Retevis RT32 Mode D'emploi page 5

4. Receiving/Transmitting communications:
The devices are in 'Reception' mode when lit up, i.e. they are ready to
receive a call or sound transmitting on the activated frequency.
• When you press the Call tone button (12), the device switches
to 'Transmission' mode. You are then transmitting a sound signal
to the other device.
• To send a voice message, press the TALK button (15) and speak into the
microphone (10). Continue to press the button until you have finished
transmitting your message.
Hold the Mic with a minimum distance of 5 cm from your face.
Note:
- The other device must be set to the same channel and same
CTCSS code.
- When you finish the communication, please lose the hand, the
other device will email the beep to indicate that the this device is
ready to transmit.
5. Changing Channels
• Press the MENU button (11) once, the current channel number flashes on
the display.
• Press the ▲ button (4) or ▼ button (7) to change the channel .
• Press the TALK button to (15) confirm and return to stand-by.
Note: If no button is pressed within 15 seconds during setting, the unit will
return to standby .
6.CTCSS (Continuous Tone Coded Squelch System)
Licence free radio's operating on the 400~470 MHZ frequency band, like
the Twintalker, have 8/20/22 available radio channels. If there are many
radio's users in your neighborhood, there is a chance that some of these
users are operating on the same radio channel. To prevent that you receive
signals from other users, sub-channels have been integrated.
Two radios only be able to communicate with each other not only on the
same channel but also set to the same sub-channels.
The sub-channels:continuous tone squelch system(CTCSS)
When using CTCSS, a low frequency tone(67-250Hz)will be transmitted
along with the voice signal. There are 99 available tons to choose.
Note: To disable CTCSS, select code "0F" for CTCSS in the menu.
When pressing TALK button to confirm.
7.CTCSS
• Press the MENU-button (11) twice: The current CTCSS code flashes
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onthe display.
• Press the ▲-button (4) or the ▼-button (7) to change to another code.
• Press the TALK-button (15) to confirm and return to stand-by.
Note: To disable CTCSS, select code "0F" for CTCSS in the menu.
Whe pressing TALK button to confirm
8.Monitor
You can use the monitor feature to check for weaker signals in the
current channel.
• Press the MON-button to activate channel monitoring.
• Press the MON-button to stop channel monitoring.
Note: During channel monitoring the receiver circuit in the Radios
will not not listen to CTCSS codes.
9. VOX Selection
The radios is capable of voice activated (VOX) transmission. In VOX
mode,the radio will transmit a signal when it pick up your voice or other
sound around you. VOX operation is not recommended if you plan to use
your radio in a noisy or windy environment.
Note: VOX mode will be overrided when you press the TALK-button (15).
• Press the MENU(11) three times, the current VOX setting
flashes on the display and the VOX icon is displayed.
• Press ▲-button (4) to set the VOX sensitivity level between 1 and 3 (level
3 is the most sensitive level).
• Press ▼-button (7) until OF appears on the display, to turn VOX off.
• Press the TALK -button (15) to confirm and return to stand-by.
10.Scanning for an active radio channel
• Press the SCAN-button (21):The 'Scan' function indicator (17) will appear
on the screen and the channel (18) will scan continuously from 1 to
8/20/22.
• Press the ▼ -button (7) to start the channel scan from 8/20/22 to 1.
Once an active channel is found, the scanning will stops and you can listen
to the transmission.
When the transmission on the found channel stops, the scanning will
resume automatically.
NOTE: If you press the TALK button (15) while listening to a found
channel,the Radios will go back in stand-by on the found channel.
11. Call Tones
A call tone alerts others that you want to start talking.
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