Retevis RB21 4G LTE Network Radio User Manual

1. Úvod

1.1 Konec produktuview

The Retevis RB21 is a versatile 4G LTE network radio designed for extensive communication. It combines the functionality of a walkie-talkie with essential smartphone features, offering unlimited communication range across 2G/3G/4G networks. This device is suitable for various professional and outdoor activities, ensuring reliable connectivity.

1.2 Klíčové vlastnosti

• Unlimited Range Communication: Utilizes 2G/3G/4G networks for nationwide coverage.
• Podpora SIM karet: Compatible with major network operators (Vodafone, T-Mobile, Telefonica, O2, e-Plus).
• Připojení přes Wi-Fi a Bluetooth: Allows communication via Wi-Fi without a SIM card, and supports Bluetooth accessories.
• Pozice GPS: Integrated GPS function for location tracking and navigation.
• Zello Application Support: Facilitates communication with companions using Zello and similar PTT applications.
• Paměť a úložiště: Equipped with 1GB RAM and 8GB internal storage.
• Zobrazit: Features a 2.4-inch touchscreen for easy navigation.
• Trvanlivost: IP54 water and dust resistance for robust performance in various environments.
• Baterie s dlouhou výdrží: Powered by a 2800mAh rechargeable Li-ion battery with USB charging.

This image highlights the comprehensive features of the Retevis RB21, such as its ability for nationwide calls, GPS tracking, multi-network support (2G/3G/4G), wireless connectivity (Bluetooth, Wi-Fi), ample memory (1GB RAM + 8GB storage), Zello application compatibility, a powerful 2800mAh battery, a clear 2.4-inch screen, and IP54 water resistance.

2. Obsah balení

Zaškrtněte prosím políčko u následujících položek:

• Retevis RB21 Network Radio Unit
• Dobíjecí lithium-iontová baterie (2800 mAh)
• USB nabíjecí kabel
• Napájecí adaptér (pokud je součástí dodávky)
• Spona na opasek
• Uživatelská příručka

This image provides a detailed look at the Retevis RB21 device from various angles, illustrating its physical components including the screen, keypad, side buttons, charging port, and the detachable belt clip, which are typically included in the package.

3. Průvodce nastavením

3.1 Instalace SIM karty a baterie

1. Sejměte zadní kryt: Gently pry open the back cover of the device.
2. Vložte SIM kartu: Locate the SIM card slot. Insert your single SIM card into the designated slot with the gold contacts facing down, ensuring it is properly seated.
3. Vložte baterii: Place the 2800mAh Li-ion battery into the battery compartment, aligning the contacts.
4. Vyměňte zadní kryt: Bezpečně nasaďte zadní kryt, dokud nezacvakne na místo.

3.2 Nabíjení zařízení

1. Připojte nabíjecí kabel USB k nabíjecímu portu zařízení.
2. Druhý konec kabelu USB připojte k napájecímu adaptéru nebo k portu USB počítače.
3. The charging indicator will illuminate. Allow the device to charge fully before first use.

This image shows the Retevis RB21 powered on, displaying its user interface. This is relevant for the setup section as it indicates the device is ready for initial configuration after battery and SIM installation.

4. Návod k obsluze

4.1 Zapnutí/vypnutí

To power on the device, press and hold the Power button until the screen illuminates. To power off, press and hold the Power button, then select 'Power Off' from the options.

4.2 Základní komunikace (PTT)

The Retevis RB21 functions as a Push-To-Talk (PTT) device. Once configured with a network or Wi-Fi connection and a compatible application like Zello:

1. Select your desired contact or group from the main menu.
2. Press and hold the dedicated PTT button on the side of the device to transmit your voice.
3. Release the PTT button to listen for incoming messages.

4.3 Using Zello and GPS Features

The device supports the Zello application for instant communication. The integrated GPS function allows for location tracking and sharing, which can be utilized within compatible applications for enhanced coordination.

This image demonstrates the Retevis RB21's utility for communication in mobile environments, such as logistics or transportation, highlighting its GPS and 4G capabilities for maintaining contact with teams anytime, anywhere.

5. Údržba

5.1 Čištění

Regularly clean the device with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners. For stubborn dirt, a slightly damp cloth can be used, ensuring no moisture enters ports or openings.

5.2 Odolnost proti vodě a prachu

The Retevis RB21 has an IP54 rating, meaning it is protected against dust ingress and splashing water from any direction. While it offers good protection, it is not fully waterproof. Avoid submerging the device in water or exposing it to heavy rain.

This image visually represents the IP54 rating of the Retevis RB21, showing its resilience against dust and water splashes, which is important for understanding its maintenance and usage in challenging environments.

6. Řešení problémů

6.1 Běžné problémy a řešení

Zařízení se nezapíná:

Ensure the battery is correctly installed and fully charged. Connect the device to a charger to confirm if it's a battery issue.

Žádný síťový signál:

Check if the SIM card is properly inserted and activated. Verify that you are within a 2G/3G/4G network coverage area. If using Wi-Fi, ensure the Wi-Fi network is active and you have the correct password.

Cannot transmit or receive messages:

Confirm that your device is connected to the internet (via SIM data or Wi-Fi). Ensure the Zello or other PTT application is running and you are logged in. Check your selected contact or group for communication.

GPS nefunguje:

Ensure GPS is enabled in the device settings. Move to an open area with a clear view oblohy pro lepší satelitní příjem.

7. Technické specifikace

8. Záruka a podpora

8.1 Informace o záruce

Retevis offers a 2-year warranty for the radio body and a 1-year warranty for accessories. Additionally, a 30-day no-reason return policy is provided. Beyond the warranty period, maintenance services are available, with buyers responsible for associated costs.

8.2 Zákaznická podpora

V případě jakýchkoli dotazů nebo potřeby podpory se prosím obraťte na zákaznický servis Retevis prostřednictvím Amazonu. Odpovědi jsou obvykle poskytnuty do 12 hodin.