User Manual

Linkx TG-288D

1. Device diagram and instructions

1. Antenna
2. Built-in Microphone
3. LCD display
4-1. Channel adjustment and earphone volume control in 2-way mode (Transmitter)
4-2. Channel adjustment
5-1. On / Off / Mute / Set button
5-2. On / Off / Set button
6-1. Microphone/ Headset input
6-2. Earphone / Headset output
7-1. Aux input
7-2. Aux output
8-1. Mic volume control
8-2. Two-way mode On / Off switch
8-3. Earphone volume control
8-4. Push to Talk button
9. Lanyard connection point
10. Belt clip (Option)
11. Label area
12. Battery compartment and AA type battery x 1
13. Micro-USB charging port

2. Reboot or restart when the LCD display is frozen or stuck

In the unlikely event that your tour guide system becomes frozen and unresponsive, you can attempt a force shut down by removing the battery, then put the battery back again and restart your guide system.

3. LCD Display Illustration

4. Microphone and Earphone Connection

TG-288DT transmitter has a built-in microphone, one external microphone-level headset input (3.5mm) and one auxiliary-level input (3.5mm).
You can choose to use the built-in microphone or external microphone. When you connect an external microphone to the transmitter, the built-in microphone is automatically disabled. Once you unplug the external microphone, the built-in microphone will resume its use again.

⚠ The built-in microphone can only be used in one-way mode.
⚠ Make sure that the microphone or the auxiliary device is connected to the correct input socket. The microphone will not operate properly if connect to the aux input socket.

TG-288DR Receiver has a separate earphone output / Headset connector (3.5mm) and an aux level output (3.5mm).
Connect the earphones to the 3.5mm earphone output or connect the recorder to the aux output to capture the content. Make sure the connectors are properly inserted in place.

5. Power On and Off

Press and hold the power button for 2 seconds to turn on the system. The LCD display will illuminate and retrieve the channel number used last time to indicate Power on successfully.
Press and hold the power button for 2 seconds to turn the Power off completely.

Note: Energy saving- Receiver will automatically power off if no signal is received after about 20min.

6. How to select a channel

The channel is preset to . If you wish to select a different channel, press and buttons simultaneously for 2 seconds. The sign starts flashing, then press or button to select your desired Press button briefly to confirm the selected channel or wait for approximately 5 seconds to automatically store the selected channel.

Note: Make sure that the transmitter and receiver(s) operate on the same channel. This symbol will appear to indicate that the receiver is receiving a good signal from the transmitter. The receiver display will keep flashing when no transmission signal is being received. (Q & A-O2)

Press both buttons for 2 seconds to unlock the channel setting.

Channel memory

TG-288 can automatically memorize the channel number. It will set to the last used channel when power on next time.

Channel SYNC - Automatic channel synchronization between transmitter and receiver

Within the same group, when you change the transmitter’s channel number, the receiver’s channel number is wirelessly synchronized to the new channel.

Press and hold the center of the three-way lever switch on the side of the device, the corresponding frequency will appear on the display.

7. How to adjust the volume

Transmitter

Transmitter mic volume is preset at level 4
Press down and up the button to decrease or increase the volume level. There are 4 adjustable levels from to
Press mute button briefly to mute the transmitter, press the same button once again to recover.

Receiver

Receiver earphone volume is preset at level
Press down and up the button to decrease or increase the volume level. There are 8 adjustable levels from to
The LCD display indicates no volume and in mute mode.

8. Battery autonomy and charging

When battery icon is displayed at fully autonomy the battery contains sufficient power.
When the battery icon is displayed as empty and flashing , this indicates low battery and only 5-10% battery remaining. Please replace a new battery or charge the rechargeable battery immediately via USB certified traveling charger (optional accessories) or appropriated Linkx charger station.
The charging current is set to 255 mA. For safety precautions, there is a safety timer that will terminate charging after 12 hours of continuous charging. Full charge battery provides approx. 14 hours of continuous operation for receiver and 12 hours of continuous operation for transmitter; however, please note that actual battery life varies based on user setting, usage patterns, environmental conditions, batteries’ manufacturer and other factors.
While charging, the battery icon displays on LCD back and forth.

Note : The transmitter or receiver will shut down automatically when charging is taking place. If you want to use the system while it’s charging, simply press the power button again to turn the system back on.

9. How to replace the battery

Step 1 Open the battery compartment cover

Step 2 Replace with a new battery.
(Make sure you follow the compartment cover correct polarity.)

Step 3 Close the battery compartment cover

10. Initiate Two-Way Communication Function

Transmitter

To activate the two-way mode, press the center of the 3-way lever switch on the side of the transmitter for 3 seconds or the external headset’s two-way talk button for 3 seconds. The two-way mode icon ““.
Attach the earpiece of the headset to your ear and press the “” button to adjust to appropriate earphone volume.
Confirm that the receiver has heard the transmitter loud and clear.
Press the same 3-way lever switch or the talk button again for 3 seconds, or unplug the headset to end this two-way communication function. The two-way mode icon will then disappear.

Receiver

When using an external headset HMR-18 or LMR-18

The Talk button is located on the center of the 3-way lever switch.
The receiver can make speech by press & hold the Talk button and speak to the built-in microphone on top. The two-way icon “” will flash when one of the receiver’s Talk button is pressed.
The earphone can hear the sound of its
own and the sound from the transmitter
and other receivers. button
Release the Talk button after the end and allow next receiver to speak.

⚠ The built-in microphone can only be used in two-way mode.

Use built-in microphone and external earpiece

The Talk button is located on the center of the 3-way lever switch, Receiver
or it is the push button on the external headset.
The receiver can make speech by press & hold the Talk button and speak to the built-in microphone on top. The two-way icon “”
will flash when one of the receiver’s Talk button is pressed.
The earphone can hear the sound of its own and the sound from the transmitter and other receivers.
Release the Talk button after the end and allow next receiver to speak.

⚠ The system only allows a single receiver to speak at the same time.

Microphone volume adjustment on the receiver

While pressing and holding the Talk button, you may adjust your microphone volume on the receiver by pressing the – / + button.

Quick double-click the talk button – receiver switches to permanent talk mode

When the receiver need to make long speech, quick double-click the talk button to lock it into talk mode. The receiver now has the talk priority over other received. You do not need to hold the talk button while talking. Briefly click the talk button to unlock this mode.