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I N S T R U C T I O N   M A N UA L  

 

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WARNING/SAFETY INFORMATION

The GX400 is a radio transmitting device. 

  Do not transmit near electrical blasting equipment or in explosive atmospheres.

  Do not allow children to operate a radio transmitter unsupervised.

   The antenna used for this radio must be properly installed and maintained and must 

provide a separation distance of at least 34 cm (13.4 inches) from all persons and must 
not be collocated or operated in conjunction with any other antenna or transmitter.  
Never transmit if any person is closer than the specified distance to the antenna. 

   Changes or modifications to this product or use of accessories not expressly approved by 

GME, or operation of this product in any way other than as provided in the GME Owner’s 
Manual could void your authority to operate this product.

INTRODUCTION

Congratulations. You have just purchased one of the most technically advanced 27 MHz radios 
in the world.

The GME GX400 is a 27 MHz AM radio that combines both Marine and Citizens Band functions 
into the one radio. The GX400 has a number of enhanced features including fully user 
programmable channel scanning, safety channel selection (Channel 88 in marine mode, Channel 
8 in CB mode), speaker microphone, two Priority channels and a backlit Liquid Crystal Display 
(LCD) with dimming function.

With its compact size and IPX7 design it can easily be installed into almost any mounting 
location in your boat, motor vehicle, motor cycle etc.

Please read this manual thoroughly to ensure you get the best from the GX400’s features.

For users in New Zealand, United States of America, Canada, South Africa or Papua New Guinea, 
please refer to amendment for local frequencies, channel allocations and licensing requirements.

INSTALLATION GUIDELINES

   Do not install the radio near an airbag or in an area where an airbag may deploy. If an 

airbag is obstructed by the radio, it may not deploy as expected. It could also propel the 
radio with enough force to cause serious injury.

   Avoid touching the heat sink at the rear of the radio while the radio is in use. The heat sink 

can become hot during prolonged use.

   Do not install the radio in front of a vehicle heater. The radio requires a cool airflow over the 

rear heat sink when transmitting to maintain efficiency. 

   Do not make unapproved modifications to the radio. Such modifications could void the 

warranty and cause the radio to operate outside its approved specifications.

SUPPLIED WITH

Cabin cover

Mounting bracket and gimbal knobs

Mounting hardware

Microphone bracket 

DC power lead

Instruction manual

Summary of Contents for G-COM GX400

Page 1: ...GX400 27 MHz RADIO I N S T R U C T I O N M A N U A L...

Page 2: ...8 Key Lock function 8 OPERATION ON THE AUSTRALIAN MARINE BAND 8 Dual Watch marine mode 8 Triple Watch marine mode 9 Triple Watch features 9 Marine Band procedures 10 Emergency procedures 10 OPERATION...

Page 3: ...ne mode Channel 8 in CB mode speaker microphone two Priority channels and a backlit Liquid Crystal Display LCD with dimming function With its compact size and IPX7 design it can easily be installed in...

Page 4: ...or tractor When you first install your GX400 it should default to the 27 MHz Marine Band When operating on the Marine Band the radio will display channels 68 98 and the key will default to safety Cha...

Page 5: ...tch Triple Watch Key Lock Noise Limiter Transmit Safety Channel Scan Memory Scan RX Busy Channel Display LCD Rear Mic Socket Antenna Socket Extension Speaker 3 5 mm Programming 2 5 mm factory use only...

Page 6: ...se CHANNEL SELECTION Select the required channel by briefly pressing the or keys The selected channel is displayed on the LCD Press and hold either key to quickly advance upwards or downwards through...

Page 7: ...ll disappear To scan Adjust the Squelch control so the radio is quiet then briefly press the SCN key A high beep will be heard SCAN will appear in the display and the channel numbers will change rapid...

Page 8: ...able To lock the keys press and hold the key for 1 second The icon is displayed and a high beep is heard To unlock the keys press and hold the key again The icon disappears and a low beep is heard OPE...

Page 9: ...e stored in the PR1 memory To use the Triple Watch mode first program your Priority channel into the PR1 memory then select your preferred working channel using the or keys Now briefly press the TW ke...

Page 10: ...s is Sea Spray Sea Spray Sea Spray Over Once contact has been established move straight to another channel e g 91 or 94 to continue your conversation leaving Channel 88 clear for emergencies or furthe...

Page 11: ...nother selected channel by quickly switching between them Any signals received on Channel 8 take precedence over signals on the selected channel To use the Dual Watch feature adjust the squelch contro...

Page 12: ...annel 8 Once Channel 8 has become inactive for 2 seconds the Triple Watch function will resume If a signal appears on the PR1 channel Scanning will pause on the PR1 channel but Channel 8 will continue...

Page 13: ...Use 5 27 015 MHz General AM 25 27 245 MHz General Use 6 27 025 MHz General AM 26 27 265 MHz General Use 7 27 035 MHz General AM 27 27 275 MHz General Use 8 27 055 MHz General AM 2 28 27 285 MHz Genera...

Page 14: ...ion speaker can be installed if required Components and currents in the radio create magnetic fields To avoid interference to compasses ships autopilot sensors etc the GX400 should be mounted at least...

Page 15: ...the Negative side of the battery or to a ground point in your vessel or vehicle IMPORTANT The RED power lead is fitted with a 2 Amp fuse If the fuse blows use only a standard 2 Amp 3AG fuse as a repl...

Page 16: ...sound to another part of your vessel e g If the radio is mounted inside the cabin the extension speaker can be used to monitor incoming calls while outside When the extension speaker is plugged in th...

Page 17: ...he cable entry hole and slide it along the microphone cable away from the front panel 2 Identify the plug locking lever work the screwdriver blade behind it and press the lever towards the plug body A...

Page 18: ...ive Sensitivity for 12 dB SINAD 30 Modulation 110 dBm Max Squelch 65 dBm Adjacent Channel Selectivity 55 dB Spurious Response Immunity 55 dB Conducted Spurious Radiation 57 dBm Audio Output Power 8 Oh...

Page 19: ...to any one of the following as we decide i The supplying of the services again ii The cost of having the services supplied again 2 4 For repairs outside the warranty period we warrant our repairs to b...

Page 20: ...mber 47121 5 A division of Standard Communications Pty Ltd Head Office PO Box 96 Winston Hills NSW 2153 Australia New Zealand PO Box 58446 Botany Auckland 2163 NZ T 09 274 0955 All international enqui...

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