Shenzhen Sunjet Electronic T388 Walkie Talkie Instructions

June 6, 2024
Shenzhen Sunjet Electronic

Walkie Talkie

USER INSTRUCTIONS

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Instructions for use

This set includes 2 walkie‐talkie units: these are communication devices which operate on mobile radio frequencies. They ome with 8/20/22(option) channels as well as a back‐lit LCD screen, enabling you to communicate over several kilometres free‐of‐charge (up to 3 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.
Do not 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 traveling in a car or by bike, stop before using the device  Switch off the device if on an aeroplane 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.
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.
Do not modify the device in any way.  In the event of damage occurring, ensure that the device is checked by a qualified professional.
The device cannot be used to contact the emergency services

ITEM DESCRIPTION(Pic 01,02)

  1. Antenna

  2. RX icon  ‐displayed when receiving
    TX icon ‐displayed when transmitting

  3. Volume level indicator

  4.  Adjustor button Up(  )

  5.  Continued reception (MON)

  6. On /off button(  )

  7. Adjustor button Down(  )

  8. Earphone socket

  9. Loud speaker

  10. Microphone

  11.  Menu: Enter the menu settings

  12.  Call button(CALL)

  13. Keypad lock indicator

  14. Battery level indicator

  15. Push to talk(TALK)button

  16. VOX indication

  17. Scanning indication: Displayed during scan mode

  18. Channel menu item indication

  19. CTCSS/Menu option‐value

  20. Lamp Button

  21. Scan Button

  22. Lamp

  23. Belt attachment clip

  24. Belt attachment

  25.  Batteries (not supplied)

  26. Battery compartment

BEFORE USE(Pic 02)
To  insert batteries into the devices, first remove the belt attachment,lift the attachment clip(23)and press the belt attachment upwards(24).

Open the battery compartment (26)and insert AAA batteries (25) (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, hold down the on/off button (6)for 3 seconds a BEEP sound will be played to confirm.

  2. Adiusting the volume: To increase the volume, press the Up adjustor button (4)and press the Down   (7)button to decrease volume.
    Note:  The volume level (3)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 charge level is low, the battery icon will flash and a beep will be heard to indicate
    that the batteries need to be replaced or When the recharged

  4. Receiving/transmitting communications:
    The devices are in “Reception” mode when lit up, ie. they are ready to receive a call or sound transmitted on the activated frequency. .When you press the Call tone button(I2).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 microphone a minimum of 5cm 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 the TALK  button(15) is no longer held down, the other device will emit a sound (BEEP) to Indicate that this device is ready to transmit.

  5. ChangingChannels
    .Press the  MENU button(11) once,the current channel number  flashes on the display
    .Press the  ▲ button(4) or the button(7)to change the channel.Press the TALK ‐button (15) to 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. CTCSS (Continious Tone  Coded Squelch System)
    License-free radio’s operating on the 400~470MHz frequency band。 Like the Twintalker,have 8/2 0 /2 2  available radio channels.If there re many radio users in your neighborhood, there is a chance that Some of these users are operating on the same radio channel.
    To prevent you receive signals from other users, sub‐channels Have been integrated.
    Two radios will only be able to communicate with each other when They are operating on the same radio channel and when they have Selected exactly 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 250Hz)
    Will be transmitted along with the voice signal. There are 99 available Tones to choose from. You are free to choose one of these 99 available tones. Due to filtering, these tones will generally not be audible so they will not disturb the communication.

  7. CTCSS
    ∙Press the MENU‐button(11) twice: The current CTCSS code flashes On the display.
    ∙Press the  ▲button (4) or the button (7) to change to another code
    ∙Press the TALK ‐button(15) to confirm and return to stand‐by mode.
    Note: To disable CTCSS,select code "OF” for CTCSS in the menu. When the entry is confirmed, “OF” will be displayed.

  8. Monitor
    You can use the monitor feature to check for weaker signals in the Current channel.
    .Press the  MoN‐button  to activate channel monitoring
    .Press the  MoN‐button  to stop channel monitoring.
    Note: During channel monitoring the receiver circuit in the Radios Will not listen to CTCSS codes.

  9. VOX Selection
    The radio is capable of voice-activated (VOX) transmission. In  VOX mode, the radio will transmit a singal when it is activated by  Your voice or another sound around you.VOX  operation is not recommended if you plan to use your radio in a noisy or windy environment.
    Note: VOX mode will be overridden when you press the TALKE ‐button   “15”
    .Press the MENU button  (11) three times, the current VOX setting Flashes on the display and the VOX icon is displayed.
    .Press ‐button (4) to set the VOX sensitivity level between 1 and 3
    (level 3 is the most sensitive level).
    .Press ‐button (7) until  “OF "appears on the display, to turn VOX OFF.
    .Press the  TALK ‐button (15) to confirm and return to standby mode.

