Topsung Industrial T-228 User manual

Topsung Industrial Co.,Limited
OWNER’S MANUAL Model T-228
PLEASE READ THIS OWNER’S MANUAL CAREFULLY BEFORE USE. KEEP FOR
YOUR REFERENCE.
Speaker
Microphone
Function button
Call button
Talk button
Neck strap hole (rear view)
Belt clip (rear view)
Aerial
LCD display
Up button
Monitor button
Power button
Down button
Speaker / Microphone
Battery compartment (rear view)
Function description
1. Batteries: Use 3 “AAA” size batteries.
2. Belt clip: The belt clip is attached for easy use.
3. Call button: Press to transmit call tones.
4. LCD display: Displays current channel selection and other radio status symbols.
5. Power ** button: Press and hold the Power button to turn your unit on/off.
6. Channel Scan: Press the ▼and MENU buttons to activate the channel scan.
7. Channel Lock: Press and hold the ▲and MENU buttons for 2 seconds to lock/unlock the
channel.
8. MENU button: Channel and function selector.
9. MON button: Press to tune in and hold on to weak signals.
10. TALK button: Press to transmit.
11. Up ▲/ ▼Down buttons: Press to adjust the volume level and to change channels.
12. SPK/MIC socket: For an external microphone, earphone.
- Receiving icon, displayed when receiving a signal.
- Transmitting icon, displayed when transmitting a signal.
- Display of current volume.
- Displayed during the Channel Scan mode.
- Keyboard is locked.
- Display of the current battery level.
- Channel number. Changes from 1 to 8 as selected by the user.
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BATTERY INSTALLATION:
- Remove the belt clip by pulling the tab and sliding it up.
- Pull the battery door lock tab down to release the battery cover. Insert 3 “AAA” batteries.
- Put the battery cover back into place. Snap the lock tab and belt clip back into place.
- To use the radio, you must install 3 “AAA” size batteries.
Figure 1
Figure 2
Figure 3
WARNING:
- Do not mix old and new batteries.
- Do not mix alkaline, standard (carbon-zinc) or rechargeable batteries.
- Do charge the batteries for at least 10 hours when starting use.
- Always use alkaline batteries for replacement.
- Do not put batteries into a fire and do not expose them to high heat as they may explode.
- To use the radio, you must install 3 “AAA” size batteries.
Turning the unit on
Press and hold the ** button. The unit will beep and the LCD display will display the current
channel.
Turning the unit off
Press and hold the ** button. The unit will beep and the LCD display will turn blank.
Adjusting the speaker volume
- Press the ▲button to increase the speaker volume.
- Press the ▼button to decrease the speaker volume.
- The speaker volume level is indicated by the number of bars displayed in the lower left
corner of the LCD display.
RECEIVING COMMUNICATIONS:
- When the PMR is switched on and not being used for speech or paging, it is always in the
receiving mode.
- Pressing the TALK or Call buttons automatically overrides and turns off the receiving mode.
NOTE: In order for other people to receive your transmission, they must also be on the same
channel you are currently using. Refer to the "Changing Channels" section for more
information.
CHANNEL LOCK:
- This feature locks the channel so that the channel cannot be changed accidentally.
- To lock the channel, press the ▲and MENU buttons for 2 seconds until a beep sound is
heard. The lock symbol will appear on the display.
- To unlock the channel, press the ▲and MENU buttons for 2 seconds until a beep sound is
heard. The lock symbol will disappear.

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Changing channels
The unit has 8 available channels. To change channels:
1. Press the MENU button until the current channel number and [ch] icon flash on the LCD
display.
2. While the channel number is flashing:
- Press the ▲button to move to a higher channel.
- Press the ▼button to move to a lower channel.
- The channel changes from 1 to 8, or from 8 to 1.
3. Press the TALK button or MON button to choose the desired channel and return to normal
mode, or press the MENU button to confirm the channel and go to the call ring melody option.
Setting the call ring melody
The unit has 5 call ring melodies to select from.
1. Press the MENU button twice until the number of the current ring (1, 2, 3, 4, 5, oF) and the
[CR] icon flash on the LCD display.
2. Press the ▲or ▼button to select your call ring melody.
3. Press the TALK button to choose the desired call ring and return to normal mode, or press
the MENU button to confirm the call ring and go to the button tone option.
Setting the button tone
1. Press the MENU button three times.
2. Press the ▲or ▼button to select ‘on’ or ‘off’.
3. Press the TALK button to confirm the setting and return to normal mode, or press the
MENU button to go to the PTT tone option.
Setting the PTT tone
1. Press the MENU button four times.
2. Press the ▲or ▼button to select ‘on’ or ‘off’.
3. Press the TALK button to confirm the setting and return to normal mode.
RESPOND PROMPT TONE:
When transmission is finished and the TALK button is released, the corresponding radio will
hear a tone and will be ready for transmission.
CHANNEL SCAN:
- Your radio can scan across 8 channels allowing it to search other radios without changing
channels.
- To scan: press the ▼and MENU buttons to activate the channel scan. The channel number
will run rapidly on the display. When a signal is detected, the channel scan pauses keeping the
active signal broadcasted.
- Press the TALK button to communicate (the Channel Scan is deactivated). When the active
signal is detected and another channel is desired, press the ▼button to search for another
active channel.
- To stop the scanning operation, press the MENU button again.
Calling (paging) another radio

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The volume of the incoming call (page) tone is set by turning the volume button on top of the
receiving unit. To send a page or call:
- Make sure both units are on.
- Turn the volume up to an audible level.
- Set both units to the same channel.
- Press and release the Call button on the front of your radio.
The other unit will make a 2 second call (page) tone. They can then respond to your call by
either:
- pressing the TALK button and speaking into the radio, or
- pressing the Call button, which activates a 2 second call (page) tone on your radio.
AUTOMATIC SQUELCH:
The PMR is equipped with an automatic squelch circuitry filtering out weak transmission and
unwanted noise, usually caused by terrain conditions.
MONITOR:
- This feature turns off the automatic squelch feature, either momentarily or continuously. It
helps in receiving signals to its maximum range, but may pick up static signals, too.
Momentary monitor:
- Press the MON button; the monitor symbol will appear.
- Release the button to restore the automatic squelch.
Continuous monitor:
- Press the MON button for more than 2 seconds until a beep sound is heard. The monitor
symbol will appear.
- To restore the automatic squelch, press and release the MON button again.
NOTE: You cannot transmit when the Monitor feature is activated.
Low battery indicator
When the batteries need to be changed, the battery level icon will flash. To ensure
uninterrupted communication, recharge or replace the batteries as soon as possible.
Automatic battery save
Your PMR has a special circuitry designed to extend the life of your batteries. When the radio
is not used for 4 seconds, it will switch itself into a low power mode.
The battery save mode does not affect the radio’s ability to receive transmissions. When a
signal is detected, it automatically returns to full power.
External speaker / microphone
Your PMR can be used with an optional external microphone and speaker, usually sold
together in an ear bud/mic combination.
The socket is located under the protective rubber cover on the right hand side of the unit. To
attach an external speaker / microphone headset or ear bud/mic, lift the rubber flap on the
right of the unit to expose the socket. Insert the appropriate plug into the correct socket.
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