRY CANADA INFORMATION ..................................................................................

FCC NOTICE ................................................................................................ 6

GETTING STARTED .................................................................................... 7

ABOUT VHF RADIO ..........................................................................................................................

SELECTING ANTENNA .....................................................................................................................

COAXIAL CABLE ...............................................................................................................................

1 GENERAL INFORMATION .................................................................... 9

2 PACKING LIST .................................................................................... 10

3 OPTIONS ............................................................................................. 10

4 INSTALLATION .................................................................................... 11

4.1 LOCATION ..................................................................................................................................

4.2 ELECTRICAL CONNECTIONS .................................................................................................

4.3 ACCESSORY CABLE ...............................................................................................................

4.4 CONNECTION OF GPS WITH NMEA OUTPUT .................................................................

4.5 CHECKING GPS CONNECTION ............................................................................................

4.6 OPTIONAL MMB-84 FLUSH MOUNT INSTALLATION ..........................................................

4.7 OPTIONAL CMP25 RAM+ MIC INSTALLATION ...................................................................

5 CONTROLS AND INDICATORS ........................................................ 16

5.1 CONTROLS AND CONNECTIONS .........................................................................................

6 BASIC OPERATION ........................................................................... 21

6.1 RECEPTION ..............................................................................................................................

6.2 TRANSMISSION .......................................................................................................................

6.3 TRANSMIT TIME-OUT TIMER (TOT) .....................................................................................

6.4 SIMPLEX/DUPLEX CHANNEL USE .......................................................................................

6.5 USA, CANADA, AND INTERNATIONAL MODE .....................................................................

6.6 NOAA WEATHER CHANNELS ...............................................................................................

6.7 NOAA WEATHER ALERT ........................................................................................................

6.8 NOAA WEATHER ALERT TESTING .....................................................................................

6.9 EMERGENCY (CHANNEL 16 USE) ......................................................................................

6.10 CALLING ANOTHER VESSEL (CHANNEL 16 OR 9) .......................................................

6.11 MAKING TELEPHONE CALLS .............................................................................................

6.12 OPERATING ON CHANNELS 13 AND 67 .........................................................................

6.13 PROHIBITED COMMUNICATIONS .......................................................................................

6.14 DUAL WATCH (TO CH16) ....................................................................................................

6.15 MEMORY SCANNING (M-SCAN) ..........................................................................................

6.16 PRIORITY SCANNING (P-SCAN) ..........................................................................................

6.17 POSITION INDICATION .........................................................................................................

6.18 TIME INDICATION .................................................................................................................

6.19 RESETTING THE TRANSCEIVER’S MICROPROCESSOR ...............................................

GX1256S Page 3

7 DIGITAL SELECTIVE CALLING ........................................................ 29

7.1 GENERAL ..................................................................................................................................

7.2 DSC SCAN ...............................................................................................................................

7.3 USCG DSC WATCH ................................................................................................................

7.3.1 Maritime Mobile Service Identity (MMSI) ............................................................................

7.3.2 Progamming the MMSI .........................................................................................................

7.4 ADDITIONAL DIGITAL SELECTIVE CALLING INFORMATION ...........................................

7.5 DSC DISTRESS CALL .............................................................................................................

7.5.1 Transmitting A DSC Distress Call ........................................................................................

7.5.2 Receiving a distress Call .....................................................................................................

7.5.3 Receiving a distress relay Call ...........................................................................................

7.6 ALL SHIP CALL .......................................................................................................................

7.6.1 Transmitting an All Ships Call .............................................................................................

7.6.2 Receiving an All Ships Call .................................................................................................

7.7 INDIVIDUAL CALL ....................................................................................................................

7.7.1 Setting up the Individual / Position Call Directory ..............................................................

7.7.2 Setting up Individual Reply ...................................................................................................

7.7.3 Setting up Individual Call Ringer ........................................................................................

7.7.4 Transmitting an Individual Call ............................................................................................

7.7.5 Receiving an Individual Call ................................................................................................

7.7.6 Setting up the Call Waiting Function ..................................................................................

7.8 ADVANCED DSC CALL ..........................................................................................................

7.8.1 Group Call .............................................................................................................................

7.8.2 Position Request ...................................................................................................................

7.8.3 Position Send ........................................................................................................................

7.8.4 Receiving a geographical area call ....................................................................................

8 RADIO SETUP MODE ........................................................................ 47

8.1 LAMP ADJUSTING ...................................................................................................................

8.2 LCD CONTRAST ADJUSTING ...............................................................................................

8.3 KEY BEEP (ON OR OFF) ........................................................................................................

8.4 WEATHER ALERT (ON OR OFF) ............................................................................................

8.5 CHANNEL NAME CHANGE ....................................................................................................

8.6 TIME OFFSET ..........................................................................................................................

9 RAM+ MIC OPERATION ..................................................................... 51

9.1 RAM+ MIC CONTROLS ..........................................................................................................

9.2 INTERCOM OPERATION ........................................................................................................

9.3 DSC / RADIO SETUP MODE ..................................................................................................

10 MAINTENANCE .................................................................................. 56

10.1 REPLACEMENT PARTS ........................................................................................................

10.2 FACTORY SERVICE ..............................................................................................................

10.3 TROUBLESHOOTING CHART ..............................................................................................

11 CHANNEL ASSIGNMENTS ................................................................ 59

12 WARRANTY ........................................................................................ 65

13 SPECIFICATIONS ............................................................................... 69

TABLE OF CONTENTS

GX1256SPage 4

SAFETY / WARNING INFORMATION

This radio is restricted to occupational use, work related operations only

where the radio operator must have the knowledge to control the exposure

conditions of its passengers and bystanders by maintaining the minimum

separation distance.

The safety distance is determined by the antenna gain. With a 0dBi gain

whip antenna the safety distance 0.6 meters (2 feet); with a 3 foot 3dBi gain

whip the safety distance is 1.0 meter (3.25 feet) and with an 8 foot 6dBi

fiberglass whip the safety distance is 1.2 meters (4 feet).

When passengers or bystanders are closer to the antenna than the limits

stated the operator must either cease transmitting or restrict operation to

low power. Failure to observe these restrictions will result in exceeding the

FCC RF exposure limits.

Antenna Installation:

The antenna must be located at least 0.6 m (2 feet) away from passengers

in order to comply with the FCC RF exposure requirements. The distance

given is for a zero gain whip antenna. Use of higher gain antennas will in-

crease this safety distance as discussed above.

For roof top installation, the antenna must be placed in the center of the

roof.

ON-LINE WARRANTY REGISTRATION

Please visit www.standardhorizon.com to register the QUEST+ Marine

VHF. It should be noted that visiting the Web site from time to time may

be beneficial to you, as new products are released they will appear on

the STANDARD HORIZON Web site.

PRODUCT SUPPORT INQUIRIES

If you have any questions or comments regarding the use of the QUEST+,

you can visit the STANDARD HORIZON Web site to send an E-Mail or

contact the Product Support team at 800-767-2450 M-F 7:00-5:00PST.

GX1256S Page 5

FCC RADIO LICENSE INFORMATION

Standard Horizon radios comply with the Federal Communication Commis-

sion (FCC) requirements that regulate the Maritime Radio Service.

STATION LICENSE

An FCC ship station license is no longer required for any vessel traveling in

U.S. waters which is under 20 meters in length. However, any vessel re-

quired to carry a marine radio on an international voyage, carrying a HF

single side band radiotelephone or marine satellite terminal is required to

have a ship station license. FCC license forms, including applications for

ship (506) and land station licenses can be downloaded via the Internet at

www.fcc.gov/forms. To obtain a form from the FCC, call (888) 225-5322.

RADIO CALL SIGN

Currently the FCC does not require recreational boaters to have a Ship Radio

Station License. The USCG recommends the boats registration number and

the state to be used.

CANADIAN SHIP STATION LICENSING

You may need a license when traveling in Canada. If you do need a license

contact their nearest field office or regional office or write:

Industry Canada

Radio Regulatory Branch

Attn: DOSP

300 Slater Street

Ottawa, Ontario

Canada, KIA 0C8

FCC/ INDUSTRY CANADA INFORMATION

The following data pertaining to the transceiver is necessary to fill out the

license application.

Type Acceptance ....................................................................... FCC Part 80

Output Power ............................................. 1 Watt (low) and 25 Watts (high)

Emission ....................................................................... 16K0G3E, 16K0G2B

Frequency Range .................................................. 156.025 to 163.275 MHz

FCC Type Number ................................................................. K6630053X30

Industry Canada Type Approval .......................................... 511B-30053X30

GX1256SPage 6

FCC NOTICE

NOTICE

Unauthorized changes or modifications to this equipment may void com-

pliance with FCC Rules. Any change or modification must be approved

in writing by STANDARD HORIZON.

NOTICE

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. 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 de-

termined 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 circuit different from that

to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

GX1256S Page 7

GETTING STARTED

ABOUT VHF RADIO

The radio frequencies used in the VHF marine band lie between 156 and

158 MHz with some shore stations available between 161 and 163 MHz.

The marine VHF band provides communications over distances that are

essentially “line of sight” (VHF signals do not travel well through objects

such as buildings, hills or trees). Actual transmission range depends much

more on antenna type, gain and height than on the power output of the

transmitter. On a fixed mount 25W radio transmission expected distances

can be greater than 15 miles, for a portable 5W radio transmission the ex-

pected distance can be greater than 5 miles in “line of sight”.

SELECTING AN ANTENNA

Marine antennas are made to radiate signals equally in all horizontal direc-

tions, but not straight up. The objective of a marine antenna is to enhance

the signal toward the horizon. The degree to which this is accomplished is

called the antenna's gain. It is measured in decibels (dBi) and is one of the

major factors in choosing an antenna. In terms of effective radiated power

(ERP), antennas are rated on the basis of how much gain they have over a

theoretical antenna with zero gain. A 3 foot, 3dBi gain antenna represents

twice as much gain over the imaginary antenna. The length of the antenna

you choose, however, must also be related to the size of your boat as FCC

RF exposure distances are increased with higher gain.

Typically a 3 foot 3dBi stainless steel whip is used on a sailboat mast.

The longer 8 foot 6dBi fiberglass whip primarily used on larger power boats,

that require the additional gain.

GX1256SPage 8

COAXIAL CABLE

VHF antennas are connected to the transceiver by means of a coaxial cable

– a shielded transmission line. Coaxial cable is specified by it’s diameter

and construction.

For runs less than 20 feet, RG-58/U, about 1/4 inch in diameter is a good

choice. For runs over 20 feet but less than 50 feet, the larger RG-8X or RG-

213/U should be used for cable runs over 50 feet RG-8U should be used.

For installation of the connector onto the coaxial cable refer to the figure

below.

To get your coax cable through a fitting and into your boat’s interior, you

may have to cut off the end plug and reattach it later. You can do this if

you follow the directions that come with the connector. Be sure to make

good soldered connections.

1/16''

3/4''

1 1/8''

1/8''

5/8''3/8''

Adapter

GX1256S Page 9

1 GENERAL INFORMATION

The STANDARD HORIZON QUEST+ is a VHF/FM transceiver designed for

use in the frequency range of 156.025 to 163.275 MHz. The GX1256S re-

quires 13.8V for operation and has a switchable RF output power of 1 watt

or 25 watts.

The transceiver is capable of RTCM SC101 DSC (Digital Selective Calling)

operation.

The transceiver operates on all currently-allocated marine channels which

are switchable for use with either USA, International, or Canadian regula-

tions. It has an emergency channel 16 which can be immediately selected

from any channel by pressing the red [16/9] key. NOAA Weather channels

can also be accessed immediately by pressing the [WX] key.

Other features of the transceiver include: scanning, priority scanning, sub-

mersible mic, high and low voltage warning, and GPS repeatability.

GX1256SPage 10

2 PACKING LIST

When the package containing the transceiver is first opened, please check

it for the following contents:

•GX1256S QUEST+ Transceiver (with White/Black Microphone)

• Mounting Bracket (with attaching hardware and hanger kit)

• Owner’s Manual

• Quick-Reference Card

• Power Cord

• Dust Cover

3 OPTIONS

MMB-84 ........................................................................Flush-Mount Bracket

CMP25B/W ............ Remote-Access Microphone (RAM+ Mic, Black/White)

CT-100 ............................................. 10-foot Extension Cable for RAM+ Mic

101W .................................................................... White Extension Speaker

201SW .................................................................. White Extension Speaker

201SWZ........................................... White Flush Mount Extension Speaker

201SB .................................................................... Black Extension Speaker

201SBK ............................................ Black Flush Mount Extension Speaker

GX1256S Page 11

4 INSTALLATION

4.1 LOCATION

The radio can be mounted at any angle. Choose a mounting location that:

• is far enough from any compass to avoid any deviation in compass

reading due to the speaker magnet

• provides accessibility to the front panel controls

• allows connection to a power source and an antenna

• has nearby space for installation of a microphone hanger

• the antenna must be mounted at least 3 feet from radio

The FCC RF exposure label should be visible to the operator in the installed

position. If not then a self adhesive panel label can be obtained from your

Standard Horizon Dealer, by calling (800) 767-2450, or by e-mailing

marinetech@vxstdusa.com

4.2 ELECTRICAL CONNECTIONS

CAUTION

Reverse polarity connections will damage the radio!

