Yaesu Musen GX1255S User Manual

FCC ID: K66GX1255S

Operating Manual

Quest GX1255S

Quest GX1255S

Quest GX1255SQuest GX1255S

25 Watt VHF/FM Marine Transceiver

25 Watt VHF/FM Marine Transceiver Owner's Manual

25 Watt VHF/FM Marine Transceiver 25 Watt VHF/FM Marine Transceiver

・ One-Button DSC Distress Call Automatically Sends Latitude & Longitude and

Vessel ID

・ Programmable Scan & Priority Ch16 Scan
・ NOAA Weather Alert
・ Backlit LCD & Keys
・ Huge LCD

TABLE OF CONTENTS

TABLE OF CONTENTS

TABLE OF CONTENTSTABLE OF CONTENTS

FCC RADIO LICENSE INFORMATION

STATION LICENSE
RADIO CALL SIGN

Owner's Manual

Owner's ManualOwner's Manual

CANADIAN SHIP STATION LICENSING
FCC NOTICE
1 GENERAL INFORMATION

1.1 INTRODUCTION

1.2 FCC/INDUSTRY CANADA INFORMATION

2 ACCESSORIES

2.1 PACKING LIST

2.2 OPTIONS

3 CONTROLS AND INDICATORS

3.1 CONTROLS AND CONNECTIONS

4 INSTALLATION

4.1 LOCATION

4.2 ELECTRICAL CONNECTIONS

4.3 ACCESSORY CABLE

4.4 OPTIONAL CMB16 FLUSH MOUNT INSTALLATION

5 BASIC OPERATION

5.1 RECEPTION

5.2 TRANSMISSION

5.3 TRANSMIT TIME - OUT TIMER (TOT)

5.4 SIMPLEX/DUPLEX CHANNEL USE

5.5 USA, CANADA, AND INTERNATIONAL MODE

5.6 NOAA WEATHER CHANNELS

5.7 NOAA WEATHER ALERT

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5.8 MEMORY SCANNING (M-SCAN)

5.9 PRIORITY SCANNING (P-SCAN)

5.10 POSITION INDICATION

5.11 RESETTING THE TRANSCEIVER’S MICROPROCESSOR

6 DIGITAL SELECTIVE CALLING

6.1 GENERAL

6.1.1 Digital Selective Calling ( D SC)

6.1.2 Maritime Mobile Service Identity (MMSI)

6.2 SENDING A DISTRESS CALL

6.3 SENDING AN INDIVIDUAL CALL

6.4 SENDING AN ALL SHIPS CALL

6.5 RECEIVING DSC CALLS

6.5.1 Receiving a distress call

FCC ID: K66GX1255S

Operating Manual

6.5.2 Receiving a distress relay call

6.5.3 Receiving an all ships call

6.5.4 Receiving a geographical area call

6.5.5 Receiving an individual call

7. DSC / RADIO SETUP MODE

7.1 SETUP

7.2 LAMP ADJUSTING

7.3 LCD CONTRAST

7.4 CH NAMING

7.5 INDIVIDUAL DIRECTORY SETUP (DSC)

7.6 KEY BEEP (ON OR OFF)

7.7 INDIVIDUAL RING

7.8 TIME OFFSET

7.9 USER MMSI INPUT

7.10 DSC SCANNING TO CHANGE DSC SCAN METHOD

8 OPERATING PRACTICES

8.1 EMERGENCY (CHANNEL 16 USE)

8.2 CALLING ANOTHER VESSEL (CHANNEL 16 OR 9)

8.3 MAKING TELEPHONE CALLS

8.4 OPERATING ON CHANNELS 13 AND 67

8.5 PROHIBITED COMMUNICATIONS

8.6 NOAA WEATHER ALERT TESTING

8.7 DIGITAL SELECTIVE CALLING (DSC)

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8.7.1 USCG DSC Watch

8.8 MARITIME MOBIL E SERVICE IDENTITY (MM SI)

8.8.1 What is a MMSI?

8.9 USING DIGITAL SELECTIVE CALLING FEATURES

8.9.1 Distress Call

8.9.2 Individual Call

8.9.3 Urgency Call

8.9.4 Safety Call

8.10 ADDITIONAL DIGITAL SELECTIVE CALLING INFORMATION

8.11 ABOUT VHF RADIO

8.12 SELECTING AN ANTENNA

8.13 COAXIAL CABLE

9 MAINTENANCE

Operating Manual

9.1 REPLACEMENT PARTS

9.2 FACTORY SERVICE

9.3 TROUBLESHOOTING CHART

10. CHANNEL ASSIGNMENTS

11. WARRANTY

12. SPECIFICATIONS

12.1 GENERAL

12.2 TRANSMITTER

12.3 RECEIVER

Safety / Warning Information

Safety / Warning Information

Safety / Warning InformationSafety / Warning Information

WARNING

WARNING - DO NOT operate the GX-1255S radio when someone (bystanders) outside

WARNINGWARNING
the vehicle is within following r ange.

