Retevis RT602 User manual
M
C
RT602
RT602
3.CTCSS / Menu option
PIC 01
14.PTT Button
9.Call/Scan Button
10.Speaker
7.Up Button
8.Down Button
11.Microphone
1.Antenna
6. Lamp Button
19.Lamp
15.Channel/Menu item
TX RX
SCAN
13.Power Button
4.TX/RX Icon
12.MENU/
Button
Keypad
Lock
5.Volume
16.Scanning
17.Vox
18.Lock 2.Battery Level
M
C
1
PIC 02
23
20
21
2
EN~ Instructions for use
This set includes 2 walkie-talkie units: these are communication
devices which operate on mobile radio frequencies. They come
with 22 channels as well as a back-lit LCD screen, enabling you to
communicate over several kilometres free-of-charge.
NOTE: Please read these user instructions carefully before using
the equipment and retain for future consultation!
● If you carry any kind of personal medical device, consult a
doctor before use.
● To avoid the risk of burns, do not use the device if the antenna
is damaged in any way.
● Do not use the device in a potentially explosive environment
(e.g.around petrol pumps, on the lower deck of a boat or around
a fuel storage installation or chemical products)
● Switch off the device if on an airlane or in a hospital.
● Never use the device in close proximity to a radio to avoid
interference.
● Remove the batteries if the device is not in use for an extended
period of time. Never mix used and new batteries.
● Put the transmitter and antenna at least 5 cm from your face.
Direct the antenna upwards and speak normally.
● Clean the device with a damp cloth. Do not use of cleaning
agents and solvents.
● Do not modify the device in any way. If the device is damaged,
Please make it checked by a qualified professional.
● The device cannot be used to contact the emergency services.
SPECIFIC RECOMMENDATIONS
3
ITEM DESCRIPTION (Pic 01,02)
1. Antenna
2. Battery level indicator
3. CTCSS / Menu option -value
4. RX icon -Displayed when receiving
TX icon -Displayed when transmitting
5. Volume level indicator
6.
7. Adjustor button Up (▲)
8. Adjustor button Down (▼)
9. Call/SCAN button(C)
10. Loud speaker
11. Microphone
12. M: Enter the menu settings
13. On /off button( )
14. Push to talk (PTT)button
15. Channel/Menu item indication
16. Scanning indication:
Displayed during scan mode
17. VOX indication
18 Keypad lock indicator
20. Belt attachment clip
21. Battery compartment cover latch
22. Batteries
23. Battery compartment
Lamp Button
.
19. Lamp
4
BEFORE USE (Pic 02)
To insert batteries into the devices, first remove the belt attach-
ment: lift the attachment clip (20) and press the belt attachment
upwards. Release the Battery compartment cover latch (21) lo-
cated on the rear side of the unit. Open the battery compartment
(23) and insert 3 AAA batteries or NI-MH rechargeable batteries
(22)(not supplied), ensuring that the poles are correctly aligned.
Then close the lid.
USING THE TWINTALKER
1. Turning the device on/off: To turn the devices on or off, press
the on/off button (13) for 3 seconds, there will be a BEEP sound
to confirm.
2. Adjusting the volume: To increase the volume, press the Up
adjustor button ▲ (7) and press the Down ▼ (8) button to de-
crease volume.
Note: The volume level (5) is displayed on the screen.
3. Battery Charge Level/Low Battery Indication
The battery charge level is indicated by the number of squares
present inside the battery icon on the LCD Screen.
Battery Full
Battery 2/3 charged
Battery 1/3 charged
Battery empty
When the battery power is low, the battery icon will flash and there
will be a beep indicating that the batteries need to be replaced or
recharged.
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 transmitted on the activated frequency.
When you press the Call tone button (9), the device switches to
'Transmission' mode. There will be sound signal from the walkie
talkies.
● To send a voice message, press the PTT button (14) and speak
into the microphone (11). Continue to press PTT the button until
you finish talking.