Connect the power cord and antenna to the radio. Antenna and Power Sup-

ply connections are as follows (see Figure 1):

1. Mount the antenna at least 3 feet away from the radio. At the rear of the

radio, connect the antenna cable. It must have a PL259 connector. RG-

8/U coaxial cable must be used if the antenna is 25 feet or more from the

radio. RG58 cable can be used for distances less than 25 feet.

2. Connect the red power wire to a 13.8 VDC ±20% power source. Connect

the black power wire to a negative ground.

3. If an optional remote extension speaker is to be used, refer to section

4.3 for connections.

4. It is advisable to have a Certified Marine Technician check the power

output and the standing wave ratio of the antenna after installation.

Figure 1. General Installation

GPS Navigation Receiver

Accessory Cable

Optional Speaker

Antenna

Fuse

Red

Power Source

Black

Water proof

Deck Outlet

GX1256SPage 12

4.3 ACCESSORY CABLE

White: External speaker (+)

Shield: External speaker (–)

Blue: NMEA IN (+) from GPS navigation receiver

Green: NMEA common

Gray: NMEA OUT (+) to GPS navigation receiver

Brown: Test port (for the Service Technican)

When connecting the external speaker or GPS navigation receiver, strip off

about 1 inch (2.5 cm) of the specified wire’s insulation, then splice the ends

together.

Wire Color/Description

WHITE - External Speaker (+)

SHIELD - External Speaker (–)

GREEN - NMEA Ground

BLUE- NMEA Input (+)

GRAY- NMEA Output (+)

Connection Examples

Connect to external 4 Ohm audio speaker

Connect to NMEA (–) connection of GPS

Connect to NMEA (+) output of GPS

Connect to NMEA (+) input of GPS

External Speaker

Green

Gray

Blue

Shield

White

Brown

Green

Blue

GX1256S Page 13

4.4 CONNECTION OF GPS WITH NMEA OUTPUT

Additional Information:

• The GPS must have the NMEA Output turned on and set to 4800 Baud

in the setup menu. If there is a selection for parity select none.

• For further information on interfacing /setting up your GPS. Please con-

tact the manufacturer of the GPS receiver.

•QUEST+ is corresponded with following NMEA sentence:

• NMEA-0183 version 2.0 or higher

• GLL, GGA, RMC and GNS (RMC sentence is recommended)

If you have further inquires, please feel free to contact us at:

Phone: (800) 767-2450

Web site: standardhorizon.com

Email: marinetech@vxstdusa.com

4.5 CHECKING GPS CONNECTION

After connections have been made between the QUEST+ and the GPS, a

small satellite icon will appear on the top right corner of the LCD display. To

see additional GPS information press and hold the [H/L(POS)] key until the

QUEST+ shows the Latitude and Longitude.

NOTE

The QUEST+ may be setup to show Lat/Lon or time received from a

connected GPS. To setup and show time refer to Section 6.18.

Manufacturer/Model

Lowrance Portable

Magellan Fixed Mount

Magellan Portable

Northstar

Raytheon 420

Raytheon 520 / 620

Raytheon RL SERIES

Simrad

Sitex Neptune, Nautilus

Wires

Orange

Black (GND)

Gray

Black (GND)

Orange

Black (GND)

Yellow

Black (GND)

Yellow

Brown

Blue

Brown

White

Brown

White

Brown

Gray

Brown

QUEST+

Blue

Green

Blue

Green

Blue

Green

Blue

Green

Blue

Green

Blue

Green

Blue

Green

Blue

Green

Blue

Green

Wires

Green

Blue

Brown

White

Blue

White

Black

Blue

Black (GND)

Brown

Black (GND)

Yellow

Green

Black

White

Black

White

Black (GND)

Manufacturer/Model

STANDARD HORIZON

Furuno GP30, 36

Furuno GP1650, 1850

Garmin Fixed Mounts

Garmin Portables

JRC GPS500

JRC 100 SERIES

JRC 200 SERIES

Lowrance Fixed Mount

QUEST+

Green

Gray

Blue

Green

Blue

Green

Blue

Green

Blue

Green

Blue

Green

Blue

Green

Blue

Green

Blue

Green

GX1256SPage 14

4.6 OPTIONAL MMB-84 FLUSH MOUNT INSTALLATION

1. Make a rectangular template for the flush mount measuring 2” H x

5-5/16” W.

2. Use the template to mark the location where the rectangular hole is to be

cut. Confirm the space behind the dash or panel is deep enough to ac-

commodate the transceiver (at least 6 inches deep).

There should be at least 1/2 inch between the transceiver’s heatsink and

any wiring, cables or structures.

3. Cut out the rectangular hole and insert the transceiver.

4. Fasten the brackets to the sides of the transceiver with the lock washer

nut combination, so that the mounting screw base faces the mounting

surface (see Figure 2).

5. Turn the adjusting screw to adjust the tension so that the transceiver is

tight against the mounting surface.

6. Fix self-adhesive FCC Exposure Label supplied with MMB-84 kit on the

panel next to the transceiver where it can clearly seen by the operator.

Figure 2. MMB-84 Flush Mount Instllation

Bracket

Adjusting Screw

Lock-washer nut combination

GX1256S Page 15

4.7 OPTIONAL CMP25 RAM+ MIC INSTALLATION

1. Connect the RAM+ MIC Cable to the RAM MIC CONNECTOR on the

rear panel, then tighten the Cable Nut (See Figure 3).

2. Referring to Figure 3, make a 1.2” (30 mm) hole in the wall, then insert

the RAM+ MIC Cable into this hole. Connect the Gasket and Mount Base

to the RAM+ MIC Cable Connector using the Nut.

3. Drill the four Screw holes (approx. 2 mm) on the wall, then install the

Mounting Base to the wall using four screws.

4. Put the Rubber Cap on to the Nut. The installation is now completed.

Figure 3. RAM+ MIC Installation

Wall

Gasket

Cap

Nut

RAM MIC Cable

GX1256SPage 16

5 CONTROLS AND INDICATORS

NOTE

This section defines each control of the transceiver. See Figure 4 for

location of controls. For detailed operating instructions refer to chapter

6 of this manual.

5.1 CONTROLS AND CONNECTIONS

POWER SWITCH/VOLUME CONTROL

Turns the transceiver on and off as well as adjusts the audio volume. To

turn the transceiver on press and hold this knob until the LCD turns on.

To turn it off, press and hold this knob until the LCD turns off. When the

power is turned on, the transceiver is set to the last selected channel.

Secondary Use

When the transceiver is turned on while the [SCAN(MEM)] and [WX]

keys are held down, the internal microprocessor is reset. This clears the

memory and all user-programmed settings, such as scan memory. This

condition is known as the default condition, the same as when shipped

from the factory. For a list of these defaults, see the section on Resetting

the Transceiver’s Microprocessor.

NOTE

Resetting the microprocessor will not erase DSC MMSI and Direc-

tory Call information.

SQUELCH CONTROL (SQL)

Sets the point at which random noise on the channel does not activate

the audio circuits but a received signal does. This point is called the

squelch threshold. Further adjustment of the squelch control will degrade

reception of wanted transmissions.

KEYPAD

[16/9] Key

Immediately recalls channel 16 from any channel location. Holding down

this key recalls channel 9. Pressing the [16/9] key again reverts to the

previous selected working channel.

Secondary use

Please see secondary use for the [WX] key.

GX1256S Page 17

Figure 4. Controls and Connectors

GX1256SPage 18

[WX] Key

Immediately recalls the previously selected NOAA weather channel from

any channel location.

Secondary use

1. Holding down the [16/9] key while pressing the [WX] key changes

the mode from USA to International or Canadian.

2. Holding down the [WX] and [SCAN(MEM)] key while turning the power

on resets the microprocessor and erases scan channels from memory.

This clears the memory and establishes the factory-set defaults. For

a list of these defaults, see the section on Resetting the Transceiver’s

Microprocessor.

[DW(IC)] Key

Watches for a transmission on CH16 and another selected channel until

either signal is received. (Dual watch)

NOTE: When the DSC SCANNING feature is enabled(see section 7.10

DSC SCANNING), the radio watches for a transmission on CH16, an-

other selected channel, and CH70 until either signal is received (Triple

watch).

Secondary use

Press and hold [DW(IC)] key, when the optional RAM+ Mic is connected,

intercom operation will operate between radio and RAM+ Mic.

[H/L(POS)] Key

Toggles between high and low power. When the [H/L(POS)] key is pressed

while the transceiver is on channel 13 or 67, the power will temporarily

switch from LO to HI power until the PTT is released. The [H/L(POS)]

key does not function on transmit inhibited and low power only channels.

Secondary use

Press and hold the [H/L(POS)] key to display the Position Data on the

LCD, when connected to the GPS receiver.

[SCAN(MEM)] Key

1. Starts and stops scanning of programmed channels.

2. If held while the [UP] or [DOWN] key on the microphone are pressed

or [UP] or [DOWN] key on radio are pressed, the radio will show the

channels programmed in scan memory. This function will not work if

the unit is scanning.

NOTE: The priority channel is channel 16 only.

GX1256S Page 19

[CALL/SET(MENU)] Key

The [CALL/SET(MENU)] key functions as the enter key.

Secondary use

Press the [CALL/SET(MENU)] key to access the DSC OPERATION

menu. The INDIVIDUAL and ALL SHIPS CALLS functions can be ac-

cessed from the DSC OPERATION menu.

Press and hold the [CALL/SET(MENU)] key to access the RADIO or

DSC setup menu. The following functions can be accessed in the menu.

[DISTRESS] Key

Used to send a DSC Distress Call. To send the distress call see section

6.2 (Sending a Distress Call).

[UP] and [DOWN] Keys

The [UP] and [DOWN] keys are used to select a desired channel and to

select items in the DSC OPERATION and SETUP menus. The [UP] or

[DOWN] key on the microphone can also be used to select channels.

RADIO SETUP MENU

DSC SETUP MENU

GX1256SPage 20

RAM MIC CONNECTOR

Connects the QUEST+ to the enhanced RAM+ MIC (Remote Access

Microphone). Refer to section 9 RAM+ MIC OPERATION.

ACCESSORY CONNECTION CABLE

Connects the radio to a GPS, and an external speaker.

DC INPUT CABLE

Connects the radio to a DC power supply of 13.8V

ANTENNA JACK

Connects an antenna to the transceiver. Use a marine VHF antenna with

an impedance of 50 ohms.

PTT (Push-To-Talk) SWITCH

Keys the transmitter.

MICROPHONE

Transmits the voice message with reduction of background noise.

[UP()] and [DOWN()] KEYS

The [UP()] and [DOWN()] on the microphone function the same as

the [UP] and [DOWN] key on the front panel of the transceiver.

[16/9] Key

Pressing the [16/9] key Immediately recalls channel 16 from any loca-

tion. Press and hold the [16/9] key to recall channel 9. Pressing the

[16/9] key again will revert the radio to the last channel selected.

GX1256S Page 21

6 BASIC OPERATION

6.1 RECEPTION

1. After the transceiver has been installed, ensure that the power supply

and antenna are properly connected.

2. Press and hold the VOL/PWR knob until the radio turns on.

3. Turn the SQL knob fully counterclockwise. This state is known as “squelch

off”.

4. Turn up the VOL/PWR knob until noise or audio from the speaker is at a

comfortable level.

5. Turn the SQL knob clockwise until the random noise disappears. This

state is known as the “squelch threshold.”

6. Press the [UP] or [DOWN] key to select the desired channel. Refer to the

channel chart on page 60 for available channels.

7. When a message is received, adjust the volume to the desired listening

level. The “BUSY” indicator in the LCD is displayed indicating that the

channel is being used.

6.2 TRANSMISSION

1. Perform steps 1 through 6 of RECEPTION.

2. Before transmitting, monitor the channel to ensure it is clear. THIS IS AN

FCC REQUIREMENT!

3. Press the PTT (push-to-talk) switch. The TX indicator on the LCD is dis-

played.

4. Speak slowly and clearly into the microphone.

5. When the transmission is finished, release the PTT switch.

NOTE

This is a noise-canceling microphone. The oval slot on the bottom of

microphone should be positioned within 1 inch (2.5 cm) from the

mouth for optimum performance.