Safety

Safety Training information:

Safety Safety
Antennas used for this transmitter must not exceed an antenna gain of 0 dB. The
radio must be used in vessel-mount configurations with a maximum operating duty

Train ing information:

Train ing information:Train ing information:

factor not exceeding 50% , in t ypical Push-to-Talk configurations.
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 of 0.71 m
(2.33 feet).
Failure to observe these restrictions will result in exceeding the FCC RF exposure

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limits.

Antenna Installation:

Antenna Installation:

Antenna Installation:Antenna Installation:
The antenna must be located at least 0.71 m (2.33 feet) away from passengers in order
to comply with the FCC RF exposure requirements.
For roof top installation, the antenna mu st be placed in the center of the roof.

ON-LINE WARRANTY REGISTRATION

ON-LINE WARRANTY REGISTRATION

ON-LINE WARRANTY REGISTRATIONON-LINE WARRANTY REGISTRATION
Please visit www.standardhorizon.com to register the QUEST Marine VH F. 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 appe ar on t he STANDARD HORIZON Web site.

PRODUCT SUPPORT INQUIRIES

PRODUCT SUPPORT INQUIRIES

PRODUCT SUPPORT INQUIRIESPRODUCT 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 562/404-2700 M-F 7:00-5:00 PS T.

FCC RADIO LICENS E INFORMATION

FCC RADIO LICENS E INFORMATION

FCC RADIO LICENS E INFORMATIONFCC RADIO LICENS E INFORMATION
Standard Horizon radios comply with the Federal Communication Commission (FCC)
requirements that regulate the Ma riti me R adio Service.

ST ATION LICENSE

ST ATION LICENSE

ST ATION LICENSEST ATION LICENSE
An FCC ship statio n licen se is no lo nger re quire d for any ve ssel tr ave ling in U.S . wat ers
which uses a VHF marine radio, RADAR or EPIRB, and which is not required to carry
radio equipment. However, any vessel required to carry a marine radio on an
international voyage, carrying a HF single side band radiotelephone or marine satellite
terminal. 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 [phone].

RADIO CALL SIG N

RADIO CALL SIG N

RADIO CALL SIG NRADIO CALL SIG N
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.

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CANADIAN SHIP STATION LICENSING

CANADIAN SHIP STATION LICENSING

CANADIAN SHIP STATION LICENSINGCANADIAN SHIP STATION LICENSING
You may n ee d a lic en se whe n trave li ng in Ca na da.. If you do need a license contact t heir
nearest field office or regional office or write:

Industry Canada

Industry Canada

Industry CanadaIndustry Canada
Radio Regulatory Br anc h

Radio Regulatory Br anc h

Radio Regulatory Br anc hRadio Regulatory Br anc h
Attn: DOSP

Attn: DOSP

Attn: DOSPAttn: DOSP
300 Slater Street

300 Slater Street

300 Slater Street300 Slater Street
Ottawa, Ontario

Ottawa, Ontario

Ottawa, OntarioOttawa, Ontario
Canada, KIA 0C8

Canada, KIA 0C8

Canada, KIA 0C8Canada, KIA 0C8

FCC NOTICE

FCC NOTICE

FCC NOTICEFCC NOTICE

NOTICE

NOTICE

NOTICENOTICE
Unauthorized changes or modifications to this equipment may void compliance with
FCC Rules. Any change or modification must be approved in writing by STANDARD
HORIZON.

NOTICE

NOTICE

NOTICENOTICE
This equipment has been tested and found to co mply with the limits for a Clas s 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 determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.

- Consult the dealer or an experi enced radio/TV technician for hel p.

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1

1 GENERAL INFORMATION

GENERAL INFORMATION

1 1

GENERAL INFORMATIONGENERAL INFORMATION

1.1

1.1 INTRODUCTION

INTRODUCTION

1.1 1.1

INTRODUCTIONINTRODUCTION
The STANDARD HORIZON GX1255S is a VHF/FM transceiver designed for use in the
frequency range of 156.025 to 163.275 MHz. The GX1255S requires 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 regulations. It has an
emergency channel 16 w hich can be immediately selected from any chan nel by pressing
the red 16/9 key. NOAA Weather channels can al so be acces sed imm ed iately by pres si ng
the WX key.

