GME TX6155 - User Manual

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Overview

Important Technical Specifications
Usage Features
Maintenance Features
Safety Information
Physical Properties
Warranty

The GME TX685 and TX6155 are compact UHF CB radios designed for reliable communication. The TX685 offers 3 and 1 watt RF power, while the TX6155 provides 5 and 1 watt RF power, allowing users to conserve battery by selecting lower power when transmitting over short distances. Both models are equipped with 80+ channels for 477 UHF CB operation.

Important Technical Specifications:

Frequency Range: 476.425 - 477.4125 MHz
Channel Spacing: 12.5 kHz
Number of Channels: 80 (75 voice, 2 telemetry RX only, 3 for future use)
CTCSS Codes: 50
DCS Codes: 104
Dimensions (W x H x D): 57 mm x 102 mm x 35 mm (without antenna)
Compliance: AS/NZS 4365: 2011
Power Source: Li-Ion rechargeable - 7.4V DC, 2600 mAh
Operating Time (TX6155): Low Power: Up to 30 hrs, High Power: Up to 18 hrs (Transmit 5%, Receive 5%, Standby 90%)
Operating Time (TX685): Low Power: Up to 30 hrs, High Power: Up to 22 hrs (Transmit 5%, Receive 5%, Standby 90%)
Usable Sensitivity: -121 dBm
Maximum Audio Output: >0.5 watt max. (8 Ohm)
Modulation Distortion: <5% (1 kHz 70%)
Transmit Power (TX6155): Hi 5 watts, Lo 1 watt
Transmit Power (TX685): Hi 3 watts, Lo 1 watt

Usage Features:

Power On/Off and Volume Adjustment: Rotate the VOLUME control clockwise past the 'click' to turn the radio on and adjust volume. Counter-clockwise past the 'click' turns the radio off.
Display Lighting: The LCD backlight activates automatically when a key is pressed and turns off after about 5 seconds.
Receiving Signals: In standby mode, the radio conserves battery. A GREEN LED and the receive icon (≫≫≫≫) appear on the display when a signal is received. If the signal is encoded with a matching CTCSS or DCS tone, the LED lights ORANGE, and the signal is heard.
Transmitting: Press and hold the PTT (Push-To-Talk) switch. The LED lights RED, and the transmit icon (≫) appears. Release PTT to receive.
Call Alarm Melody: Press the PTT twice quickly to send a Call Alarm melody, alerting other users on the same channel. The transmit icon (≫) and RED LED will appear for about 5 seconds. This can only be sent once per minute.
Channel Selection: Use the ▲ or ▼ keys to step up or down channels. Hold them to scroll quickly.
Squelch: Eliminates background noise when no signals are present. Briefly press the SQL key to open the squelch and check for channel activity. The LED will light GREEN, and the ▪◄∈ and ≫≫≫≫ icons will appear. Press SQL again to close. Squelch sensitivity can be adjusted in the Menu (1-5 or Auto).
Keypad Lock: Prevents accidental key presses. Press F then hold the 8 key until the radio beeps to activate. The 8 icon will appear. Repeat to deactivate.
Duplex Operation: Allows transmission on a different frequency than reception, enabling communication through repeater stations for increased range. Works on designated repeater channels (1-8 and 41-48). When enabled, the ▲ icon is displayed. Set via the Menu.
Scanning: Monitors a sequence of selected channels for incoming signals.
- Selecting Channels for Scanning: Use ▲ or ▼ to select a channel, then hold the SCAN key until the radio beeps. The scan memory icon ( ) will be displayed. Repeat for more channels.
- Removing Channels from Scan Group: Select the channel, then hold the SCAN key until the radio beeps. The scan memory icon ( ) will disappear.
- Scanning Selected Channels: Briefly press the SCAN key. The scan icon ( ) will flash, and channel numbers will change. Use ▲ or ▼ to change scan direction.
- Exiting Scan Mode: Briefly press SCAN again.
- Scanning Features: Pauses on a received signal for 5 seconds of inactivity before resuming. Pressing PTT during a scan will jump to the working channel (the channel active when scan was initiated).
CTCSS & DCS (Continuous Tone Coded Squelch System & Digital Coded Squelch): Quieting systems that allow groups to share channels without disturbance. CTCSS uses 50 low-frequency tones, DCS uses 104 digital codes. When enabled, only signals with matching codes are heard. Set via the Menu. The S (for CTCSS) or S (for DCS) icon is displayed.
Silent Mode: Once a CTCSS or DCS code is selected, press and hold the SQL key for about 2 seconds on a channel to enable Silent Mode. The selected code number will be displayed. The channel remains silent unless a signal with the chosen tone/code is received. Repeat to disable.
Transmitter Power Selection: Set to High ('Hi') or Low ('Lo') via the Menu. 'Hi' or 'Lo' icon indicates the setting.
Voice Scrambler: Uses band inversion for scrambled communications, compatible with most other manufacturers' scramblers. Enable/disable via the Menu. The SCR icon is displayed when active. All channels are scrambled when enabled.
VOX Settings: Allows hands-free conversations. The microphone detects voice and transmits without pressing PTT. Set sensitivity (1-3) or disable ('oF') via the Menu. The VOX icon ( ) is visible when enabled.
Roger Beep Tone: A tone automatically transmitted when the PTT switch is released, signaling the end of transmission. Enable/disable ('on' or 'oF') via the Menu. The ROG icon is displayed when active.
Button Beep: Provides a confirmation beep when keys are pressed. Enable/disable ('on' or 'oF') via the Menu. The button beep icon ( ) is displayed when active.
Call Alarm Selection: Choose from 5 user-selectable melodies to alert other users. Preview melodies (1-5) or disable ('oF') via the Menu.
Dual Watch: Monitors two channels simultaneously.
- Setting Dual Watch: Select the 'current' channel, then press and hold MENU until 'du' flashes. Use ▲ or ▼ to select the second 'Dual Watch' channel or 'oF' to disable. The * icon is displayed when active, and the LCD alternates between the two channels.
- Dual Watch Operation: Pauses on a busy channel for 5 seconds after transmission ceases. Press PTT on a paused channel to talk on it. Press PTT when no signals are received to talk on the selected channel. Briefly press SCAN to stop Dual Watch.