6.3 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 micro-

phone. 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 trans-

mitting again, the PTT switch must first be released and then pressed again.

GX1256SPage 22

6.4 SIMPLEX/DUPLEX CHANNEL USE

Refer to the VHF MARINE CHANNEL CHART (page 60) 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 op-

eration cannot be altered from simplex to duplex or vice-versa.

6.5 USA, CANADA, AND INTERNATIONAL MODE

1. To change the modes, hold the [16/9] key and press the [WX] key. The

mode changes from USA to International to Canadian with each press of

the [WX] key.

2. “U” will be displayed on the LCD for USA mode, “I” will be displayed for

International mode, and “C” will be displayed for Canadian mode.

3. Refer to the VHF MARINE CHANNEL CHART (page 60) for allocated

channels in each mode.

6.6 NOAA WEATHER CHANNELS

1. To receive a NOAA weather channel, press the [WX] key from any chan-

nel. The transceiver will go to the last selected weather channel.

2. Press the [UP] or [DOWN] key on the microphone or on front panel to

select a different NOAA weather channel.

3. To exit from the NOAA weather channels, press the [WX] key. The trans-

ceiver returns to the channel it was on prior to a weather channel.

GX1256S Page 23

6.7 NOAA WEATHER ALERT

In the event of extreme weather disturbances, such as storms and hurri-

canes, 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. When the Weather Aleart

feature is enabled (see section 8.4 WEATER ALERT), the transceiver is

capable of receiving this alert if the following is performed:

1. Program NOAA weather channels into the transceiver’s memory for scan-

ning. Follow the same procedure as for regular channels under Section

6.15.

2. Press the [SCAN(MEM)] key once to start memory scanning or hold

down the [SCAN(MEM)] key during memory scanning to start priority

scanning.

3. The programmed NOAA weather channels will be scanned along with

the regular-programmed channels. However, scanning will not stop on a

normal weather broadcast unless a NOAA alert is received.

4. 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.

5. Press the [WX] key to stop the alert tone and receive the weather report.

NOTE

If the [WX] key is not pressed the alert tone will be emitted for 5 minutes

and then the weather report will be received.

NOTE

The Weather Aleart feature is also engaged while the transceiver is

received on the one of the NOAA weather channel.

6.8 NOAA WEATHER ALERT TESTING

In the event of a major storm or other appreciable weather condition requir-

ing vessels at sea or other bodies of water to be notified, the NOAA (Na-

tional Oceanographic and Atmospheric Administration) broadcasts a 1050

Hz tone that some marine VHF radios can detect. (Refer to above section

“NOAA WEATER ALERT” on how to use this feature.) This tone, when de-

tected, will produce a loud beep from the radio speaker to signal that a

weather alert is being broadcast.

In order to test this system, the NOAA broadcasts the 1050 Hz tone every

Wednesday, sometime between 11 AM and 1 PM.

GX1256SPage 24

6.9 EMERGENCY (CHANNEL 16 USE)

Channel 16 is known as the Hail and Distress Channel. An emergency may

be defined as a threat to life or property. In such instances, be sure the

transceiver is on and set to CHANNEL 16. Then use the following procedure:

1. Press the microphone push-to-talk switch and say “Mayday, Mayday,

Mayday. This is , , ” (your vessel’s name).

2. Then repeat once: “Mayday, ” (your vessel’s name).

3. Now report your position in latitude/longitude, or by giving a true or mag-

netic bearing (state which) to a well-known landmark such as a naviga-

tion aid or geographic feature such as an island or harbor entry.

4. Explain the nature of your distress (sinking, collision, aground, fire, heart

attack, life-threatening injury, etc.).

5. State the kind of assistance your desire (pumps, medical aid, etc.).

6. Report the number of persons aboard and condition of any injured.

7. Estimate the present seaworthiness and condition of your vessel.

8. Give your vessel’s description: length, design (power or sail), color and

other distinguishing marks. The total transmission should not exceed 1

minute.

9. End the message by saying “OVER”. Release the microphone button

and listen.

10. If there is no answer, repeat the above procedure. If there is still no

response, try another channel.

6.10 CALLING ANOTHER VESSEL (CHANNEL 16 OR 9)

Channel 16 may be used for initial contact (hailing) with another vessel.

However, its most important use is for emergency messages. This channel

must be monitored at all times except when actually using another channel.

It is monitored by the U.S. and Canadian Coast Guards and by other ves-

sels. Use of channel 16 for hailing must be limited to initial contact

only. Calling should not exceed 30 seconds, but may be repeated 3 times at

2-minute intervals. In areas of heavy radio traffic, congestion on channel 16

resulting from its use as a hailing channel can be reduced significantly in

U.S. waters by using channel 9 as the initial contact (hailing) channel for

non-emergency communications. Here, also, calling time should not exceed

30 seconds but may be repeated 3 times at 2-minute intervals.

Prior to making contact with another vessel, refer to the channel charts in

this manual, and select an appropriate channel for communications after

initial contact. For example, Channels 68 and 69 of the U.S. VHF Charts are

GX1256S Page 25

some of the channels available to non-commercial (recreational) boaters.

Monitor your desired channel in advance to make sure you will not be inter-

rupting other traffic, and then go back to either channel 16 or 9 for your initial

contact.

When the hailing channel (16 or 9) is clear, state the name of the other

vessel you wish to call and then “this is” followed by the name of your

vessel and your Station License (Call Sign). When the other vessel returns

your call, immediately request another channel by saying “go to,” the num-

ber of the other channel, and “over.” Then switch to the new channel. When

the new channel is not busy, call the other vessel.

After a transmission, say “over,” and release the microphone’s push-to-talk

(PTT) switch. When all communication with the other vessel is completed,

end the last transmission by stating your Call Sign and the word “out.” Note

that it is not necessary to state your Call Sign with each transmission, only

at the beginning and end of the contact.

Remember to return to Channel 16 when not using another channel.

6.11 MAKING TELEPHONE CALLS

To make a radiotelephone call, use a channel designated for this purpose,

The fastest way to learn which channels are used for radiotelephone traffic

is to ask at a local marina. Channels available for such traffic are designated

Public Correspondence channels on the channel charts in this manual.

Some examples for USA use are Channels 24, 25, 26, 27, 28, 84, 85, 86,

and 87. Call the marine operator and identify yourself by your vessel’s name,

The marine operator will then ask you how you will pay for the call (tele-

phone credit card, collect, etc.) and then link your radio transmission to the

telephone lines.

The marine telephone company managing the VHF channel you are using

may charge a link-up fee in addition to the cost of the call.

6.12 OPERATING ON CHANNELS 13 AND 67

Channel 13 is used at docks and bridges and by vessels maneuvering in

port. Messages on this channel must concern navigation only, such as meet-

ing and passing in restricted waters.

Channel 67 is used for navigational traffic between vessels.

By regulation, power is normally limited to 1 Watt on these channels. Your

GX1256SPage 26

radio is programmed to automatically reduce power to this limit on these

channels. However, in certain situations it may be necessary to temporarily

use a higher power. See page 18 ([H/L(POS)] key) for means to temporarily

override the low-power limit on these two channels.

6.13 PROHIBITED COMMUNICATIONS

The FCC prohibits the following communications:

• False distress or emergency messages:

• Messages to “any boat” except in emergencies and radio tests;

• Messages to or from a vessel on land;

• Transmission while on land;

• Obscene, indecent, or profane language (potential fine of $10,000).

6.14 DUAL WATCH (TO CH16)

1. Adjust the SQL knob until the background noise disappears.

2. Select the channel you wish to dual watch to Ch16.

3. Press the [DW(IC)] key. The display will scan between CH16 and the

channel that was selected in step 2.

If a transmission is received on the channel selected in

step 2, the QUEST+ will dual watch to Ch16.

4. To stop Dual Watch press the [DW(IC)] key again.

6.15 MEMORY SCANNING (M-SCAN)

NOTE

• During scanning, the dot matrix area of the LCD will show M-SCAN or

P-SCAN depending on the scan mode selected.

• If GPS position is displayed this icon will be hidden.

1. Adjust the SQL knob until background noise disappears.

2. Select a desired channel to be scanned using the [UP] or [DOWN] key.

Press and hold the [SCAN(MEM)] key, “MEM” will ap-

pear on the LCD which indicates the channel has been

programmed into the transceivers memory.

3. Repeat step 2 for all the desired channels to be scanned.

4. To DELETE a channel from the transceiver’s memory,

press and hold the [SCAN(MEM)] key, “MEM” will disappear in the LCD.

5. To start scanning, press the [SCAN(MEM)] key. Scan-

ning will proceed from the lowest to the highest pro-

grammed channel number and will stop on a channel

when a transmission is received.

GX1256S Page 27

(Latitude) (Longitude)

(No GPS Signal)

6. The channel number will blink during reception.

7. To stop scanning, press the [SCAN(MEM)], [16/9], [WX], or PTT key.

6.16 PRIORITY SCANNING (P-SCAN)

1. The priority channel is set to channel 16.

2. For priority scanning during M-SCAN, press and hold

the [SCAN(MEM)] key, until P-SCAN appears in the LCD.

Scanning will proceed between the memorized chan-

nels and the priority channel. The priority channel will

be scanned after each programmed channel.

: When DSC Scanning method is enabled. Default is DSC scan is ON.

3. The scanning will be performed while receiving the MEM

CH (memorized channel).

4. To stop scanning, press the [SCAN(MEM)], [16/9], [WX],

or PTT key.

NOTE

Triple watch (T/W) means the radio is watching CH70 for DSC Calls.

Dual watch (D/W) means the radio is not watching CH70 for DSC Calls.

6.17 POSITION INDICATION

The transceiver has the ability to display the vessel’s position (LAT/LON) for

Confirmation of the data, if connected to a GPS receiver.

1. Press and hold the [H/L(POS)] key, dis-

plays “LAT” and “LON” information al-

ternately every two seconds.

If the GPS receiver receives no signal,

the display will be as shown in the illus-

tration.

2. To hide the position information, press and hold the

[H/L(POS)] key again.

MEM CH. CH. 16 CH. 70 MEM CH. CH. 16 CH. 70

GX1256SPage 28

6.18 TIME INDICATION

Press and hold the [16/9] and [H/L(POS)] keys while turn-

ing the transceiver on, the transceiver will display the TIME

on the upper side, if connected to a GPS receiver.

NOTE

The TIME OFFSET should be set to local time in the DSC/RADIO setup

mode when the radio is connected the GPS navigation receiver. To ad-

just TIME OFFSET to your local time, refer to section 7.6 TIME OFF-

SET.

6.19 RESETTING THE TRANSCEIVER’S MICROPROCESSOR

Resetting the microprocessor restores the initial, factory supplied conditions

in the transceiver. These are called the default conditions.

To reset the microprocessor, first turn the transceiver off. Then while press-

ing the [WX] and [SCAN(MEM)] keys, turn the transceiver on. The default

conditions are:

• No channels in SCAN memory.

• Channel 16 will be selected when the transceiver is turned on.

• WX channel 01 will be recalled when the [WX] key is pressed.

• Key beep will be on.

NOTE

Resetting the microprocessor will not erase DSC MMSI and Directory

information.

GX1256S Page 29

7 DIGITAL SELECTIVE CALLING

7.1 GENERAL

WARNING

This radio is designed to generate a digital maritime distress and safety

call to facilitate search and rescue. To be effective as a safety device,

this equipment must be used only within communication range of a shore-

based VHF marine channel 70 distress and safety watch system. The

range of signal may vary but under normal conditions should be ap-

proximately 20 nautical miles.

Digital Selective Calling is a semi-automated method of establishing a radio

call, it has been designated by the International Maritime Organization (IMO)

as an international standard for establishing VHF, MF and HF radio calls. It

had also been designated as part of the Global Maritime Distress and Safety

System (GMDSS). It is planned that DSC will eventually replace aural watches

on distress frequencies and will be used to announce routine and urgent

maritime safety information broadcasts.

This new system will allow mariners to instantly send a distress call with

GPS position (when connected to the transceiver) to the US Coast Guard

and other vessels within range of the transmission. DSC will also allow mari-

ners to initiate or receive distress, urgency, safety routine, POS Request,

POS Send and Group calls to or from another vessel equipped with a DSC

transceiver.

WARNING STICKER

A DSC Warning sticker is in-

cluded with the QUEST+. To

comply with FCC regula-

tions this sticker must be

mounted in a location that

can be easily viewed from

the location of the QUEST+.

Make sure the chosen loca-

tion is clean and dry before

applying the sticker.

