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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

Retevis RT32 User Manual

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