Other features of the transceiver include: scanning, priority scanning, submersible mic,
high and low voltage warning, and GPS repeatability.

1.2

1.2 FCC/ INDUSTRY CANADA INFORMATION

FCC/ INDUSTRY CANADA INFORMATION

1.2 1.2

FCC/ INDUSTRY CANADA INFORMATIONFCC/ 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 Ty pe Num ber ……… …… ……… ……… …… …… ……… … ………… K66GX 1255S
Industry Canada Type Approval ……………………… ……………………… PENDING

2222 ACCESSORIES

ACCESSORIES

ACCESSORIES ACCESSORIES

2.1

2.1 PACKING LIST

PACKING LIST

2.1 2.1

PACKING LISTPACKING LIST
When the package containing the transceiver is first opened, please check it for the
following contents:

・ GX1255S QUEST Transceiver (with White/Black Microphone)
・ Mounting Bracket (with at taching hardwar e and hanger kit)
・ Owner’s Manual
・ Quick-Reference Card

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・ Power Cord
・ Dust Cover

2.2

2.2 OPTIONS

OPTIONS

2.2 2.2

OPTIONSOPTIONS

CMB16 …………………………………………………………………. Flush-Mount Bracket
101S ………………………………………………………………….. Mini Extension Speaker
201S ………………………………………………………………………… Extension Speaker
201SZ ……………………………………………………… Flush Mount Extension Speaker
201SBK …………………………………………………………….. Black Extension Speaker
201SBKZ ………………………………………….. Flush Mount Black Extension Speaker

3333 CONTROLS AND INDICATORS

CONTROLS AND INDICATORS

CONTROLS AND INDICATORS CONTROLS AND INDICATORS

NOTE

NOTE

NOTENOTE
This section defines each control of the transceiver. See Figure 1 for location of control s.
For detailed operating instruct ions refer to chapter 4 of this manual.

3.1

3.1 CONTROLS AND CONNECTIONS

CONTROLS AND CONNECTIONS

3.1 3.1

CONTROLS AND CONNECTIONSCONTROLS AND CONNECTIONS
(1) POWER SWIT CH /VOLUME CONTROL

T urns the transceiver on and off as well as adjusts the audio volume.
T u rn this control clockwise to turn the radio o n and to increase the volume.
Counterclockwise rotation into the c lick-stop will turn the radio off.
Secondary Use
When the transceiver is turned on while the SCAN 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 Directory Call
information.

(2) SQUELCH CONTROL (S QL)

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

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transmissions.

(3) KEY PAD

16/9 Key
Immediatel y recalls cha nnel 16 from any channel location. Holdi ng 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.

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 SCA N key while turning the power on resets the
microprocessor and erases scan c hannels from mem ory. This clears the memory
and establishes the factory-set defaults. For a list of these defaults, see the
section on Resetting t he Transceiver’s Microprocessor.

DW Key
Watches for a transmission on CH16 and another selected channel until either
signal is received. (Duel watch)

NOTE

NOTE

NOTENOTE

SCAN Key

1. Starts and stops sca nning of programmed channels.

: When enable the DCS SCANNING feature (see section 7.7 DCS

SCANNING), watches for a transmission on CH16, another selected
channel, and

CH70

CH70

until either signal is received (Tripl e watch).

CH70CH70

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 in scan
memory. This function will not work if the unit is scanning.

NOTE: The priorit y channel is channel 16 only .

DISTRESS Key

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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 sele ct channels.

CALL/SET Key
The CALL/SET key fu nctions as the enter key.
Secondary use
Press the CALL/SET key to access the DSC OPERATION menu. The INDIVIDUAL
and ALL SHIPS CALLS functions can be accessed from the DSC OPERATION
menu.

Press and hold the CALL/SET key to access the SETUP menu. The following
functions can be accessed in the SETUP menu; LAMP ADJUST, KEY BEEP, WA,
INDIV DIR, INDIV RING, TIME SET , USER MMSI, and DSC SCAN.

H/L Key
Toggles between high and low power. When the H/L key is pressed while the
transceiver is on chan nel 13 or 67, the power wi ll 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.
Secondary use
Press the H/L key to display the Position Data on the LCD, when connected the GPS
receiver.

(4) ACCESSORY CONNECTION CABLE

Connects the radio to a GPS, and an external s pe aker.

(5) DC INPUT CABLE

Connects the radio to a DC power supply of 13.8V

(6) ANTENNA JACK

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

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impedance of 50 ohms.