WARNING

STICKER

CALL

SET

SCAN H/L

GX1256SPage 30

7.2 DSC SCAN

When the radio is shipped from the factory it is programmed so CH70 (the

DSC channel) is scanned at all times. There is a selection in the SETUP

MENU to disable the DSC SCAN. However, turning off DSC SCAN will dis-

able the radio from receiving DSC calls i.e.: Individual Call, All Ships Call,

Distress Call and Position Requests. If you want to use any of the functions

the selection must be left ON.

To Change DSC SCAN Method:

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [DOWN] key to select “DSC SETUP.”

3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select “DSC SCAN.”

4. Press the [CALL/SET(MENU)] key to enable setting this

item (The number in the display will flash).

5. Press the [UP] or [DOWN] key to select “on” or “oF (off).”

6. Press the [CALL/SET(MENU)] key to store the selected

setting.

7. Press the [UP] or [DOWN] key to select “EXIT,” then

press the [CALL/SET(MENU)] key.

8. Press the [UP] or [DOWN] key to select “EXIT,” then

press the [CALL/SET(MENU)] key to return to the nor-

mal operation.

GX1256S Page 31

7.3 USCG DSC WATCH

The USCG has plans to upgrade its VHF National Distress System (expected

by 2005), so at the time of printing only larger vessels that are required to

carry VHF DSC radios will be able to hear your distress transmission.

7.3.1 Maritime Mobile Service Identity (MMSI)

What is an MMSI?

An MMSI is a nine digit number used on Marine Transceivers capable of

using Digital Selective Calling (DSC). This number is used like a telephone

number to selectively call other vessels.

NOTE

THIS NUMBER MUST BE PROGRAMMED INTO THE RADIO TO OP-

ERATE THE QUEST+ DSC FUCTIONS.

How can I obtain an MMSI assignment?

Boat US offers free MMSI numbers. Visit the following to register:

http://www.boatus.com/mmsi/.

7.3.2 Programming the MMSI

NOTE

User MMSI can be input only twice. If the user tries to input MMSI more

than twice, the radio will show the display on the right.

If the user needs to change the MMSI more than twice,

the transceiver will have to be sent to Factory Service.

Refer to the section 10.2 FACTORY SERVICE.

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [DOWN] key to select “DSC SET.”

3. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select “USER MMSI.”

4. Press the [CALL/SET(MENU)] key to enable setting this

item (The number in the display will flash).

5. Press the [UP] or [DOWN] key to select first number of

your MMSI, then press the [CALL/SET(MENU)] key to

define the setting.

6. Repeat above step to set your MMSI (up to 9 digits).

When the last number of your MMSI is in place, press

and hold the [CALL/SET(MENU)] key to store your MMSI.

GX1256SPage 32

7. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key.

8. Press the [UP] or [DOWN] key to select “EXIT,” then

press the [CALL/SET(MENU)] key to return to the nor-

mal operation.

7.4 ADDITIONAL DIGITAL SELECTIVE CALLING INFORMATION

For additional information the USCG has an excellent site that should be

visited at www.navcen.uscg.mil/marcoms/gmdss/dsc.html.

7.5 DSC DISTRESS CALL

The QUEST+ is capable of transmitting and receiving DSC Distress mes-

sages to all DSC radios. The QUEST+ may be connected to a GPS to also

transmit the Latitude, Longitude of the vessel.

7.5.1 Transmitting A DSC Distress Call

NOTE

To be able to transmit a DSC distress call a MMSI number must be

programmed, refer to section 7.3.2 Programming the MMSI

In order for your ships location to be transmitted a GPS must be connected

to the QUEST+, refer to section 4.4 CONNECTION OF GPS WITH NMEA

OUTPUT.

1. Lift the red spring loaded DISTRESS cover and press

the [DISTRESS] key. The “DISTRESS” will appear on

the LCD.

2. Press and hold the [DISTRESS] key. The LCD will count

down (3, 2, 1) following this the QUEST+ will transmit

the Distress Call.

3. When the distress signal is sent, the “TX” icon will ap-

pear on the LCD. After the message has been sent, the

Distress Alarm will sound.

4. The transceiver “shadow-watches” for a transmission

between CH16 and CH70 until an acknowledgment sig-

nal is received. “RECEIVED ACK” will scroll on the LCD.

GX1256S Page 33

5. If no acknowledgment is received, the distress call is repeated in 3.5 to

4.5 minute intervals until an acknowledgment is received.

6. To cancel a Distress Call

1) Press the [16/9] key

2) Press the [WX] key

3) Turn off the radio

4) Press the [DISTRESS] key, then press the [UP] or [DOWN] key until

“CANCEL” is shown on the LCD. Press the [CALL/SET(MENU)] key.

7. When a distress acknowledgment is received, a distress alarm sounds

and channel 16 is automatically selected.

8. To cancel the alarm, press any key.

NOTE

If the radio is receiving on a working channel or transmitting on a work-

ing channel, DSC calls will not be received.

7.5.2 Receiving a distress call

1. A distress call is received. “RECEIVED DISTRESS” will

appear on the LCD, and an emergency alarm will be heard.

Channel 16 is automatically selected.

2. Press any key to stop the alarm.

3. Press the [UP] or [DOWN] key to select the receiving

distress data:

• MMSI or Station Name • TIME (UTC)

• Latitude • Longitude

NOTE

• If the received distress data does not include the position data, “NO

POSITION DATA” will scroll on the LCD.

• You must continue monitoring channel 16 as a coast station may re-

quire assistance in any rescue attempt.

GX1256SPage 34

7.5.3 Receiving a distress relay call

1. A distress relay call is received. “RECEIVED RLY” will

appear on the LCD, and an emergency alarm will be

heard.

Channel 16 is automatically selected.

2. Press any key to stop the alarm.

3. Press the [DOWN] key to appear the receiving distress

data (MMSI or Station Name).

NOTE

You must continue monitoring channel 16 as a coast station may re-

quire assistance in any rescue attempt.

7.6 ALL SHIPS CALL

The All Ships Call function allows contact to be established with other vessel

stations without having their ID in the individual calling directory.

Also, priority for the call can be designated as Urgency, Safety or Routine.

URGENCY Call: This type of call is used when a vessel may not truly be in

distress, but have a potential problem that may lead to a

distress situation (PAN, PAN,Call Type).

SAFETY Call: Used to transmit boating safety information to other ves-

sels (Security Call Type).

This message usually contains information about an overdue boat, debris in

the water. Loss of a navigation aid or an important meteorological message.

7.6.1 Transmitting An All Ships Call

1. Select the traffic channel (for voice communication).

2. Press the [CALL/SET(MENU)] key.

3. Press the [DOWN] key to select “ALL SHIPS.”

4. Press the [CALL/SET(MENU)] key again.

5. Press the [DOWN] key to select the nature of call (“UR-

GENCY,” or “SAFETY”).

6. Press the [CALL/SET(MENU)] key to transmit the se-

lected type of ALL SHIPS DSC call.

7. After the ALL SHIPS CALL is transmitted, the transceiver

will wait on CH16. Call has been transmited.

GX1256S Page 35

7.6.2 Receiving An All Ships Call

1. An all ships call is received. “RECEIVED ALL SHIPS”

will appear on the LCD, and an emergency alarm will be

heard.

Channel 16 is automatically selected.

2. Press any key to stop the alarm.

3. Press the [UP] or [DOWN] key to select the receiving

distress data:

• MMSI or Station Name

4. Monitor channel 16 or traffic channel until the communi-

cation is completed.

7.7 INDIVIDUAL CALL

This feature allows the user to contact another user vessel with a DSC radio

and automatically switch the receiving DSC radio to a desired working chan-

nel. This feature is similar to calling a vessel on CH16 and requesting to go

to a another channel.

7.7.1 Setting up the Individual / Position Call Directory

The QUEST+ has a DSC directory that allows you to store a vessel or per-

son names and the MMSI number associated with vessels you wish to trans-

mit Individual calls, Position Requests and Position Send transmissions.

To transmit an Individual call you must program this directory with informa-

tion of the persons you wish to call, similar to a cellular phones telephone

directory.

1. Press and hold down the [CALL/

SET(MENU)] key until “RADIO SETUP”

appears.

2. Press the [DOWN] key to select “DSC

SETUP”.

3. Press the [CALL/SET(MENU)] key to

select “INDIVIDUAL DIRECTORY.”

4. Press the [CALL/SET(MENU)] key to

select “ADD.”

5. Press the [CALL/SET(MENU)] key to enable setting this

item.

6. Press the [UP] or [DOWN] key to select a first character

of the Station Name, then press the [CALL/SET(MENU)]

GX1256SPage 36

key to move to next character.

7. Repeat step 6 as many times as necessary to complete

the Station Name (up to 12 characters).

8. Press and hold the [CALL/SET(MENU)] key to store the

Station Name and enable setting the MMSI ID code.

9. Press the [UP] or [DOWN] key to select the first digit of

the MMSI ID code, the press the [CALL/SET(MENU)]

key to move to next character.

10. Repeat step 9 as many times as necessary to complete

the MMSI ID code (9 digits).

11. Press and hold the [CALL/SET(MENU)] key to store the

MMSI ID code.

12. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key.

13. Press the UP or [DOWN] key to select “EXIT,” then press

the [CALL/SET(MENU)] key to return to the normal op-

eration.

7.7.2 Setting up Individual Reply

Allows setting up the radio to automatically (default setting) or manually

respond to a DSC Individual call requesting you to switch to a working chan-

nel for voice communications. When Manual is selected the MMSI of the

calling vessel is shown allowing you to see who is calling. This function is

similar to caller id on a cellular phone.

1. Press and hold down the [CALL/SET(MENU)] key until “RADIO SETUP”

appears.

2. Press the[DOWN] key to select “DSC

SETUP.”

3. Press the [CALL/SET(MENU)] key, then

press the [UP] or [DOWN] key to select

“INDIVIDUAL REPLY.”

4. Press the [CALL/SET(MENU)] key to enable setting this

item.

5. Press the [UP] or [DOWN] key to select “AU (Automatic)”

or “oF (off).”

6. Press the [CALL/SET(MENU)] key to store the selected

setting.

7. Press the [UP] or [DOWN] key to select “EXIT,” then

GX1256S Page 37

press the [CALL/SET(MENU)] key.

8. Press the [UP] or [DOWN] key to select “EXIT,” then

press the [CALL/SET(MENU)] key to return to the nor-

mal operation.

7.7.3 Setting up Individual Call Ringer

When a Individual call is received the radio will produce a ringing tone for 3

minutes. This selection allows the Individual Call ringer time to be changed.

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [DOWN] key to select “DSC SETUP.”

3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select “INDIVIDUAL RINGER.”

4. Press the [CALL/SET(MENU)] key to enable setting this

item.

5. Press the [UP] or [DOWN] key to select ringing time of a

INDIVIDUAL CALL.

4:3 minutes continuously

3:15 times

2:10 times

1:5 times

6. Press the [CALL/SET(MENU)] key to store the selected

ringing time.

7. Press the [UP] or [DOWN] key to select “EXIT,” then

press the [CALL/SET(MENU)] key.

8. Press the [UP] or [DOWN] key to select “EXIT,” then

press the [CALL/SET(MENU)] key to return to the nor-

mal operation.

7.7.4 Transmitting an Individual Call

This feature allows the user to contact another vessel with a DSC radio. This

feature is similar to calling a vessel on CH16 and requesting to go to an-

other channel. Select the traffic channel for voice communication.

1. Select the traffic channel for voice communication.

2. Press the [CALL/SET(MENU)] key.

3. Press the [CALL/SET(MENU)] key again. The individual

address will appear.

4. Press the [UP] or [DOWN] key to select the individual you want to con-

GX1256SPage 38

tact.

5. To cancel, if needed, press the [UP] or [DOWN] key un-

til the “EXIT” icon appear. Then press the [CALL/

SET(MENU)] key. This procedure can be also canceled

by pressing the WX or 16/9 key.

6. Press the [CALL/SET(MENU)] key to transmit the individual DSC signal.

7. After an INDIVIDUAL CALL is transmitted, the transceiver will wait 8 sec-

onds for the acknowledgment. If the reply signal is not received, the

transceiver will transmit again.

8. After the second INDIVIDUAL CALL is transmitted, if the

reply signal is not received, “NO REPLY” icon will ap-

pear on the LCD to prompt the user to send the call

again or exit the mode.

9. When an individual call acknowledgment “able to com-

ply” is received, the established channel is automatically selected and

an alarm sounds.

10. When an individual call acknowledgment with “unable to comply” is re-

ceived, the established channel is automatically selected.

7.7.5 Receiving an Individual Call

When receiving an individual call, an acknowledgment must be sent back to

the calling station. Please refer to a selection in the 7.2.2 “Setting up Indi-

vidual Reply” that allows the acknowledgment to be transmitted manually or

automatically.