Hold the microphone a minimum of 5 cm from your face.
Note:
- The other device must be set to the same channel and have set
the same CTCSS code(see point 7)
- When the transmission is complete and you can release PTT
button (14), the other device will emit a sound (BEEP) to indicate
that this device is ready to transmit.
5. Changing Channels
● Press the MENU button (12)once, the current channel number
flashes on the display.
● Press the - ▲ button (7) or the - ▼ button (8) to change the
channel.
● Press the PTT - button to (14) confirm and return to stand-by
Mode.
Note: If no button is pressed within 15 seconds during setting, the
unit will return to standby.
●
6
6.CTCSS (Continious Tone Coded Squelch System)
License free radio's operating on the 462.5625~467.7250 Mhz
frequency band, like the kids walkie talkie , have 22 available
channels channels. If there are many walkie talkie users in your
neighborhood, there is a chance that some of these users are
operating on the same channel. To prevent that you receive
unknown signals from other users, sub-channels will be needed.
Two radio's will only be able to communicate with each other not
only operating on the same channel but also the same sub-channel.
There are two kind of sub-channels :
● Continuous Tone Coded Squelch System (CTCSS)
When using CTCSS, a low frequency tone (between 67 and 250
Hz) will be transmitted along with the voice signal. There are 38
available tones to choose from. You are free to choose one of
these 38 available tones. Due to filtering, these tones will
generally not be audible so they will not disturb the
communication.
7.CTCSS
● Press the PTT-button(14) twice : The current CTCSS code
flashes on the display.
● Press the ▲-button(7) or the ▼-button(8) to change to another
code.
● Press the PTT-button(14) to confirm and return to stand-by mode.
Note: To disable CTCSS, select code "0F? for CTCSS in the menu.
When pressing PTT button to confirm, "OF" will be displayed.
7
8. VOX Selection
The walkie talkie has VOX function. In VOX mode, the walkie talkie
will transmit a signal when it is activated by your voice or other
sound around you without pressing PTT button. VOX operation is
not recommended if you plan to use your walkie talkie in a noisy or
windy environment.
Note: VOX mode will be overrided when you press the PTT - button
“”.
● Press the MENU- button(12) three times, the current VOX setting
flashes on the display and the VOX icon is displayed.
● Press to set the VOX sensitivity level between 1 and 3
(level 3 is the most sensitive level).
● Press until “OF” appears on the display,to turn VOX OFF.
● Press the PTT-button(14) to confirm and return to stand-by mode.
9. Scanning for an active radio channel on the same CTCSS
● Press CALL -button(9) for 3 seconds : The 'Scan' function
indicator (16) will appear on the screen and the channel (15)
will scan continuously from 1 to 22.
● Press the ▼-button(8) to start the channel scan from 22 to 1.
Once an active channel is found, the scanning will stop 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 PTT button(14) while listening to a found
channel, the Radios will go back in stand-by mode on the
found channel.
14
▲-button(7)
▼-button(8)
8
10. Call Tones
A call tone alerts others that you want to start talking.
1. Setting the Call Tone
The Walkie talkie has 10 different call tones.
● Press the MENU- button(12) four times, “CA” is displayed and
the current call tone is flashing.
● Press the ▲-button(7) or the ▼-button(8) to change to another
Call Tone.
● Press the PTT - button(14) to confirm and return to stand-by
Mode.
2. Sending a call Tone
Press the CALL-button(9) briefly. The call tone will be transmitted
on the set channel.
11. Key-Tone On / Off
When a button is pressed, the unit will beep briefly.
To set the key-tone.
● Press the MENU- button(12) five times. “tO” will be displayed.
● Press ▲ to enable (ON) or ▼ disable the Key Tones (OF).
● Press the PTT - button(14) to confirm your selection and return to
the standby mode.
12. Roger Beep On/Off
Roger Beep function is that when you finish talking and release
PTT-button, the device will send out a roger beep to confirm that
you have stopped talking.
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