(7) PTT (Push-To-Talk) SWITCH

Keys the transmitter when the transceiver is in radio mode. If the transceiver is in
the intercom operation mode, it activates the microphone for the intercom.

(8) MICROPHONE

Tr ansmits the voice message with reduction of background noise.

(9) 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.

(10) 16/9 Key

Pressing the 16/9 key Immediately recalls channel 16 from any location. Press and
hold the 16/9 key to recall channel 9. Pres sing the 16/9 key again revert the radio to
the previous select channel.

4

4 INSTALLATION

INSTALLATION

4 4

INSTALLATIONINSTALLATION

4.1

4.1 LOCATION

LOCATION

4.1 4.1

LOCATIONLOCATION

The radio can be mounted at any ang le. 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 ant enna
・ has nearby space for insta llation of a microphone h anger
・ the antenna must be mounted at least 3 feet from radio

4.2

4.2 ELECTRICAL CONNECTIONS

ELECTRICAL CONNECTIONS

4.2 4.2

ELECTRICAL CONNECTIONSELECTRICAL CONNECTIONS

CAUTION

CAUTION: Reverse polarity connections will damage the radio!

CAUTIONCAUTION

Connect the power cord and antenna to the radio. Antenna and Power Supply
connections are as follows (see Figure 2):

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

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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.

4.3

4.3 ACCESSORY CABLE

ACCESSORY CABLE

4.3 4.3

ACCESSORY CABLEACCESSORY CABLE
White: External speaker (+)
Yellow: External speaker (–)
Blue: NMEA IN (+) from GPS navigation receiver
Green: NMEA IN (–) from GPS navigation receiver

When connecting the external speaker or GPS navig ation rece iver, stri p off about 1 inch
(2.5 cm) of the specified wire’s insulati on.
NOTE

NOTE: Never short wires. This may lead to malfunctions.

NOTENOTE

4.4

4.4 OPTIONAL CMB16 FLUSH MOUN T INST ALLATION

OPTIONAL CM B16 FLUSH MOUNT INSTALLATION

4.4 4.4

OPTIONAL CM B16 FLUSH MOUNT INSTALLATIONOPTIONAL CM B16 FLUSH MOUNT INSTALLATION

1. Make a rectangular template for the flush mount measuring 2” H x 5-5/8” 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 accommodate the
transceiver (at least 6 inches deep).
There should be at least 1/2 inch b etween t he transceiver’ s heatsink an d 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 3).

5. Turn the adjusting screw to adjust the tension so that the transceiver is tight
against the mounting surface.

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5555 BASIC OPERATION

BASIC OPERATION

BASIC OPERATION BASIC OPERATION

5.1

5.1 RECEPTION

RECEPTION

5.1 5.1

RECEPTIONRECEPTION

1. After the transceiver has been installed, ensure that the power supply and antenna
are properly connected.

2. Turn the VOL/PWR knob clockwise to turn on the radio.

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 thresho ld.”

6. Press the UP or DOWN key to select t he desire d chann el. Refer to the chan nel chart
on page xx for available channels.

7. When a message is received, adjust the volume to the desired listening level. The
“BUSY” indicator in the L CD is dis play ed i nd icating t hat the c hanne l is b eing use d.

5.2

5.2 TRANSMISSION

TRANSMISSION

5.2 5.2

TRANSMISSIONTRANSMISSION

1. Perform steps 1 through 6 of RECEPTION.

2. Before transmitting, monitor the channel to ensure it is clear. THIS IS A FCC
REQUIREMENT!

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

4. Speak slowly and clearly into the microphone.

5. When the transmission is fi nished, release the PTT switch.
NOTE

NOTE: This is a noise-cancelin g micr opho ne. Th e oval slot o n the to p of microphon e

NOTENOTE
should be positioned within 1 inch (2.5 cm) from the mouth for optimum
performance.

6. Refer to page xx for standard transceiver operating procedures.

5.3

5.3 TRANSMIT TIME - OUT TIMER (TOT)

TRANSMIT TIME - OUT TIMER (TOT)

5.35.3

TRANSMIT TIME - OUT TIMER (TOT) TRANSMIT TIME - OUT TIMER (TOT)
When the PTT switch on the microphone is held down, transmit time is limited to 5
minutes. This prevents unintentional transmissions. About 10 seconds before auto matic
transmitter shutdown, a warning beep will be heard from the speaker(s). The
transceiver will automatically go to receive mode, even if the PTT switch is continually
held down. Before transmitting again, the PTT switch must first be released and then
pressed again.

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