Maintenance Features:

Battery Charging:
- Initial Charge: New Li-Ion battery packs should be fully charged before first use.
- Desktop Charger (BCD020 - TX685/TX6155): Plug the PS002 AC adapter into a 240V outlet and connect to the charger. The LED will flash Red, Green, Amber, then Off. Place the radio in the cradle; the LED will be RED while charging and GREEN when fully charged (approx. 4 hours).
- Dual Desktop Charger (BCD021 - TX6155TP): Charges two battery packs sequentially (approx. 8 hours total). The front slot has priority. The left LED is RED for the front slot charging, and the right LED is AMBER for the rear slot on Stand-by. Once the front is GREEN, the right LED turns RED for the rear slot charging, then GREEN when complete.
- Vehicle Charging: The desktop charger can be powered by the optional BCV007 vehicle accessory charger.
- Low Battery Alert: The battery icon blinks, and an audio tone sounds when the battery is low.
Conserving Battery Power:
- Standby Mode: The radio automatically enters 'Standby' when inactive, drawing less power.
- Use CTCSS/DCS: Keeps the radio in Standby until a signal with the selected tone/code is received.
- Avoid Scanning: Scanning draws more power than monitoring a single channel.
- Use Low Transmit Power: Reduces transmitter power to 1 watt, effectively doubling talk time for short distances or close to repeaters.

Safety Information:

Keep the antenna more than 25 mm from the head or body when transmitting.
Do not transmit near electrical blasting equipment or in explosive atmospheres.
Do not allow children to operate unsupervised.
Never connect the radio to a power source other than the supplied battery.
Do not place the radio in front of a vehicle airbag.
Do not use with a damaged antenna.
Do not modify the radio.
Always charge at normal room temperature.
Switch off where two-way radio or mobile phone use is restricted.
Only use GME approved rechargeable battery packs with the supplied charger.
Avoid storing or charging in direct sunlight.
Avoid storing or using where temperatures are below -20°C or above +60°C.

Physical Properties:

Water & Dust proof IP67: Provides protection against dust and temporary immersion in water.
Removable Flexible Antenna.
Rugged Construction with Die-cast Chassis.
Waterproof/Dustproof speaker microphone – Rated IP67 (for TX6155).

Warranty:

477 MHz UHF CB portable radios: 2 years
Li-Ion battery packs: 1 year

GME TX6155 Specifications

General

Brand	GME
Model	TX6155
Category	Two-Way Radio
Language	English