GX400 27 MHz RADIO INSTRUCTION MANUAL
CONTENTS WARNING/SAFETY INFORMATION...................................................................................................... 3 INTRODUCTION................................................................................................................................. 3 INSTALLATION GUIDELINES................................................................................................................ 3 SUPPLIED WITH.............................................................................
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.
FEATURES • Ingress protection to IPX7* • LCD with lamp dimming function • Rotary squelch control • Channel scanning with memory • Two user programmable Priority channels • Dual Watch and Triple Watch functions • Advanced noise limiter (NL) circuitry • Surface mount technology • User selection of Australian 27 MHz marine or 27 MHz CB channels • Safety channel 88 for marine application (channel 8 for CB application) *Refer: http://www2.gme.net.
Rear Panel Extension Speaker 3.5 mm DC Connector Programming 2.
GENERAL OPERATION VOLUME ON/OFF To turn the GX400 on, briefly press the key. To adjust the volume, rotate the volume control. Rotate the volume control clockwise to increase the volume or counter-clockwise to reduce the volume. NOTE: At minimum volume setting there is still sufficient volume to be heard in a quiet cabin environment. To turn the GX400 off, press and hold the key again. SQUELCH CONTROL The squelch control is used to eliminate the background noise when there are no signals present.
SCANNING The Scan function allows a group of channels to be scanned for activity. Channels to be scanned can be programmed into the scan memory by the user. By default your GX400 is supplied with all channels in the scan memory. You can remove or add channels as desired. To determine if a channel is stored in the scan memory Select the required channel using the or key then check to see if ‘M’ is displayed to the right of the channel number.
To exit the Scan mode manually Briefly press the SCN key. ‘SCAN’ will disappear from the display. NOTE: Excessive noise on a channel can cause the scanner to pause on that channel even if there is no signal there. If this only happens on one channel, you may need to consider removing that channel from the scan memory. If it happens on all channels, you should try increasing the squelch setting.
To use the Dual Watch feature, adjust the Squelch control so the radio is quiet, select your preferred working or club channel then press the DW key. ‘DW’ will appear on the display and the channel display will alternate between Channel 88 and your selected channel. If a signal is received on your selected channel, the radio will pause on that channel but will continue to switch to Channel 88 and a brief interruption to the signal will be noticed.
while transmitting). Once the selected channel has become inactive for 2 seconds the Triple Watch will resume. To transmit on the selected channel while Triple Watching Simply press the PTT. The Triple Watch function will pause during the transmission and remain paused until 2 seconds after all activity has ceased on the channel. Triple Watch will then resume. To transmit on the Priority channel while Triple Watching Briefly press the PR1 key. The PR1 channel will then become the selected channel.
MARINE CHANNEL ASSIGNMENTS TABLE Channel Frequency Use 68 27.680 Commercial, ship-shore-ship 72 27.720 Professional shipping 82 27.820 Professional shipping 86 27.860 Secondary distress and safety 88 27.880 Primary distress and safety 90 27.900 Domestic ship-shore-ship 91 27.910 Domestic ship-shore-ship 94 27.940 Club events, ship-shore-ship 96 27.960 Ship to ship 98 27.
TRIPLE WATCH (CB MODE) The Triple Watch function is an extension of the Dual Watch feature. It allows the GX400 to monitor three channels – Channel 8, a selected channel and a Priority channel. Each channel is scanned equally for signals with priority given first to Channel 8, then the Priority channel and lastly the selected channel. When Triple Watch is selected, the ‘TW’ icon is displayed. The Priority channel used is the one stored in the PR1 memory.
To transmit on Channel 8 while Triple Watching Press the button. Triple watch will be cancelled and the radio will switch straight to Channel 8 (and ‘SAFETY’ will be displayed). Now press the PTT and transmit in the usual way. When your conversation has ended, press the button to deactivate the SAFETY channel then press the TW key to resume Triple Watching. 27 MHz CHANNEL ASSIGNMENTS Channel Frequency Suggested Usage Channel Frequency Suggested Usage 1 26.965 MHz General AM 21 27.
INSTALLATION GENERAL It is advisable to spend a little time selecting the best location for your GX400. The radio can mounted to a shelf or panel using the supplied gimbal bracket. Alternatively it can be flush mounted using an optional flush mount kit. Keep the following points in mind when choosing a location • T he GX400 is designed to meet IPX7 standard. However we recommended you select a location that will minimise excessive exposure to continuous rain or spray.
Flush Mounting The GX400 can be flush mounted using the optional MK008 flush mounting kit. A cutting template and full mounting instructions are provided with the kit. PR 1 SCN PR 2 NL VOL DW SQL TW 27MHz TRANSCEIVER Flush Mounting using the optional MK008 mounting kit DC CONNECTIONS Connect the RED power lead to the Positive (+) side of the battery or to an accessory point in the vessel or vehicle’s fuse box.
ANTENNA INSTALLATION It is essential to select a good quality, high efficiency, 27 MHz antenna. A poor quality antenna or one not designed for the specific frequency band you are using will give very poor performance. Since the GX400 is capable of being switched between the 27 MHz Marine and the 27 MHz CB Bands, it is important to connect an antenna suitable for the band you have chosen to use.
DISCONNECTING THE MICROPHONE It is recommended that the microphone be left permanently connected to the GX400, but if it must be disconnected, proceed as follows: 1. Using a small screwdriver, ease the rubber boot out of the 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. At the same time gently pull the plug from the socket (see diagram below).
SPECIFICATIONS* GENERAL Complies with: AS4367:2007 Frequency Range: 26 – 30 MHz Channel Set: Australian 27 MHz CB (26.965 – 27.405 MHz) Australian Marine (27.680 – 27.980 MHz) Modulation: AM (A3E) Supply Voltage: • 12 V DC nominal • 10.8 – 15.6 V DC range Frequency Error: ±1.
STANDARD COMMUNICATIONS WARRANTY AGAINST DEFECTS This warranty against defects is given by Standard Communications Pty Ltd ACN 000 346 814 (We, us, our or GME). Our contact details are set out in clause 2.7. This warranty statement only applies to products purchased in Australia. Please contact your local GME distributor for products sold outside of Australia. Local distributor details at: www.gme.net.au/export. 1. Consumer guarantees 1.
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 enquiries email: export@gme.net.
