Standard Horizon Marine Tranciever GX1255S Operating Instructions

GX1255SQUEST GX1255S
25 Watt VHF/FMMarine Transceiver
Owners ManuallRTCM SC-101 DSC Distress call with your exact posi-
tion when connected to a GPS
lCompact and Simple Operation
l3 year waterproof warranty
lBacklit Keypad and LCD displays latitude/longitude
when connected to a GPS
lChannel Name, GPS Time or GPS Position Repeating
shown on the display
lNOAA Weather Alert
lOne-button access to Channel 16 and 9
lAccess to all US, Canadian and International Channels
lVersatile User-programmable Scan,...

GX1255STABLE OF CONTENTS
SAFETY/WARNING INFORMATION...........................................................2
FCC RADIO LICENSE INFORMATION.......................................................3STATION  LICENSE..................................................................................................................................3RADIO  CALL  SIGN.................................................................................................................................3CANADIAN  SHIP...

GX1255SPage 1 7DSC / RADIO SETUP MODE...............................................................287.1  LAMP  ADJUSTING........................................................................................................................287.2  LCD  CONTRAST  ADJUSTING....................................................................................................287.3  KEY  BEEP (ON OR...

GX1255SPage 2Safety/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 of 0.6 m (2 feet).
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...

GX1255SPage 3FCC 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...

GX1255SPage 4FCC 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...

GX1255SPage 51  GENERAL INFORMATION
1.1  INTRODUCTION
The STANDARD HORIZON QUEST is a VHF/FM transceiver designed for
use in the frequency range of 156.025 to 163.275 MHz. The GX1255S 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-...

GX1255SPage 62  ACCESSORIES
2.1  PACKING 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 attaching hardware and hanger kit)
•Owner’s Manual
•Quick-Reference Card
•Power Cord
•Dust Cover
2.2  OPTIONS
CMB16...........................................................................Flush-Mount Bracket...

GX1255S3  INSTALLATION
3.1  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
3.2  ELECTRICAL CONNECTIONS
CAUTION
Reverse polarity connections will damage the...

GX1255S3.3  ACCESSORY CABLE
White: External speaker (+)
Shield: External speaker (–)
Blue: NMEA IN (+) from GPS navigation receiver
Green: NMEA IN (–) from GPS navigation receiver
Purple: Test port (for the Service Technician)
When connecting the external speaker or GPS navigation receiver, strip off
about 1 inch (2.5 cm) of the specified wire’s insulation.External Speaker
Green
Blue
Shield
WhiteBrown GreenWire Color/DescriptionWHITE - External Speaker (
+)SHILED - External Speaker (–)GREEN - NMEA...