Automatic Reply:

1. An individual call is received. “RECEIVED INDIVIDUAL” will appear on

the LCD, and an individual call alarm sounds. Then the

radio automatically switches to the requested channel.

2. Press any key to stop the alarm, then acknowledgment

is transmitted automatically.

3. Press the PTT on the microphone and talk to the calling ship.

Manual Reply:

1. An individual call is received. “RECEIVED INDIVIDUAL”

will appear on the LCD, and an individual call alarm

sounds. Then the radio automatically switches to the

requested channel.

2. Press any key to stop the alarm.

GX1256S Page 39

3. Select type of reply function “ABLE” or “UNABLE” by

using the [UP] or [DOWN] key. In the Automatic mode,

the acknowledgment is transmitted automatically.

4. Press the PTT on the microphone and talk to the calling

ship.

7.7.6 Setting Up the Call Waiting Function

Allows the QUEST+ to be setup to reply (ABLE) or set the radio so it trans-

mits a call that advises to the vessel the person is UNABLE to reply to the

call at this time. This function is similar to a answering machine. When set

up in UNABLE and a individual call is received the Individual call from the

other vessel is logged in the CALL WAITING directory for you to review and

call back at a later time.

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [DOWN] key to select “DSC SETUP.”

3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select “INDIVIDUAL ACK.”

4. Press the [CALL/SET(MENU)] key to enable setting this

item.

5. Press the [UP] or [DOWN] key to select “Ab (Able)” or

“Un (Unable).”

6. Press the [CALL/SET(MENU)] key to store the selected

setting.

7. Press the [UP] or [DOWN] key to select “EXIT,” then

press the [CALL/SET(MENU)] key.

8. Press the [UP] or [DOWN] key to select “EXIT,” then

press the [CALL/SET(MENU)] key to return to the nor-

mal operation.

GX1256SPage 40

7.8 ADVANCED DSC CALLS

7.8.1 Group Call

This feature allows the user to contact a group of specific vessels (example

members of a yacht club) using DSC radios with Group call function to auto-

matically switch to a desired channel for voice communications.

7.8.1.1 Setup a Group Call

For this function to operate the same Group MMSI must be programmed

into all the DSC VHF radios within the group of vessels that will be using this

feature. The group MMSI is a 9 digit (first digit permanently set to “0”) that

will allow other radios to call your vessel along with others to automatically

switch to a working channel for voice communications. This function is very

useful for yacht clubs and vessels traveling together that want to collectively

make announcements on a predetermined channel.

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [DOWN] key to select “DSC SETUP.”

3. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select “GROUP DIR.”

4. Press the [CALL/SET(MENU)] key to enable setting this

item.

5. Press the [UP] or [DOWN] key to select “ADD,” then

press the [CALL/SET(MENU)] key.

6. Press the [UP] or [DOWN] key to select the first letter of

the name of the group you want to reference in the di-

rectory.

7. Press the [CALL/SET(MENU)] key to store the first let-

ter in the name. Press the [CALL/SET(MENU)] key to

move the cursor one space to the right.

8. Repeat step 6 and 7 until the name is complete. The

name can consist of up to eleven characters, if you do

not use all eleven characters press the [CALL/

SET(MENU)] key to move to the next space. This method

can also be used to enter a blank space in the name. To

clear the previous letter, press the [H/L(POS)] key.

9. After the eleventh letter or space has been entered, press

and hold the [CALL/SET(MENU)] key to advance to the

GROUP MMSI (Maritime Mobile Service Identity Num-

GX1256S Page 41

ber) number entry.

10. Press the [UP] or [DOWN] key to scroll through num-

bers, 0-9.

11. To enter the desired number and move one space to

the right press the [CALL/SET(MENU)] key. Repeat pro-

cedure until all nine spaces of MMSI number are en-

tered.

12. If a mistake was made entering in the name or the MMSI

number repeat pressing the [CALL/SET(MENU)] key

until the wrong character is selected, then press the [UP]

or [DOWN] key to correct the entry.

13. To store the data entered, press and hold the [CALL/

SET(MENU)] key.

14. To enter another individual address, repeat steps 4 through 13.

15. To exit this menu and return to radio operation mode press the [16/9]

key.

7.8.1.2 Transmitting a Group Call

1. Select the desired channel to use Group Call for voice

communications.

2. Press the [CALL/SET(MENU)] key.

3. Press the [DOWN] key to select “GROUP.” (To cancel,

select “EXIT” with the [UP] or [DOWN] key or press [16/

9] key.)

4. Press the [CALL/SET(MENU)] key to enable setting this

item.

5. Press the [UP] or [DOWN] key to select the “Group” you

want to contact.

6. Press the [CALL/SET(MENU)] key to transmit the Group

Call signal.

7. When the Group Call signal is sent, the LCD will be as

shown in the illustration at the right.

8. After the GROUP CALL is transmitted, all the radios in

the group will switch to the designated channel.

9. Listen to the channel to make sure it is not busy, then

key the microphone and call the other vessels you de-

sire to communicate with.

GX1256SPage 42

7.8.1.3 Receiving a Group Call

1. When a group call is received, the QUEST+ will produce a ringing alarm

sound.

2. The radio automatically switches to the requested channel.

3. Press any key to stop the alarm.

4. Monitor the channel for the person calling the Group for a message.

5. If you want to respond, monitor the channel to make sure it is clear, then

press the PTT on the mic and talk to the calling ship(s).

NOTE

After a Group call is received, the time the call was made and the ships

MMSI or vessels name will appear on the LCD.

7.8.2 Position Request

Advancements in DSC have made it possible to poll the location of another

vessel and show the position of that vessel on the display of the QUEST+.

Standard Horizon has taken this feature one step further, if any Standard

Horizon GPS is connected to the QUEST+, the polled position of the vessel

is shown on the display of the GPS chart plotter making it easy to navigate

to the location of the polled vessel. This is a great feature for anyone want-

ing to know the position of another vessel. For example you buddy that is

catching fish, or finding the location of a person you are cruising with.

NOTE

The other vessel must have an operating GPS receiver connected to its

DSC transceiver and must not have its transceiver set to deny position

requests. (Refer the section 7.7.1 to enter information into the indi-

vidual directory).

GX1256S Page 43

7.8.2.1 Setting up Position Reply

The QUEST+ can be set up to automatically or manually send your position

to another vessel. This selection is important if you are concerned about

someone polling the position of your vessel that you may not want to. In the

manual mode you will see the MMSI or persons name shown on the display

allowing you to choose to send your position to the requesting vessel.

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [DOWN] key to select “DSC SETUP.”

3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select “POS REPLY.”

4. Press the [CALL/SET(MENU)] key to enable setting this

item.

5. Press the [UP] or [DOWN] key to select “AU (Automatic)”

or “oF (off).” In “AU” mode, after a DSC POS Request is

received, the radio will automatically transmit your ves-

sels position. In “oF” mode, the display of the QUEST+

will show who is requesting the position.

6. Press the [CALL/SET(MENU)] key to store the selected

setting.

7. To exit this menu and return to radio operation mode press

the [16/9] key.

7.8.2.2 Transmitting a Position Request to Another Vessel

NOTE

To transmit a Position Request, you must setup the QUEST+ DSC Indi-

vidual / Position Call Directory with the name of the vessel(s) or person

and the MMSI of the DSC radio you wish to poll. To setup this directory

refer to section 7.7.1 Setting up the Individual / Position Call Directory

1. Press the [CALL/SET(MENU)] key.

2. Press the [DOWN] key to select “POS REQUEST.”

3. Press the [CALL/SET(MENU)] key to show the Individual

Directory.

4. Press the [UP] or [DOWN] to select a name.

5. Press the [CALL/SET(MENU)] key to transmit the posi-

tion request DSC call.

6. After a DSC position request is transmitted, the trans-

GX1256SPage 44

ceiver remains on channel 70 until position data is re-

ceived from the polled vessel.

7. When the QUEST+ receives the position from the polled

vessel it is shown on the radio display and also trans-

ferred to the GPS Chart plotter.

8. If the QUEST+ does not receive a reply, the LCD will

display “NO REPLY.” Press the [DOWN] key and select

“SEND” to transmit the call again or “EXIT” to exit the

Position Request mode.

NOTE

If the QUEST+ does not receive position data from the polled vessel,

the LCD will show “NO POSITION DATA.”

7.8.2.3 Receiving a Position Request

When a position request call is received from another vessel, a ringing alarm

will sound and POS REQUEST will be show in the LCD. Operation and

transceiver function differs depending on “POS REPLY” in the “DSC SETUP”

menu setting.

Automatically reply:

1. When a position request call is received, a calling alarm sounds 4 times.

Then requested position coordinates are transmitted

automatically to the vessel requesting your vessels po-

sition.

2. To exit from position request display, press any key.

Manually reply:

1. When a position request call is received, “RECEIVED POS REQUEST”

will appear on the LCD, and a calling alarm will sound.

2. Press the any key to disable the calling alarm.

3. Select type of reply function “ABLE” or “EXIT” by using

the [UP] or [DOWN] key.

4. When “ABLE” is selected, press the [CALL/SET(MENU)]

key. And the requested position coordinates will be trans-

mitted.

5. To exit from position request display, press any key.

GX1256S Page 45

7.8.3 Position Send

The feature is similar to Position Request, however instead of requesting a

position of another vessel this function allows you to send your position to

another vessel. Your vessel must have an operating GPS receiver connected

for the QUEST+ to send the position.

NOTE

To transmit a Position Send Call, you must setup the QUEST+ DSC

Individual / Position Call Directory with the name of the vessel(s) or

person and the MMSI of the DSC radio you wish to send your position

to. To setup this directory refer to section 7.7.1 Setting up the Individual

/ Position Call Directory.

7.8.3.1 Transmitting a DSC Position Send Call

1. Press the [CALL/SET(MENU)] key.

2. Press the [DOWN] key to select the “POS SEND.”

3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select a name in the directory.

4. Press the [CALL/SET(MENU)] key to send your posi-

tion to the selected vessel.

7.8.3.2 Receiving a DSC Position Send Call

When another vessel transmits their vessels location to the QUEST+ the

following will happen:

1. A ringing sound will be produced when the call is received.

2. Press the [16/9] key to stop ringing

3. The position from the vessel sending it's position will be shown on the

display of the radio and also transferred to any Standard Horizon GPS

Chart plotter if connected.

GX1256SPage 46

7.8.4 Receiving a geographical area call

1. When a geographical call is received, “RECEIVED GEO-

GRAPHIC” will appear on the LCD, and an emergency

alarm will be heard (different from DISTRESS). Then

the requested channel from the other ship is automati-

cally selected.

2. Press any key to stop the alarm.

3. Press the UP or DOWN key to select the receiving dis-

tress data:

• MMSI or Station Name

4. Monitor the traffic channel for an announcement from

the calling ship or shore station.

GX1256S Page 47

8. RADIO SETUP MODE

8.1 LAMP ADJUSTING

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [CALL/SET(MENU)] key to select “LAMP.”

3. Press the [CALL/SET(MENU)] key to enable adjusting

this item (The number in the display will flash).

4. Press the [UP] or [DOWN] key to select the desired level.

3:High

2:Mid

1: Low

0:OFF

5. Press the [CALL/SET(MENU)] key to store the selected

level.

6. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key.

7. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key to return to the normal opera-

tion.

8.2 LCD CONTRAST ADJUSTING

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select “CONTRAST.”

3. Press the [CALL/SET(MENU)] key to enable adjusting

this item (The number in the display will flash).

4. Press the [UP] or [DOWN] key to adjust the contrast.

Available values are 7 “dark” through 0 “light.”

5. Press the [CALL/SET(MENU)] key to store the selected

level.

6. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key.

7. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key to return to the normal opera-

tion.

GX1256SPage 48

8.3 KEY BEEP (ON or OFF)

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select “KEY BEEP.”

3. Press the [CALL/SET(MENU)] key to enable adjusting

this item (The number in the display will flash).

4. Press the [UP] or [DOWN] key to select “on” or “oF (off).”

5. Press the [CALL/SET(MENU)] key to store the selected

setting.

6. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key.

7. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key to return to the normal opera-

tion.

8.4 WEATHER ALERT (ON or OFF)

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select “WX ALT.”

3. Press the [CALL/SET(MENU)] key to enable adjusting

this item (The number in the display will flash).

4. Press the [UP] or [DOWN] key to select “on” or “oF (off).”

5. Press the [CALL/SET(MENU)] key to store the selected

setting.

6. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key.

7. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key to return to the normal opera-

tion.

GX1256S Page 49

8.5 CHANNEL NAME CHANGE

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select “CH NAME.”