  10. Scanning for an active radio channel
    .Press the SCAN‐button(21):The “Scan” function indicator (17) Will appear on the screen and the channel (18) will scan continuously  From 1 to 8 /2 0 /2 2
    .Press the ‐button(7) to start the channels can from 8/2 0 /2 2  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 TALK  button (15) while listening to a found channel, the Radios will go back in standby mode on the found channel.

  11. CallTones
    A call tone alerts others that you want to start talking.
    11.1 Setting the Call Tone
    The Twintalker has 10 call tones.
    ∙Press the MENU button (11) four times,”CA”is displayed and The current call tone is flashing.
    ∙Press the  ▲‐button (4) or the  ‐button (7) to change to another Call  Tone.
    ∙Press the TALK ‐button (15) to confirm and return to standby Mode.
    11.2 Sending a call Tone
    Press the CALL button (12) briefly. The call tone will be transmitted On the set channel.

  12. Key‐Tone on/Off
    When a button is pressed, the unit will beep briefly.
    To set the key tone.
    ∙Press the MENU button (11) five times.“to "will be displayed.
    ∙Press  ▲ to enable (ON) or disable the Key Tones  (OF)
    ∙Press the TALK ‐button (15) to confirm your selection and return to standby mode.

  13. Roger Beep On/Off
    After the TALK  button is released, the unit will send out a roger beep
    To confirm that you have stopped talking.
    To set the Roger Beep.
    ∙Press the MENU button  (11) six times. “rO” will be displayed.
    ∙Press▲ to enable (ON) or disable the Roger Beep (OF).
    ∙Press the  TALK ‐button (15) to confirm your selection and return to
    The standby mode.

  14. Button Lock
    Press and hold the Menu button (11) for two seconds to activate the Button lock mode. The button lock icon is displayed on the LCD Screen
    Press and hold the Menu button (11) again for two seconds to deactivate button lock
    Note  The PTT button (15), the Call‐button(12). MON‐button(5), Lamp button(20), and the on/off button (6) will still be functional when the Button Lock is activated.

  15.  Display backlight
    To activate the backlight of the LCD display, press any button.
    The LCD backlight will light up for 5 seconds.

  16. Earpiece connection
    The Twintalker can be used with the included earpiece.
    The connector is located on the upper side of the unit(8) Insert the earpiece plug into the connector (2, 5mm jack) The small button on the earpiece has the same function as the TALK  ‐button (15) on the unit
    When you use the Talk ‐button (15) from the Earpiece, you must also use the microphone from the earpiece to talk into
    Note:  Do not connect other earpieces. This may damage your device

  17. Battery saving function:
    When the device has not been used for seconds, the economy mode is automatically activated. This does not affect the reception of transmissions and the standard mode is automatically reactivated  as soon as a signal is detected.

  18. BUILT‐IN FLASH LIGH
    As an added feature, your radio has built‐in flashlight that can  Be used in sending light signals or for your lighting needs

  19.   Technical specifications

Channels  22
Sub‐code  CTCSS 99
Frequency 462.550MHz~462.7250MHz /467.5625MHz~467.7125MHz
Range Up to 3 Km (Open field)
Battery 4XAAA
Transmission Power <= 500mW ERP
Modulation Type  FM‐F3E
Channel spacing  12,5 kHz
Duo Charger adapter  Output: 7, 5 VDC/350MA

The maximum duty cycle does not exceed 50%. The spring antenna gain should not exceed 2.15dBi

Disposal of Old Electrical Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems)This symbol on the product or on its packaging indicates that this product shall not be treated as household waste, Instead it shall Be handed over to the applicable collection point for the recycling of electrical and electronic equipment. By ensuring this product isdisposed of correctly, you will help prevent potential negative consequences for theenvironment and human health, which could otherwise becaused by inappropriate waste handling of this product. The recyeling of materials will help to conserve natural resources. For more detailed information about recycling of this product, Please contact your local city office or your household waste disposal service.

Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

NOTE: 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.

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.

RF exposure compliance statement:
This device has been evaluated to meet the general RF exposure requirement

FCC Radiation Exposure Statement

The device complies with RF specifications when the device used at 25 mm from your front face and 0 mm from your body. Third-party belt-clips, holsters, and similar accessories used by this device should not contain any metallic components. Body-worn accessories that do not meet these requirements may not comply with RF
exposure requirements and should be avoided.

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