Page 2 - TABLE OF CONTENTS
GX1256S Page 2 TABLE OF CONTENTS SAFETY/WARNING INFORMATION .......................................................... 4FCC RADIO LICENSE INFORMATION ...................................................... 5 STATION LICENSE ................................................................................
Page 4 - SAFETY / WARNING INFORMATION; Antenna Installation:
GX1256S Page 4 SAFETY / WARNING INFORMATION This radio is restricted to occupational use, work related operations onlywhere the radio operator must have the knowledge to control the exposureconditions of its passengers and bystanders by maintaining the minimumseparation distance of 0.6 m (2 feet). F...
Page 5 - FCC RADIO LICENSE INFORMATION; STATION LICENSE; Industry Canada; FCC/ INDUSTRY CANADA INFORMATION
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 inU.S. waters which is under ...
Page 6 - FCC NOTICE; NOTICE
GX1256S Page 6 FCC NOTICE NOTICE Unauthorized changes or modifications to this equipment may void com-pliance with FCC Rules. Any change or modification must be approvedin writing by STANDARD HORIZON. NOTICE This equipment has been tested and found to comply with the limits fora Class B digital devi...
Page 7 - GETTING STARTED; ABOUT VHF RADIO
GX1256S Page 7 GETTING STARTED ABOUT VHF RADIO The radio frequencies used in the VHF marine band lie between 156 and158 MHz with some shore stations available between 161 and 163 MHz.The marine VHF band provides communications over distances that areessentially “line of sight” (VHF signals do not tr...
Page 8 - COAXIAL CABLE
GX1256S Page 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 diameterand construction. For runs less than 20 feet, RG-58/U, about 1/4 inch in diameter is a goodchoice. For runs over 20 feet bu...
Page 9 - GENERAL INFORMATION; The STANDARD HORIZON
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 wattor 25 watts. The transceiver is capable of RTCM SC101 D...
Page 10 - PACKING LIST; Mounting Bracket (with attaching hardware and hanger kit); OPTIONS
GX1256S Page 10 2 PACKING LIST When the package containing the transceiver is first opened, please checkit 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 • Powe...
Page 11 - INSTALLATION; LOCATION; • is far enough from any compass to avoid any deviation in compass; ELECTRICAL CONNECTIONS; CAUTION
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 ...
Page 13 - CONNECTION OF GPS WITH NMEA OUTPUT; Additional Information:; CHECKING GPS CONNECTION; POS
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 Baudin 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 manuf...
Page 14 - OPTIONAL MMB-84 FLUSH MOUNT INSTALLATION; Make a rectangular template for the flush mount measuring 2” H x
GX1256S Page 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 ...
Page 15 - OPTIONAL CMP25 RAM+ MIC INSTALLATION; RAM MIC CONNECTOR
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 Gas...
Page 16 - CONTROLS AND INDICATORS; CONTROLS AND CONNECTIONS; Secondary Use
GX1256S Page 16 5 CONTROLS AND INDICATORS NOTE This section defines each control of the transceiver. See Figure 4 forlocation of controls. For detailed operating instructions refer to chapter6 of this manual. 5.1 CONTROLS AND CONNECTIONS POWER SWITCH/VOLUME CONTROL Turns the transceiver on and off a...
Page 17 - Figure 4. Controls and Connectors
Page 21 - BASIC OPERATION; TOT
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”...
Page 22 - NOAA WEATHER CHANNELS
GX1256S Page 22 6.4 SIMPLEX/DUPLEX CHANNEL USE Refer to the VHF MARINE CHANNEL CHART (page 60) for instructions onuse 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 cann...
Page 24 - CHANNEL 16 USE; Mayday; CALLING ANOTHER VESSEL; Use of channel 16 for hailing must be limited to initial contact
GX1256S Page 24 6.9 EMERGENCY ( CHANNEL 16 USE ) Channel 16 is known as the Hail and Distress Channel. An emergency maybe defined as a threat to life or property. In such instances, be sure thetransceiver is on and set to CHANNEL 16. Then use the following procedure: 1. Press the microphone push-to-...
Page 25 - MAKING TELEPHONE CALLS; Public Correspondence
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 initialcontact. When the hailing channel (16 or 9) is clear, s...