3. Press the [CALL/SET(MENU)] key, then press the [UP]

or [DOWN] key to select the channel on which you wish

to change a name.

4. Press the [CALL/SET(MENU)] key to enable adjusting

this item.

5. Press the [UP] or [DOWN] key to select the first charac-

ter (letter, number, or symbol) in the name you wish to

store, the press the [CALL/SET(MENU)] key to move to

the next character.

6. If you make a mistake, press the [H/L(POS)] key to move

back, then re-select the correct letter, number, or sym-

bol.

7. Repeat step 5 as many times as necessary to complete

the name tag (up to 12 characters).

8. Press and hold the [CALL/SET(MENU)] key to store the

new name.

9. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key.

10. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key to return to the normal opera-

tion.

GX1256SPage 50

8.6 TIME OFFSET

Sets the time difference between local time and UTC (Universal Time Coor-

dinated or GMT Greenwich Mean Time). Time is displayed if the QUEST+ is

connected to a GPS receiver.

1. Press and hold down the [CALL/SET(MENU)] key until

“RADIO SETUP” appears.

2. Press the [CALL/SET(MENU)] key, then press the

[DOWN] key to select “TIME.”

3. Press the [CALL/SET(MENU)] key to enable adjusting

this item (The number in the display will flash).

4. Press the [UP] or [DOWN] key to select “Time Offset”

from UTC. Be sure that when selecting the offset that

the display shows “TIME –” for negative offset, or

“TIME +” for a positive offset. Refer to Offset Time Table.

See illustration below to find your offset time from UTC.

If 0:0 is assigned, the time is the same as UTC.

6. Press the [CALL/SET(MENU)] key to store the time off-

set.

7. Press the [DOWN] key to select “EXIT,” then press the

[CALL/SET(MENU)] key.

8. Press the [DOWN] key to select “EXIT,” then press the [CALL/

SET(MENU)] key to return to the normal operation.

NOTE

During Daylight Saving time subtract 1 hour from the offset shown above

and enter this offset in step 4 above.

OFFSET TIME TABLE

GX1256S Page 51

9 RAM+ MIC OPERATION

If the enhanced optional RAM+ Mic (CMP25) is connected to the remote

microphone connector on the transceiver’s rear panel, the transceiver can

use the remote control operation except for a few functions. The RAM+ Mic

supplied with 23 feet (7 m) of routing cable and can be extended up to 70

feet (21 m) using three 23 feet extension cables model CT-100. The inter-

com operation can be used between the RAM+ Mic and the transceiver.

9.1 RAM+ MIC CONTROLS

SQUELCH CONTROL (SQL)

Activates the squelch adjusting mode.

Press this key to activate the squelch adjusting mode. Press the

microphone’s [] or [] key to adjust the squelch.

When [] key is pressed and held down for 1 second or more, the squelch

is turned off.

SCAN DW

NAV

CALL

SET

MEM IC

U.I.C

GX1256SPage 52

VOLUME KEY (VOL)

Activates the volume adjusting mode.

Press this key to activate the volume adjusting mode. Press the

microphone’s [] or [] to adjust the volume.

POWER SWITCH (PWR)

Press and hold down this key to turn to the transceiver and RAM+ Mic on

and off.

PTT (Push-To-Talk) SWITCH

Activates transmission.

[H/L] KEY

Toggles between high and low power. When the [H/L] key is pressed

while the transceiver is on channel 13 or 67, the power will temporarily

switch from LO to HI power until the PTT is released. The [H/L] key does

not function on transmit inhibited and low power only channels.

[](UP)/[](DOWN) KEY

These keys are used to select channels, adjusts the volume and squelch

level, and to choose the item selection of different functions (such as the

DSC operation). In many ways, these keys emulate the function of the

transceiver’s CHANNEL selector knob.

[16/9] KEY

Immediately recalls channel 16 from any channel location. Holding down

this key recalls channel 9. Pressing the [16/9] key reverts to the previous

selected working channel.

Secondary use

Please see secondary use for the [WX] and [MEM] key.

KEY PAD

[SCAN] Key

1. Starts and stops scanning of programmed channels.

2. If held while the [UP()] or [DOWN()] key on the microphone are

pressed, the radio will show the channels programmed in scan

memory. This function will not work if the unit is scanning.

NOTE: The priority channel is channel 16 only.

GX1256S Page 53

[CALL/SET] Key

The [CALL/SET] key functions as the enter key.

Secondary use

Press the [CALL/SET] key to access the DSC OPERATION menu.

Press and hold the [CALL/SET] key to access the SETUP menu.

[DW] Key

Watches for a transmission on CH16 and another selected channel until

either signal is received. (Dual watch)

NOTE: When the DSC SCANNING feature is enabled (see section 7.15

DSC SCAN), the radio watches for a transmission on CH16, another

selected channel, and CH70 until either signal is received (Triple watch).

Secondary use

Press and hold [DW] key, intercom operation will operate between radio

and RAM Mic.

[NAV] Key

Press and hold this key, when connected to the GPS receiver, the LCD

displays Position Data from the GPS.

[WX] Key

Immediately recalls the previously selected NOAA weather channel from

any channel location.

Secondary use

Holding down the [16/9] key while pressing the [WX] key changes the

mode from USA to International or Canadian.

NOTE: If position is displayed, this icon will be hidden.

[DISTRESS] KEY

Used to send a DSC Distress Call. To send the distress call:

1. Lift the red rubber cover.

2. Press and hold the Red button. The RAM+ display will

count down (3-2-1) and then transmit the Distress call.

3. When the distress signal is sent, Ch70 and “TX” icon

will appear on the LCD. After the message has been

sent, the radio will sound a Distress Alarm.

4. The transceiver “shadow-watches” for a transmission

on CH16 or CH70 until an acknowledgment signal is

received. “DISTRESS” and “WAITING” will appear on

the LCD.

GX1256SPage 54

5. If an acknowledgement is received, select channel 16

and advise your distress situation.

6. If no acknowledgment is received, the distress call is

repeated in 4 minute intervals until an acknowledg-

ment is received.

7. When a DSC Distress acknowledgment is received, a distress alarm

sounds and channel 16 is automatically selected. The LCD shows

the MMSI of the ship responding to your distress.

RECEIVED ACK: acknowledgment signal is received.

RECEIVED RLY: relay signal is received from another vessel or coast

station.

8. To cancel the DSC distress alarm signal from the speaker, press any

key.

9.2 INTERCOM OPERATION

9.2.1 Communication

1. Press and hold the [DW] key while in the “RADIO” mode, the mode is

changed to “INTERCOM” mode. If the [DW] key pressed and held again

the QUEST+ will revert to “RADIO” mode.

2. When the “INTERCOM” operation is activated, “IC” is dis-

played on the LCD.

3. Press the PTT switch. The “TALK” is displayed.

NOTE: A warning beep is emitted when the RAM+ Mic

PTT switch is pressed while the transceiver microphone’s

PTT switch is pressed.

4. Speak slowly and clearly into the microphone, hold the

microphone about 1/2 inch away from your mouth.

5. When finished, release the PTT switch.

9.2.2 Calling

Hold down the [DW] key for 1 second or more, when the “INTERCOM” op-

eration is activated. A calling beep is emitted twice from the transceiver

speaker.

GX1256S Page 55

9.3 DSC/RADIO SETUP MODE

The CMP25 can access the DSC / RADIO setup menu (refer to section 7

“DIGITAL SELECTIVE CALLING” and section 8 “RADIO SETUP MODE” for

details). However, the LAMP, CONTRAST, and KEY BEEP menu item which

is accessed from the CMP25 only controls the CMP25’s display and speaker.

DSC/RADIO Setup mode from the CMP25:

1. Press and hold down the [CALL/SET] key until “RADIO SETUP” menu

appears.

2. Press the []/[] key to select “RADIO SET” or “DSC SETUP” menu.

3. Press the [CALL/SET] key, then select the menu item you wish to work

on by pressing the []/[] key.

4. Press the [CALL/SET] key.

5. Press the []/[] key to change the value or condition for the menu

item, then press the [CALL/SET] key to save the new setting.

6. Press the []/[] key to select “EXIT,” then press the [CALL/SET] key

to return to the normal operation.

RADIO SETUP-menu DSC SETUP-menu

GX1256SPage 56

10 MAINTENANCE

The inherent quality of the solid-state components used in this transceiver

will provide many years of continuous use. Taking the following precautions

will prevent damage to the transceiver.

• Keep the microphone connected or the jack covered at all times to pre-

vent corrosion of electrical contacts;

• Never key the microphone unless an antenna or suitable dummy load is

connected to the transceiver.

• Ensure that the supply voltage to the transceiver does not exceed 16

VDC or fall below 11 VDC.

• Use only STANDARD HORIZON-approved accessories and replacement

parts.

In the unlikely event of serious problems, please contact your Dealer or our

repair facility. Address and phone numbers for this facility, as well as war-

ranty information, are contained in section 11 WARRANTY.

10.1 REPLACEMENT PARTS

Occasionally an owner needs a replacement mounting bracket or knob.

These can be ordered from our Parts Department by writing or calling:

Marine Division of Vertex Standard

US Headquarters

10900 Walker Street, Cypress, CA 90630, U.S.A.

Telephone (714) 827-7600

Commonly requested parts, and their part numbers are listed below.

•Power Cord: T9023306

•Dust Cover: RA0437900

•VOL/SQL Knob Assy: RA0422200

•Mounting Braket (White): RA0448900

•Mounting Braket (Black): RA0459200

•Mounting Braket Knob (White): RA043770A

•Mounting Braket Knob (Black): RA045910A

•Microphone Hanger (White): RA0436000

•Microphone Hanger (Black): RA0458800

•RAM+ Routing Cable: S8101512

•RAM+ Panel Mount Cap: RA0525200

•RAM+ Rubber DSC Distress Cover: RA0523200

GX1256S Page 57

10.2 FACTORY SERVICE

In the unlikely event that the radio fails to perform or needs servicing, please

contact your Dealer or Marine Division of Vertex Standard.

An “RA” Return Authorization number is not necessary to send a product in

for service. Include a brief note describing the problem along with your name,

return address, phone number, and proof of purchase.

GX1256SPage 58

10.3 TROUBLESHOOTING CHART

PROBABLE CAUSE

No DC voltage to the

transceiver, or blown

fuse.

Reversed power

wires.

Engine noise.

External cable.

Antenna.

The power supply volt-

age is too high or too

low.

External cable.

Setting of the GPS

navigation receiver.

REMEDY

a. Check the 12 VDC battery con-

nections and the fuse.

b. The VOL/PWR knob needs to be

pressed and held to turn the ra-

dio on.

Check the power cable for DC volt-

age, or replace the fuse (6A 250V).

Make sure the red wire is con-

nected to the positive (+) battery

post, and the black wire is con-

nected to the negative (-) battery

post. If the fuse still blows, con-

tact your Dealer.

Reroute the DC power cables

away from the engine. Add noise

suppressor on power cable.

Change to resistive spark plug

wires and/or add an alternator

whine filter.

Check the polarity of the con-

nected external cable.

Have the antenna checked or test

the transceiver with another an-

tenna. If the problem persists, con-

tact your Dealer for servicing.

Confirm that the connected power

supply voltage is not 17 volts or

lower than 10 volts. Confirm that

the generator has not malfunc-

tioned.

Check the polarity of the con-

nected external cable.

Some GPS use the battery ground

line for NMEA connection.

Check the output signal format of

the GPS navigation receiver. This

radio requires NMEA0183 format

with GLL sentence as an output

signal. If the GPS has a baud rate

setting make sure to select 4800

and parity to NONE.

TROBLESHOOTING CHART

SYMPTOM

Transceiver fails to

power up.

Transceiver blows

fuse when connected

to power supply.

Popping or whining

noise from the

speaker while engine

runs.

Sound is not emitted

from the external

speaker.

Receiving station re-

port low transmit

power, even with

transceiver set to HI

power.

“HI BATTERY” or

“LOW BATTERY”

message is scrolled

when the power is

turned on.

Your position is not

displayed.

GX1256S Page 59

11. CHANNEL ASSIGNMENTS

Tables on the following columns list the VHF Marine Channel assignments

for U.S.A. and International use. Below are listed some data about the charts.

1. VTS. Where indicated, these channels are part of the U.S. Coast Guard’s

Vessel Traffic System.

