Shenzhen Retevis Technology RA35 0.5 Watts Walkie Talkies Radio Owner’s Manual
- June 6, 2024
- Shenzhen Retevis Technology
Table of Contents
Owner’s manual
0.5Watts Walkie Talkies
Model NO.: RA35
This set included 2 walkie-halide units: there are communication devices that operate in mobile radio frequencies. The cane with 8/221 option) channels as well as backlit LCD screed enabling you to communicate over several kilometers free of -charge(up to4yJ.t neonates/.
Note: Plow read this user iretnxtiom carefully before using the equipment and retail err future consultation!
Specific Recommendations
- To avoid the risk of burns. do not use the device if the aerial Is damaged M any
- Don does not use the dol.:eine potentially egoloshesetting(eg. Around pumpsAn the lower deck era boat or rounds fuel-storage installation or chemicalprodvas)
- If traveling in a car or by bike., stop before using the device.
- Switch off the device if on anaerobes. or in a hospital.
- Never use the device in dose proximity to a radio that avoids interference
- Remove the batteries if the device is not used for an extended period Never mix used with new batteries.
- Position the transmitter and antenna at lost km 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
- Do not modify the device In any In event of damage occurring. ensure that the device is checked by a qua Plied professional.
- Medevicecannot is used to contact the emergency services.
Before Use the device
Removing the belt dip
Before Inserting batteries Into the device, first, pull the belt clip latch away from the device.
Installing the Batteries
For use of non-rechargeable batteries:
- 51id down the battery (moment cover.
- 1nsert 3∗AAA Alkake Riot included)
- Position the batteries according to the polarity making on the battery compact • men&
- After placing batteries into correct positions. replace the batteryCOM.
Using the device
-
Turning the device alt/ elf
Switchonthedevice: Press and hold on to the 3 seconds then you will hear a beep sound.
Switch off the device: Press and hold the 3 seconds then you will hear a beep sound. -
Adjusting the volume
To increase the volume. Press the Up button. And press the Down button to decrease the volume -
Low Battery Indication
The device can detect a low battery level when the battery voltage goes low.
When Wily voltage is low, the battery Icon vAll flash and a beep will be heard to indicate that the batteries need to be replaced -
Receiving/ transmitted ccenmunkations:
The devices are In “Receptkm” mode when It Is turned ON and no transmitting When a signal b rec*ed on the current channel, the LCDveil is displayed in reception.
When you press the PT!’ (push to talk) button, the devices switch to “Transmis-sions mode.
Hold the device in a vertical position with the MIc(microphone) 3-5cm away
from your mouth. While holding the PTT button, speak into the microphone in a
normal tone out
Release the PIT button when you have finished transmitting.
For others to receive your transmission, they must be on the same Mengel with
VW’
Note:
- The talking range will depend on your surroundings and environment It will be asked by obstructions such as hills or buildings.
- Don’t try to use two devices that are less than 1.5m (5 feet) 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 PIT button to confirm and return to standby mode.
Note: If no button is pressed within 15 seconds during setting, the device will return to standby 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 38 available codes.
Press the PTT button to confirm and return to standby mode.
License-free radios operating on the 400-470MHZ frequency band, the device has 8/22(option) 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.
When using CTCSS, a low-frequency tone (between 67-250Hz) will be transmitted along with the voice signal. There are 38 available tones to choose from. You are free to choose one of the 38 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 the UP button to set the Vox sensitivity level between 1 and 3 levels (level 3 is the highly sensitive level).
Press the down button until “OF” appears on the display to turn VoX OFF.
Press the PTT button to confirm and return to standby mode. In VOX mode, the radio will transmit a signal when it is activated by your voice or another 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 overridden when you press the T button.
8, Scanning for an active radio channel
Press and hold the UP button for 2 seconds: The “SCAN” function indicator will appear on the display and the channel will scan continuously from to8/1to22. 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 the PTT button while listening to a found channel, the device will go back to standby mode on the found channel.
9, Monitor
Press and hold the DOWN button for about 3 seconds to active monitor.
Release the DOWN button return to stand by mode.
10, Setting the Call tones
The device has 10 call tones.
Press the MENU button 4 times, “CA” is displayed on the current call tone.
Press the Up /Down button to change another call tone.
Press the PTT button to confirm and return to standby mode.
11, Sending a call tone
Press the PTT 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 has stopped talking.
Press the MENU button 5 times,” RO” will be displayed.
Press the Up /Down button to disable the roger beep ON/OFF.
Press The PTT button to confirm your selection and return to standby mode.
13, Backlit display
Press any button except for the MENU button to activate the backlight of the LCD display. The backlight will light on for about 5 seconds.
14, Earpiece connection
The device can be used with an earpiece (If there is an earpiece 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 that 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 the earpiece to talk.
Note: Do not connect other earpieces, 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 a signal is detected.
16, Built-in Flashlight
Your device has a built-in flashlight that can be used in sending light signals or for our lighting needs.
17, Lock & Unlock the device
Press and hold the MENU button for 3 seconds to lock the device.
Press and hold the MENU button for 3 seconds to unlock the device.
18, Technical specifications
Frequency 400-470MHZ
Channel number 8/22 channels
Sub-code CTCSS 38
Transmission Power <0.5W
Range Up to 6 Km in an open field
Battery type 3* AAA Alkaline/rechargeable batteries
Modulation type FM-F3E
Channel spacing 12.5 kHz (Narrowband)
Channel and Frequency (MHz)
Europe(8CH)
| Ch. Frequency | Ch. Frequency | Ch. Frequency |
|---|
1 446.00625
2 446.01875
3 446.03125| 4 446.04375
5 446.05625
6 446.06875| 7 446.08125
8446.09375
USA(22CH)
| Ch. Frequency | Ch. Frequency | Ch. Frequency | Ch. Frequency |
|---|
1 4623625
2 462.5875
3 462.6175
4 4616375
5 462.6625
6 462.6875| 7 462.7125
8 467.5625
9 4673875
10 467.6125
11 467.6375
12 467.6625| 13 467 6875
14 461.7125
I5 462 5500
16 4623750
17 462 6000
18 462.6250| 19 462.6500
20 462.6750
21 461.7000
22 462.7250
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Caution: Any changes or modifications to this device not explicitly approved by the manufacturer could void your authority to operate this equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. Users should avoid the unintended operation of usage when it is collocated with other transmitters or antennas.