GME TX3120S User Manual
Page 2

PA G E 2
I N S T R U C T I O N M A N UA L
T X 3 1 2 0 S
SUPPLIED WITH
TX3120S Radio
DC Lead
Mounting Cradle
Screw pack and Adaptor
Microphone
Instruction Manual
Microphone clip
CONTENTS
SUPPLIED WITH ...................................................2
INTRODUCTION ..................................................3
IMPORTANT INFORMATION CONCERNING UHF
CB RADIO ...........................................................3
POSSIBLE ISSUES .................................................3
EMERGENCY CHANNELS.....................................4
TELEMETRY CHANNELS .......................................4
FEATURES ...........................................................4
GENERAL OPERATION .........................................6
Front Panel Controls ............................................6
Rear Panel...........................................................6
LCD Panel ...........................................................7
Microphone ........................................................7
ON/OFF Switch ....................................................8
Volume ...............................................................8
Minimum Volume Setting (VMIN) .........................8
Receive Audio Mute ............................................8
Selecting Channels ..............................................8
Configuration Menu ............................................9
Flipping the Display ...........................................11
Squelch .............................................................11
Signal Meter .....................................................12
Transmitting ......................................................12
Time-out Timer ..................................................12
Backlighting ......................................................12
Dynamic Volume Control (DVC) .........................14
Voice Scrambler .................................................14
Beep Tone Volume .............................................15
Silent Squelch Tail ..............................................15
Disabling the Internal Speaker ...........................16
Repeaters and Duplex .......................................16
Priority Channel ................................................18
Scanning ...........................................................18
Open Scan ........................................................19
Group Scan .......................................................21
Network Scan (Net-Scan) ...................................22
CTCSS & DCS ....................................................24
INSTALLATION ..................................................26
Fitting the Radio ...............................................27
Antenna Connection .........................................30
Microphone Connection ....................................31
WIRING ............................................................31
DC Power Connection .......................................31
Noise Suppression .............................................32
CTCSS TONE FREQUENCY CHART ......................33
DCS CODE CHART .............................................34
UHF CB OPERATING FREQUENCIES ...................35
SPECIFICATIONS ...............................................36
SC WARRANTY AGAINST DEFECTS ....................38