2. Alpha channel numbers, that is, channel numbers followed by the letter

A (such as Channel 07A) are simplex channels on the U.S.A. or Cana-

dian channel assignments whose counterparts in the International as-

signments are duplex channels. International channels do not use “al-

pha” numbers. If you call the Coast Guard on Channel 16, they will some-

times ask you to “go to channel 22 Alpha.” This is a channel assigned

to U.S.A, and Canadian Coast Guards for handling distress and other

calls. If your radio is set for International operation you will go to Chan-

nel 22 instead of 22A, and will not be able to communicate with the

Coast Guard. To use Channel 22A, your radio must be set for USA or

Canada operation, usually by a U/I/C (USA/International/Canada) con-

trol or combination of controls. Channel 22 (without an “A”) is an Inter-

national duplex channel for port operations. Some radios indicate an

“A” adjacent to the alpha channels on the display; on others “alpha” is

not indicated but the proper channel is selected based on the U/I/C set-

ting.

3. Bridge-to-Bridge channels (for example, Channel 13) are for use by bridge

operators on intercoastal waterways and rivers. It is also used by marine

vessels in the vicinity of these bridges for navigation and for communi-

cating with the bridge operators. Note that a limit of 1 Watt is specified

for these channels. See page 25 for additional information.

4. The S/D column on the chart indicates either S (simplex) or D (duplex).

Simplex means transmitting and receiving on the same frequency. Only

one party at a time can talk, unlike a telephone. Be sure to say “over”

and release your microphone push-to-talk switch at the end of each trans-

mission. Duplex operation involves the use of one frequency for trans-

mitting and a separate frequency for receiving. On channels specified

as duplex on the charts, correct mode of operation is established auto-

matically by your radio when you select a channel; you cannot change

the mode. And you still must release the push-to-talk switch after each

transmission in order to listen to the radio.

GX1256SPage 60

5. Channels normally used by recreational boaters are those that include

the term “non-commercial” in the Channel Use column of the chart. Some

of these are shared with other users and some are used only in certain

geographic regions.

6. Marine vessels equipped with VHF radios are required to monitor

Channel 16.

VHF MARINE CHANNEL CHART

CH U C I S/D TX RX CHANNEL USE

01 X X D 156.050 160.650 Public Correspondence (Marine Operator)

01A X S 156.050 Port Operation and Commercial. VTS in selected areas

02 X X D 156.100 160.700 Public Correspondence (Marine Operator)

03 X X D 156.150 160.750 Public Correspondence (Marine Operator)

03A X S 156.150 US Government only, Coast Guard

04 X D 156.200 160.800 Public Correspondence (Marine Operator),

Port operation, ship movement

04A X S 156.200 Pacific coast: Coast Guard, East Coast:

Commercial fishing

05 X D 156.250 160.850 Public Correspondence (Marine Operator),

Port operation, ship movement

05A X X S 156.250 Port operation. VTS in Seattle

06 X X X S 156.300 Inter-ship Sefety

07 X D 156.350 160.950 Public Correspondence (Marine Operator),

Port operation, ship movement

07A X X S 156.350 Commercial

08 X X X S 156.400 Commercial (Inter-ship only)

09 X X X S 156.450 Boater Calling channel, Commercial & Non-commercial

(Recreational)

10 X X X S 156.500 Commercial

11 X X X S 156.550 Commercial. VTS in selected areas.

12 X X X S 156.600 Port operation. VTS in selected areas.

13 X X X S 156.650 Inter-ship Navigation Safety (Bridge-to-bridge)

14 X X X S 156.700 Port operation. VTS in selected areas.

15 X S - - - 156.750 Environmental (Receive only)

15 X X S 156.750 Commercial, non-commercial, ship movement (1 W)

16 X X X S 156.800 International Distress, Safety and Calling

17 X X X S 156.850 State Controlled (1 W)

18 X D 156.900 161.500 Port operation, ship movement

18A X X S 156.900 Commercial

19 X D 156.950 161.550 Port operation, ship movement

19A X S 156.950 US: Commercial

19A X S 156.950 Coast Guard

20 X X X D 157.000 161.600 Canadian Coast Guard Only,

International: port operations and shipment

20A X S 157.000 Port operation

21 X D 157.050 161.650 Port operation, ship movement

21A X X S 157.050 U.S. Government Only, Canadian Coast Guard

22 X D 157.100 161.700 Port operation, ship movement

22A X X S 157.100 US and Canadian Coast Guard Liaison and Maritime

Safety Information Broadcasts announced on channel 16

GX1256S Page 61

VHF MARINE CHANNEL CHART

CH U C I S/D TX RX CHANNEL USE

23 X X D 157.150 161.750 Public Correspondence (Marine Operator)

23A X S 157.150 U.S. Government Only

24 X X X D 157.200 161.800 Public Correspondence (Marine Operator)

25 X X X D 157.250 161.850 Public Correspondence (Marine Operator)

26 X X X D 157.300 161.900 Public Correspondence (Marine Operator)

27 X X X D 157.350 161.950 Public Correspondence (Marine Operator)

28 X X X D 157.400 162.000 Public Correspondence (Marine Operator)

60 X X D 156.025 160.625 Public Correspondence (Marine Operator)

61 X D 156.075 160.675 Public Correspondence (Marine Operator),

Port operation, ship movement

61A X X S 156.075 U.S. Government Only, Canadian Coast Guard-

Pacific Coast, Commercial Fishing-East Coast

62 X D 156.125 160.725 Public Correspondence (Marine Operator),

Port operation, ship movement

62A X S 156.125 Public Coast: Coast Guard;

East Coast: commercial fishing only

63 X D 156.175 160.775 Public Correspondence (Marine Operator),

Port operation, ship movement

63A X S 156.175 Port Operation and Commercial. VTS in selected areas.

64 X X D 156.225 160.825 Public Correspondence (Marine Operator),

Port operation, ship movement

64A X X S 156.225 U.S. Government Only, Canadian Commercial Fishing

65 X D 156.275 160.875 Public Correspondence (Marine Operator),

Port operation, ship movement

65A X X S 156.275 Port Opeations

66 X D 156.325 160.925 Public Correspondence (Marine Operator),

Port operation, ship movement

66A X X S 156.325 Port Operations

67 X X X S 156.375 US: Commercial. Used for Bridge-to-bridge communi-

cations in lower Mississippi River. Inter-ship only,

Canada: Commercial fishing, S&R

68 X X X S 156.425 Non-commercial (Recreational)

69 X X X S 156.475 US: Non-commercial (Recreational),

Canada: Commercial fishing only,

International: Inter-ship, Port opertions and Ship movement

70 X X X S 156.525 Digital selective calling (voice communications not allowed)

71 X X X S 156.575 US, Canada: Non-commercial (Recreational),

International: Port opertions and Ship movement

72 X X X S 156.625 Non-commercial (Inter-ship only)

73 X X X S 156.675 US: Port Operations, Canada: Commercial fishing only,

International: Inter-ship, Port opertions and Ship movement

74 X X X S 156.725 US: Port Operations, Canada: Commercial fishing only,

International: Inter-ship, Port opertions and Ship movement

75 X S 156.775 Port Operations (Inter-ship only) (1W)

76 X S 156.825 Port Operations (Inter-ship only) (1W)

77 X X S 156.875 Port Operations (Inter-ship only) (1W)

77 X S 156.875 Port Operations (Inter-ship only)

78 X D 156.925 161.525 Public Correspondence (Marine Operator),

Port operation, ship-movement

78A X X S 156.925 Non-commercial (Recreational)

GX1256SPage 62

VHF MARINE CHANNEL CHART

CH U C I S/D TX RX CHANNEL USE

79 X D 156.975 161.575 Port operation and Ship movement

79A X X S 156.975 Commercial

80 X D 157.025 161.625 Port operation, ship movement

80A X X S 157.025 Commercial

81 X D 157.075 161.675 Port operation, ship movement

81A X X S 157.075 U.S. Government Only -

Environmental protection operations.

82 X D 157.125 161.725 Public Correspondence (Marine Operator),

Port operation, ship movement

82A X X S 157.125 U.S. Government Only, Canadian Coast Guard Only

83 X X D 157.175 161.775 Canadian Coast Guard Only

83A X X S 157.175 U.S. Government Only, Canadian Coast Guard Only

83 X X D 157.175 161.775 Public Correspondence (Marine Operator)

84 X X X D 157.225 161.825 Public Correspondence (Marine Operator)

85 X X X D 157.275 161.875 Public Correspondence (Marine Operator)

86 X X X D 157.325 161.925 Public Correspondence (Marine Operator)

87 X X X D 157.375 161.975 Public Correspondence (Marine Operator)

88 X X X D 157.425 162.025 Public Correspondence (ship-to-coast)

88A X S 157.425 Commercial, Inter-ship Only

WX01

X X X D - - - 162.550 Weather (receive only)

WX02

X X X D - - - 162.400 Weather (receive only)

WX03

X X X D - - - 162.475 Weather (receive only)

WX04

X X X D - - - 162.425 Weather (receive only)

WX05

X X X D - - - 162.450 Weather (receive only)

WX06

X X X D - - - 162.500 Weather (receive only)

WX07

X X X D - - - 162.525 Weather (receive only)

WX08

X X X D - - - 161.650 Weather (receive only)

WX09

X X X D - - - 161.775 Weather (receive only)

WX10

X X X D - - - 163.275 Weather (receive only)

The above BOLD channels are not for use of the general public in U.S. waters, unless proper

authorization is given.

GX1256S Page 63

Port Operations

01A1156.050 156.050

63A1156.175 156.175

052156.250 156.250

65A 156.275 156.275

66A 156.325 156.325

123156.600 156.600

73 156.675 156.675

143156.700 156.700

74 156.725 156.725

774156.875 Intership only.

20A12 157.000 Intership only.

Navigational (Bridge-to-Bridge)5

136156.650 156.650

677156.375 156.375

Commercial

01A1156.050 156.050

63A1156.175 156.175

07A 156.350 156.350

677156.375 Intership only.

08 156.400 ........ Do.

09 156.450 156.450

10 156.500 156.500

113156.550 156.550

18A 156.900 156.900

19A 156.950 156.950

79A 156.975 156.975

80A 157.025 157.025

88A8157.425 ........ Intership only.

7214 156.625 ........ Internship only.

Digital Selective Calling

7015 156.525 156.525

Noncommercial

6817 156.425 156.425

0916 156.450 156.450

69 156.475 156.475

71 156.575 156.575

72 156.625 ........ Intership only.

78A 156.925 156.925

79A 156.975 156.975 Great Lakes only.

80A 157.025 157.025 Do.

6714 156.375 ....... Internship only.

Distress, Safety and Calling

16 156.800 156.800 EPRIB

Intership Safety

06 156.300 ........ a. Intership, or b.

For SAR: Ship and

aircraft for the U.S.

Coast Guard.

Environmental

1513 ........ 156.750 Coast to ship only.

Maritime Control

179,10 156.850 156.850

Liaison, U.S. Coast Guard

22A11 157.100 157.100 Ship, aircraft, and

coast stations of

the U.S. Coast

Guard and at Lake

Mead, Nev., ship

and coast stations

of the National

Park Service, U.S.

Department of the

Interior.

Ship

transmit

Channel

designator

Carrier frequency

(MHz)

Points of communica-

tion (Intership and be-

tween coast and ship

unless otherwise indi-

cated)

Coast

transmit

Ship

transmit

Channel

designator

Carrier frequency

(MHz)

Points of communica-

tion (Intership and be-

tween coast and ship

unless otherwise indi-

cated)

Coast

transmit

1: 156.050 MHz and 156.175 MHz are available for port operations and commercial communications

purposes when used only within the U.S. Coast Guard designated Vessel Traffic Services (VTS)

area of New Orleans, on the lower Mississippi River from the various pass entrances in the Gulf of

Mexico to Devil’s Swamp Light at River Mile 242.4 above head of passes near Baton Rouge.

2: 156.250 MHz is available for port operations communications use only within the U.S. Coast Guard

designated VTS radio protection areas of New Orleans and Houston described in Sec. 80.383.

156.250 MHz is available for intership port operations communications used only within the area of

Los Angeles and Long Beach harbors, within a 25- nautical mile radius of Point Fermin, California.

3: 156.550 MHz, 156.600 MHz and 156.700 MHz are available in the U.S. Coast Guard designated

port areas only for VTS communications and in the Great Lakes available primarily for communica-

tions relating to the movement of ships in sectors designated by the St. Lawrence Seaway Develop-

ment Corporation or the U.S. Coast Guard. The use of these frequencies outside VTS and ship

movement sector protected areas is permitted provided they cause no interference to VTS and ship

movement communications in thier respective designated sectors.

GX1256SPage 64

4: Use of 156.875 MHz is limited to communications with pilots regarding the movement and docking

of ships. Normal output power must not exceed 1 watt.

5: 156.375 MHz and 156.650 MHz are available primarily for intership navigational communications.

