Retevis RT75 Bedienungsanleitung

User’s manual

0.5Watts Handheld walkie-talkie

Model US:RT75

EU:RT675

EN- Instruction for use

This set includes 2 walkie-talkie units, these are communication devices which operate on

mobile radio frequencies, They come with 16/22 (option) channels as well as a back-lit LCD

screen, enabling you to communicate over several kilometers free-of-charge( up to 2 km in

open areas)

Note: Please read these user instructions carefully before using the equipment and retain

for future consultation.

Specific Recommendations:

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 aerial is damaged in any way.

Don’t use the device in a potentially explosive setting (e.g. Around petrol pumps, on the

lower deck of a boat or around a fuel-storage installation or chemical products)

If travelling in a car or by bike, stop before using the device,

Switch off the device if on an airplane 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 use for an extended period of time, Never mix

used with new batteries.

Position the transmitter and antenna at least 5cm from your face. Direct the antenna

upwards and speak normally.

Clean the device with a damp cloth. Avoid the use of cleaning agents and solvents.

Don’t modify the device in any way. In the event of damage occurring, ensuring that

the device is checked by a qualified professional.

The device cannot be used to contact the emergency services.

PIC 01

Up Button

Down Button

Before Use the device

Remove the belt clip

Before insert batteries into the device, first pull the belt clip latch away from the

device(See PIC02)

Installing the batteries

1.Slid down the battery compartment cover( See pic03).

2.Insert 3*AAA batteries(Not included)

3.Position the batteries according to polarity making on the battery compartment.

4.After placing batteries into correct positions, replace the battery cover( See PIC04)

PIC 04

PIC 03PIC 02

Using the device

1.Turning the device on/off:

Switch on the device: press and hold on the on/off button for 3 seconds, then you will

hear a beep sound.

Switch of the device: press and hold on the on/off button for 3 seconds, then you will

hear a beep sound.

2. Adjusting the volume:

To increase the volume, press the Up button and press the Down button to decrease

volume.

Note: The volume level is displayed on the screen.

3. Low Battery Indication.

The battery voltage level is indicated by the numbers 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 voltage is low, the battery icon will flash and a beep will be heard to

indicate that the batteries need to be replaced or recharged.

4. Receiving / transmitting communications:

The devices are in ‘Reception’ mode when it is turned ON and no transmitting, when a

signal is received on the current channel, the LCD will display in reception.

When you press the PTT(push to talk) button, the devices switches to“Transmission”mode.

Hold the device in a vertical position with the Mic(microphone) 5-10cm away from your

mouth. While holding the PTT button, speak into the microphone in a normal tone of voice.

Release the PTT button when you have finished transmitting.

For others to receive your transmission, they must be on the same channel with you.

Note:

1.The maximum talking range is 2km, it will depended on your surroundings and

environment. It will be affected by obstructions such as hills or buildings.

2.Don

’

t try to use two devices which are less than 1.5mm(5 feets) apart, otherwise, you

may experience interference.

5. Changing Channels:

Press the MENU button one time, The channel number will flash on the display.

Press the up / down button to change the channel,

Press the PTT button to confirm and return to stand-by mode.

Note: If no button is pressed within 15 seconds during setting, the device will return to

stand-by mode.

6. CTCSS( Continues Tone Coded Squelch System)

Press the MENU button twice, the current CTCSS code will flash on the display,

Press the up / down button to change the 61 available codes.

Press the PTT button to confirm and return to stand-by mode.

License free radio

’

s operating on the FRS/PMR446 frequency band , the device has

16/22 available radio channels, If there are many device users near you, there is a

chance that some of the users are operating on the same radio channel.

To prevent that you receive signals from other users, sub-channels have been integrated.

When using CTCSS, a low frequency tone (between 67-250 HZ) will be transmitted along

with the voice signal, There are 99 available tones to choose from,

You are free to choose one of the 99 available sub-channels, Due to filtering, these sub-

channels will generally not be audible so they will not disturb the communication.

