Retevis RT37, RT637 - Walkie Talkie Manual

Safety

Product safety and RF Exposure for two way radio:

Before using this two way radio, please read the manual which contains important operating instructions for safe usage, RF Energy Awareness, control information and operational instructions for compliance with RF Energy Exposure limits in applicable national and international standards, and also read the operational instructions for safe use.

Product

Start Guide

Installation the battery

1. Make sure your radio is turned OFF.
2. Remove the battery compartment door.
3. Install the 4 NiMH rechargeable battery or 4 AAA Alkaline batteries into the battery compartment.
4. Replace the battery compartment door.

Basic radio operations

1. Press to turn on.
2. Press MENU to enter the channel settings, the channel display pattern starts flashing, with to select. Press PTT to confirm and exit.
3. Press twice to enter the setting. OFF for no code, 01~38 for CTCSS code, 39-99 for DCS code.
4. Press MENU for 3 times to enter the Vox function selection. there are OFF,1,2.3 these 3 gear sensitivity optional.
5. Press MENU for 4 times to enter the CALL tone selection function. They are 01 to 10 sounds available.
6. Press MENU for 5 times to enter the key tone selection function, select the button when the ON button will beep a tone, select the OFF button when there is no tone.
7. Press MENU for 6 times to enter the launch end of the tone selection function, with to select. select ON to release the PTT will have a tone, the opposite choice of OFF there is no tone.
8. Press MENU for 7 times and exit can also press PTT to confirm the exit menu.

Note:
It doesn't has charging function, it can't be charged directly through charger base and so on, it only can be charged by a NiMH vrechargeable battery.
When installing the battery, please pay attention to the corresponding positive and negative placement!

Battery METER

	indicates that battery is fully
	indicates that battery is LOW
	The LCD appearsicon please replace batteries immediately.

Tunning your Radio ON/OFF

1. To turn your radio ON,press and hold button 3 seconds.
2. To turn your radio OFF,press and hold button 3 second again.

Adjusting the Volume

1. press the button to increase the speaker volume.
2. press the button to decrease the speaker volume.
3. The speaker volume level is indicated on the LCD displayed(1~8 Level).

Setting a Channel

1. Witt the radio on, press MENU the current channel flashes.
2. press to set the channel.
3. press PTT to save the channel setting.

Talking and Listening

To communicate, all radio in your group must be set to the channel and interference Eliminator code.

To talk, press and hold PTT hold the radio 2-3 inches away from your mouth and speak directly into the microphone. Do not cover the microphone while talking.

when you finish speaking, release PTT (press to talk, release to listen).

Special Features

Interference Eliminator Code

Interference Eliminator Codes help minimize interference by providing you with a choice of code combinations. To set the code for a channel:

1. Press MENU until the code starts to flash.
2. Press to select the code 0-99 0R 99-0.
3. Press PTT to save the code setting.

You can set a different code for each channel using this procedure.

Note: You must set the Interference Eliminator Codes to 0 on an FRS radio that uses Interference Eliminator Codes to communicate with other FRS radios that do not have Interference Eliminator Codes.

TOT (TIME OUT Timer )

In order to prevent the use of the channel and save power, walkie-talkie has emission limit function, then the launch time is less than 180 seconds.

When reached the default time, the radio stops launching with "beep" tone.

Locking the Keypad

To avoid accidentally changing your radio settings, press for 3 seconds or until displays and there is a "beep" tone. You can turn the radio on and off, you can't adjust the volume, menu, and monitor channels. All other functions are locked.

To unlock the radio, press for 3 seconds or until is no longer displayed. And there is a "beep" tone.

Note: When locking, only the PTT and are valid.

Setting and Transmitting Call Tones

Your radio can transmit different call tones to other radios in your group so you can alert them that you want to talk.

To set a call tone

Your radio can transmit different call tones to other radios in your group so you can alert them that you want to talk. Your radio has 10 call tones from which choose.

1. Press MENU button until icon appears. The current call tone setting will flash.
2. Press to change and hear the call tone.
3. Press PTT to save.

Voice Operated Transmission (Vox)

Transmisson is initiated by speaking into the microphone of the radio instead of the pushing the PTT button.

Note: Note Level "N"(OFF)disables VOX Levels 1-3 set thesensitivity of the VOX circuit Use level 1 in quiet environments, and use level 3 in very noisy environments. You can find the appropriate sensitivity level by speaking into the microphone.

Scanning Channels

Eatures your radio to scan for active channels.when activity is detected, your radio lands (stays) on that channel for 5 seconds. To transmit on that channel ends, your radio continues scannig to other channels.

To turn the channel scan ON:

1. Press and hold to enter Scan mode.
2. press or PTT to turn off Scan mode.

Note:
During scanning, press the key to change the direction of the scan. Safety and General Information

1. If you carry any kind of personal medical device, consult a doctor before use.
2. To avoid the risk of burns, do not use the device if the aerial is damaged in any way.
3. Never use the device in close proximity to a radio to avoid interference.
4. Position the transmitter and antenna at least 5 cm from your mouth.
5. The device cannot be used to contact the emergency services.

Techincal specifications