These frequencies are available between coast and ship on a secondary basis when used on or in

the vicinity of locks or drawbridges. Normal output power must not exceed 1 watt. Maximum output

power must not exceed 10 watts for coast stations or 25 watts for ship stations.

6: On the Great Lakes, in addition to bridge-to-bridge communications, 156.650 MHz is available for

vessel control purposes in established vessel traffic systems. 156.650 MHz is not available for use in

the Mississippi River from South Pass Lighted Whistle Buoy “2” and Southwest Pass entrance

Midchannel Lighted Whistle Buoy to mile 242.4 above Head of Passes near Baton Rouge. Addition-

ally it is not available for use in the Mississippi River-Gulf Outlet, the Mississippi River-Gulf Outlet

Canal, and the Inner Harbor Navigational Canal, except to aid the transition from these areas.

7: Use of 156.375 MHz is available for navigational communications only in the Mississippi River from

South Pass Lighted Whistle Buoy “2” and Southwest Pass entrance Mid-channel Lighted Whistle

Buoy to mile 242.4 above head of Passes near Baton Rouge, and in addition over the full length of

the Mississippi River-Gulf Outlet Canal from entrance to its junction with the Inner Harbor Navigation

Canal, and over the ull length of the Inner Harbor Navigation Canal from its junction with the Missis-

sippi River to its entry to Lake Pontchartrain at the New Seabrook vehicular bridge.

8: Within 120 km (75 miles) of the United States/Canada border, in the area of the Puget Sound and

the Strait of Juan de Fuca and its approaches, 157.425 MHz is half of the duplex pair designated as

Channel 88. In this area, Channel 88 is available to ship stations for communications with public

coast stations only. More than 120 km (75 miles) from the United States/Canada border in the area

of the Puget Sound and the Strait of Juan de Fuca, its approaches, the Great Lakes, and the St.

Lawrence Seaway, 157.425 MHz is available for intership and commercial communications. Outside

Puget Sound area and its approaches and the Great Lakes, 157.425 MHz is also available for

communications between commercial fishing vessels and associated aircraft while engaged in com-

mercial fishing activities.

9: When the frequency 156.850 MHz is authorized, it may be used additionally for search and rescue

training exercises conducted by state or local governments.

10: The frequency 156.850 MHz is additionally available to coast stations on the Great Lakes for trans-

mission of scheduled Coded Marine Weather Forecasts (MAFOR), Great Lakes Weather Broadcast

(LAWEB) and nscheduled Notices to Mariners or Bulletins. F3C and J3C emissions are permitted.

Coast Stations on the Great Lakes must cease weather broadcasts which cause interference to

stations operating on 156.800 MHz until the interference problem is resolved.

11: The frequency 157.100 MHz is authorized for search and rescuetraining exercises by state or local

government in conjunction with U.S. Coast Guard stations. Prior U.S. Coast Guard approval is re-

quired. Use must cease immediately on U.S. Coast Guard request.

12: The duplex pair for channel 20 (157.000/161.600 MHz) may be used for ship to coast station com-

munications.

13: Available for assignment to coast stations, the use of which is in accord with an agreed program, for

the broadcast of information to ship stations concerning the environmental conditions in which ves-

sels operate, i.e., weather; sea conditions; time signals; notices to mariners; and hazards to naviga-

tion.

14: Available only in the Puget Sound and the Strait of Juan de Fuca.

15: The frequency 156.525 MHz is to be used exclusively for distress, safety and calling using digital

selective calling techniques. No other uses are permitted.

16: The frequency 156.450 MHz is available for intership, ship and coast general purpose calling by

noncommercial vessels, such as recreational boats and private coast stations.

17: The frequency 156.425 MHz is assigned by rule to private coast stations in Alaska for facsimile

transmissions as well as voice communications.

GX1256S Page 65

12. WARRANTY

Marine Products Limited Warranty

STANDARD HORIZON (a division of VERTEX STANDARD) warrants, to the

original purchaser only, each new Marine Communications Product (“Prod-

uct”) manufactured and/or supplied by STANDARD HORIZON against de-

fects in materials and workmanship under normal use and service for a

period of time from the date of purchase as follows:

Fixed Mount and Portable Transceivers

1 year - if purchased before 01/01/91

3 years - if purchased between 01/01/91 and 01/01/94

3 years Waterproof - if purchased after 01/01/94

Loud hailers

1 year - if purchased before 01/01/91

3 years - if purchased after 01/01/91

Associated Chargers

1 year - if purchased before 01/01/91

3 years - if purchased after 01/01/91

Associated Batteries - 18 months. Note: Batteries will be deemed deflec-

tive only if storage capacity drops below 80% of rated capacity or if leakage

develops.

Associated Accessories - 1 year. Includes: Microphones/Handsets, Exter-

nal Speakers, Antennas, Carrying Accessories, Power Supplies, and Sig-

naling Boards.

To receive warranty service, the purchaser must deliver the Product, trans-

portation and insurance prepaid, to STANDARD HORIZON (a division of

VERTEX STANDARD). Include proof of purchase indicating model. serial

number, and date of purchase. STANDARD HORIZON will return the Prod-

uct to the purchaser freight prepaid. Products purchased prior to January 1,

1991 will bear the STANDARD HORIZON warranty terms in effect prior to

that date.

In the event of a defect, malfunction or failure of the Product during the

warranty period, STANDARD HORIZON’s liability for any breach of contract

or any breach of express or implied warranties in connection with the sale of

Products shall be limited solely to repair or replacement, at its option, of the

Product or part(s) therein which, upon examination by STANDARD HORI-

GX1256SPage 66

ZON, appear to be defective or not up to factory specifications. STANDARD

HORIZON may, at its option, repair or replace parts or subassemblies with

new or reconditioned parts and subassemblies. Parts thus repaired or re-

placed are warranted for the balance of the original applicable warranty.

STANDARD HORIZON will not warrant installation, maintenance or service

of the Products. In all instances, STANDARD HORIZON’s liability for dam-

ages shall not exceed the purchase price of the defective Product.

This warranty only extends to Products sold within the 50 States of the United

States of America and the District of Columbia.

STANDARD HORIZON will pay all labor to repair the product and replace-

ment parts charges incurred in providing the warranty service except where

purchaser abuse or other qualifying exceptions exist. The purchaser must

pay any transportation expenses incurred in returning the Product to STAN-

DARD HORIZON for service.

This limited warranty does not extend to any Product which has been sub-

jected to misuse, neglect, accident, incorrect wiring by anyone other than

STANDARD HORIZON, improper installation, or subjected to use in viola-

tion of instructions furnished by STANDARD HORIZON, nor does this war-

ranty extend to Products on which the serial number has been removed,

defaced, or changed. STANDARD HORIZON cannot be responsible in any

way for ancillary equipment not furnished by STANDARD HORIZON which

is attached to or used in connection with STANDARD HORIZON’s Products,

or for the operation of the Product with any ancillary equipment, and all such

equipment is expressly excluded from this warranty. STANDARD HORIZON

disclaims liability for range, coverage, or operation of the Product and ancil-

lary equipment as a whole under this warranty. STANDARD HORIZON re-

serves the right to make changes or improvements in Products, during sub-

sequent production, without incurring the obligation to install such changes

or improvements on previously manufactured Products.

The implied warranties which the law imposes on the sale of this Product

are expressly LIMITED, in duration, to the time period specified above. STAN-

DARD HORIZON shall not be liable under any circumstances for conse-

quential damages resulting from the use and operation of this Product, or

from the breach of this LIMITED WARRANTY, any implied warranties, or

any contract with STANDARD HORIZON. IN CONNECTION WITH THE

SALE OF ITS PRODUCTS, STANDARD HORIZON MAKES NO WARRAN-

GX1256S Page 67

TIES, EXPRESS OR IMPLIED AS TO THE MERCHANTABILITY OR FIT-

NESS FOR A PARTICULAR PURPOSE OR OTHERWISE, EXCEPT AS

EXPRESSLY SET FORTH HEREIN.

Some states do not allow the exclusion or limitation of incidental or conse-

quential damages, or limitation on how long an implied warranty lasts, so

the above limitations or exclusions may not apply. This warranty gives spe-

cific legal rights, and there may be other rights which may vary from state to

state.

ONLY PRODUCTS SOLD ON OR AFTER JANUARY 1, 1991 ARE COV-

ERED UNDER THE TERMS OF THIS LIMITED WARRANTY.

GX1256SPage 68

ON-LINE WARRANTY REGISTRATION

THANK YOU for buying STANDARD HORIZON (a division of Vertex

Standard) products! We are confident your new radio will serve your

needs for many years!

Please visit www.standardhorizon.com to register the QUEST Ma-

rine VHF. It should be noted that visiting the Web site from time to

time may be beneficial to you, as new products are released they will

appear on the STANDARD HORIZON Web site. Also a statement

regarding product support should be added to the manual.

Product Support Inquiries

If you have any questions or comments regarding the use of the

QUEST+, you can visit the STANDARD HORIZON Web site to send

an E-Mail or contact the Product Support team at (714) 827-7600 ext

6300 M-F 7:00-5:00PST.

In addition to the warranty, STANDARD HORIZON includes a life-

time “flat rate” program to provide service after the warranty period

has expired. If you wish to obtain the flat rate price for out-of-war-

ranty repair, you must include the information on the Owner’s Record

with the unit when you return it to your Dealer or to STANDARD

HORIZON.

Lifetime Flat Rate Service Program: For the original Owner only, for

the lifetime of the unit, STANDARD HORIZON will repair the unit to

original specifications.

Note: The flat rate amount is payable by the Owner only if STAN-

DARD HORIZON or the STANDARD HORIZON Dealer determines

that a repair is needed. After the repair, a 90-day warranty will be in

effect from the date of return of the unit to the Owner.

This service program is not available for equipment which has failed

as a result of neglect, accident, breakage, misuse, improper installa-

tion or modification, or water damage (depending on the product).

GX1256S Page 69

13 SPECIFICATIONS

Performance specifications are nominal, unless otherwise indicated, and

are subject to change without notice.

13.1 GENERAL

Channels ............................................ All USA, International and Canadian

Input Voltage........................................................................ 13.8 VDC ±20%

Current Drain

Standby ............................................................................................ 0.5 A

Receive ............................................................................................ 1.5 A

Transmit ................................................................... 5.0 A (Hi); 1.5 A (Lo)

Dimensions ................................................ 2-1/2” H x 6-5/16” W x 6-5/16” D

(64 H x 160 W x 160 D mm)

Flush-Mount Dimensions .................................. 2” H x 5-5/16” W x 5-1/8” D

(50 H x 136 W x 130 D mm)

Weight ...................................................................................... 2.2 lbs (1 kg)

13.2 TRANSMITTER

Frequency Range .................................................. 156.025 to 157.425 MHz

RF Output ...................................................................... 25 W (Hi); 1 W (Lo)

Conducted Spurious Emissions ................................. 80 dB (Hi); 60 dB (Lo)

Audio Response .............................................. within +1/-3 of a 6 dB/octave

pre-emphasis characteristic at 300 to 3000 Hz

Audio Distortion ....................................................................................... 5 %

Modulation ..................................................... 16K0G3E, for DSC 16K0G2B

Frequency Stability (-20°C to +50°C) ........................................... ±0.0005%

FM Hum and Noise .............................................................................. 50 dB

13.3 RECEIVER

Frequency Range .................................................. 156.050 to 163.275 MHz

Sensitivity

20 dB Quieting ............................................................................. 0.35 µV

12 dB SINAD ............................................................................... 0.25 µV

Squelch Sensitivity (Threshold) .................................................. 0.13 µV

Modulation Acceptance Bandwidth ................................................. ±7.5 kHz

Selectivity

Spurious and Image Rejection ...................................................... -70 dB

Intermodulation and Rejection at 12 dB SINAD ........................... -70 dB

Audio Output............................................................................................ 4 W

Audio Response ............................................ within + 2/–8 of a 6 dB/octave

de-emphasis characteristic at 300 to 3000 Hz

Frequency Stability (-20°C to +50°C) .......................................... ±0.0005 %

Channel Spacing ................................................................................ 25 kHz

DSC Format .............................................................................. RTCMSC101

GX1256SPage 70

MEMO

GX1256S Page 71

MEMO

GX1256SPage 72

Marine Division of VERTEX STANDARD

US Headquarters

10900 Walker Street, Cypress, CA 90630, U.S.A.

www. standardhorizon.com

VERTEX STANDARD CO., LTD.

No portion of this manual

may be reproduced

without the permission of

VERTEX STANDARD CO., LTD.

0401b-0Y

EM005N100

Yaesu Musen 30053X30 VHF/FM MARINE TRANSCEIVER User Manual GX1256S p65

Yaesu Musen Co., Ltd. VHF/FM MARINE TRANSCEIVER GX1256S p65

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