Page 27 - PRIORITY SCANNING; : When DSC Scanning method is enabled. Default is DSC scan is ON.; POSITION INDICATION; To hide the position information, press and hold the
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...
Page 28 - • Key beep will be on.
GX1256S Page 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 TIMEon the upper side, if connected to a GPS receiver. NOTE The TIME OFFSET should be set to local time in the DSC/RADIO setupmode when the ra...
Page 29 - DIGITAL SELECTIVE CALLING
GX1256S Page 29 7 DIGITAL SELECTIVE CALLING 7.1 GENERAL WARNING This radio is designed to generate a digital maritime distress and safetycall 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 ch...
Page 30 - “RADIO SETUP” appears.
GX1256S Page 30 7.2 DSC SCAN When the radio is shipped from the factory it is programmed so CH70 (theDSC channel) is scanned at all times. There is a selection in the SETUPMENU to disable the DSC SCAN. However, turning off DSC SCAN will dis-able the radio from receiving DSC calls i.e.: Individual Ca...
Page 40 - ADVANCED DSC CALLS
GX1256S Page 40 7.8 ADVANCED DSC CALLS 7.8.1 Group Call This feature allows the user to contact a group of specific vessels (examplemembers 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 Fo...
Page 47 - LCD CONTRAST ADJUSTING
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). ...
Page 48 - ON or OFF
GX1256S Page 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 ...
Page 49 - CHANNEL NAME CHANGE
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 ...
Page 51 - RAM+ MIC OPERATION; ) is connected to the remote
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 canuse the remote control operation except for a few functions. The RAM+ Micsupplied with 23 feet (7 m) of routing cable ...
Page 54 - INTERCOM OPERATION; NOTE
GX1256S Page 54 sent, the radio will sound a Distress Alarm. 4. The transceiver “shadow-watches” for a transmission on CH16 or CH70 until an acknowledgment signal isreceived. “DISTRESS” and “WAITING” will appear onthe LCD. 5. If an acknowledgement is received, select channel 16 and advise your distr...
Page 56 - 0 MAINTENANCE; REPLACEMENT PARTS; Commonly requested parts, and their part numbers are listed below.
GX1256S Page 56 10 MAINTENANCE The inherent quality of the solid-state components used in this transceiverwill provide many years of continuous use. Taking the following precautionswill prevent damage to the transceiver. • Keep the microphone connected or the jack covered at all times to pre-vent co...
Page 57 - FACTORY SERVICE; Marine Division of Vertex Standard
GX1256S Page 57 10.2 FACTORY SERVICE In the unlikely event that the radio fails to perform or needs servicing, pleasecontact your Dealer or Marine Division of Vertex Standard . An “RA” Return Authorization number is not necessary to send a product infor service. Include a brief note describing the p...
Page 58 - TROUBLESHOOTING CHART
GX1256S Page 58 10.3 TROUBLESHOOTING CHART PROBABLE CAUSE No DC voltage to thetransceiver, or blownfuse. R e v e r s e d p o w e rwires. Engine noise. External cable. Antenna. The power supply volt-age is too high or toolow. External cable. S e t t i n g o f t h e G P Snavigation receiver. REMEDY a....
Page 59 - CHANNEL ASSIGNMENTS
GX1256S Page 59 11. CHANNEL ASSIGNMENTS Tables on the following columns list the VHF Marine Channel assignmentsfor 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 V essel T raffic S ystem. 2. Alpha ...
Page 69 - 3 SPECIFICATIONS
GX1256S Page 69 13 SPECIFICATIONS Performance specifications are nominal, unless otherwise indicated, andare subject to change without notice. 13.1 GENERAL Channels ............................................ All USA, International and CanadianInput Voltage ............................................
Page 70 - MEMO
Page 72 - Marine Division of VERTEX STANDARD
GX1256S Page 72 Marine Division of VERTEX STANDARD US Headquarters 10900 Walker Street, Cypress, CA 90630, U.S.A. www. standardhorizon.com Copyright 2004VERTEX STANDARD CO., LTD.All rights reserved. No portion of this manualmay be reproducedwithout the permission ofVERTEX STANDARD CO., LTD. 0401b-0Y...