7. VOX (Hands free function)

Press the MENU button three times, the current VOX setting will flash on the display and

the VOX icon will display.

Press up button to set the VOX sensitivity level between 1 and 3 level( level 3 is the

high sensitive level).

Press down button until “OF” appears on the display to turn VOX OFF.

Press the PTT button to confirm and return to stand-by mode.

In VOX mode, the radio will transmit a signal when it is activated by your voice or other

sound around you.

VOX operation is not recommended if you plan to use your device in a noisy or windy

environment.

Note: VOX mode will be over ride when you press the PTT button

8. Scanning for an active radio channel

Press and hold the UP button 2 seconds: the “SCAN” function indicator will appear

on the display and the channel will scan continuously from 1 to 16/22. once an active

channel is found, the scanning will stop and you can listen to the transmission.

When the transmission is on the found channel stop, the scanning will resume automatically.

Note: If you press PTT button while listening to a found channel, the device will go back to

stand-by mode on the found channel.

9. Monitor

Press and hold the DOWN button about 3 seconds to active monitor.

Release the DOWN button return to stand by mode.

10. Setting the call Tone

The device has 10 call tones

Press the MENU-button 4 times, “CA” is displayed and on the current call tone.

Press the UP / Down button to change another Call Tone.

Press the PTT button to confirm and return to stand-by Mode.

11, Sending a call Tone.

Press the CALL button one time quickly, the call tone will be transmitted on the setting

channel.

12. Roger Beep On/Off

After the PTT button is released, the device will send out a roger beep to confirm that have

stopped talking.

Press the MENU button 5 times, “Ro” will be displayed.

Press the UP /Down button disable the roger beep ON/OFF.

Press the PTT button to confirm your selection and return to the stand-by mode.

13. Backlit Display.

Press any button except for the MENU button to activate the back light of the LCD display,

The back light will light on about 5 seconds.

14. Headset connection,

The device can be used with headset (If there is headset packed together with the device)

The connector is located on the top of the device.

Insert the earpiece plug into the connector (2.5mm jack)

There is a small “PTT” button on the earpiece has the same function as the PTT button on

the device.

When you use the PTT button from the earpiece, you must also use the microphone from t

he earpiece to talk.

Note: Don’t connect other headset, it may damage your device.

15. Battery saving function:

When the device has not been used for 6 seconds, the economy mode is automatically

activated, This does not affect the reception of transmission and the stand by mode is

automatically re-activated as soon as signal is detected.

16. Buit-in Flash light

Your device has a built-in flash light that can be used in sending light signals or for our

lighting needs.

17. Lock & Unlock the device

Press and hold MENU-button for 3 seconds to lock the device. The button lock icon is

displayed on the LCD screen.

Press and hold MENU button for 3 seconds to unlock the device.

18. Technical specifications

Frequency US:FRS，EU:PMR446，CA:FRS&GMRS

Channels EU:16 channels , US(CA):22 channels

Sub-code CTCSS 61

Transmission Power =<500mW ERP

Range Up to 2 Km(Open field)

Battery type 3xAAA Alkaline/rechargeable batteries(Not included)

Modulation Type FM – F3E

Channel spacing 12.5kHz(Narrow band)

Frequency

CH FrequencyCH

1 462.5625

2 462.5875

3 462.6125

4 462.6375

5 462.6625

6 462.6875

7 462.7125

8 467.5625

9 467.5875

10 467.6125

11 467.6375

12 467.6625

13 467.6875

14 467.7125

15 462.5500

16 462.5750

1 446.00625

2 446.01875

3 446.03125

4 446.04375

5 446.05625

6 446.06875

7 446.08125

8 446.09375

9 446.10625

10 446.11875

11 446.13125

12 446.14375

13 446.15625

14 446.16875

15 446.18125

16 446.19375

17 462.6000

18 462.6250

19 462.6500

20 462.6750

21 462.7000

22 462.7250

US（

FrequencyZGHRK

EU（

FrequencyZGHRK

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