1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your GOBOOST Cellular Booster (Model: GB23-LTE-B28). This device is designed to amplify 3G and 4G LTE Band 28 signals, improving cellular reception in areas with weak indoor signal strength.
Important Considerations Before Installation
Before proceeding with the installation, it is crucial to verify your current SIM card's signal frequency and ensure that the outdoor installation location has a sufficiently strong signal. The booster will only amplify signals on its supported frequency band, and a weak outdoor signal source may prevent the device from functioning effectively. We recommend an outdoor mobile phone signal of at least 3 bars or stronger than -80dB.
How to Check Your Signal Frequency and Strength
To ensure compatibility and optimal performance, please check your mobile phone's signal frequency and strength:
- iPhone users: Dial
*3001#12345#*and click "Serving Cell Info". - Android users: Install the app "Cell Mapper" or "Network Cell Info Lite".
- Samsung users: Dial
*#0011#and navigate to "ServiceMode".
2. Package Contents
The GOBOOST Cellular Booster kit includes the following components:
- GOBOOST Signal Booster Unit
- Yagi Outdoor Antenna
- Whip Indoor Antenna
- 13m Coaxial Cable (with F-male connector)
- Power Plug (EU/US/AU/UK variant depending on selection)
3. Product Overview and Features
The GOBOOST Cellular Booster is a single-band repeater designed for Band 28 (700 MHz) 4G LTE signals, offering significant improvements in cellular coverage for homes and offices. Its compact and efficient design ensures reliable performance.
Key Features:
- High Gain & Output Power: Features 70dB high gain and 23dBm high output power, allowing connection of 1-3 indoor antennas for steady signal.
- Wide Coverage: Provides high-intensity coverage, capable of covering 400-1000 square meters without barriers.
- Advanced Chipset: Equipped with an MIE G5 chip for efficient operation, preventing short circuits and ensuring faster signal processing.
- Modern Design: Sleek and compact design that integrates well into any home or office environment.
- Multi-User Support: Supports multiple phone users and is suitable for various countries and operators (e.g., Chile, Brazil, Mexico, Colombia).
- Intelligent LCD Display: Clearly shows real-time signal strength and operating status for different frequencies.
- AGC Function: Automatic Gain Control intelligently manages each band to extend equipment lifespan.
- Low Radiation: Designed to reduce interference with base stations and protect user health.
- Efficient Cooling System: Built-in cooling program prevents overheating, ensuring stable performance and greatly improving product longevity.
Video 1: Product overview and installation demonstration.
4. Specifications
| Attribute | Value |
|---|---|
| Brand Name | GOBOOST |
| Model Number | GB23-LTE-B28 |
| Frequency Band | Band28 700mhz |
| Frequency Range (UL) | 746-756mhz |
| Frequency Range (DL) | 777-787mhz |
| Gain | 70dB |
| Output Power | 23dBm |
| Function | Mobile Signal Booster Repeater, 4G Signal Amplifier |
| Coverage | Can cover about 250-800 sqm without barrier |
| Cellular Network | 3G/4G Signal |
| Power Supply | AC:100-240V |
| Accessories | Antenna, Cable, Signal Booster |
| RF Connector - Outdoor Port | F-Female Connector |
| RF Connector - Indoor Port | SMA-Female Connector |
| Outdoor Antenna | gsm 2g 3g 4g antenna yagi 13dbi full band antenna |
| Indoor Antenna | Whip antenna gsm signal 2g 3g 4g |
| Coaxial Cable | 13m with F-male connector |
| Feature | LCD display; Heat dissipation, NEW design in repeater |
| Cooling system | Improve using life |
| Connectors design | Reduce loss of signal |
| Origin | Mainland China |
| Certification | CE, pse |
5. Setup and Installation
Follow these steps to properly install your GOBOOST Cellular Booster:
- Step 1: Locate a Strong Outdoor Signal. Search for a position outdoors where you can receive a good signal (stronger than -80dB or at least 3 bars). This location should ideally be without blocking and oriented towards the base station or cell tower.
- Step 2: Install the Outdoor Antenna. Securely install the Yagi outdoor antenna at the chosen location. Connect the coaxial cable to the outdoor antenna. Ensure all connections are tightened well.
- Step 3: Connect the Indoor Antenna and Signal Booster. Connect the other end of the coaxial cable from the outdoor antenna to the "Outdoor Port" (F-female connector) on the signal booster. Then, connect the whip indoor antenna to the "Indoor Port" (SMA-Female Connector) on the signal booster.
- Step 4: Power On. After all connections are securely made, connect the power adapter to the signal booster and plug it into a power outlet. The LCD display should light up, indicating the booster is operational.
6. Operating Instructions
Once powered on, the GOBOOST Cellular Booster will automatically begin to amplify the cellular signal. The LCD display provides real-time feedback on its operational status and signal strength.
Understanding the LCD Display:
The LCD display shows the current gain and output power, along with a visual representation of the signal strength. Observe the bars on the display to confirm signal reception and amplification.
Signal Improvement:
After successful installation, you should notice a significant improvement in your mobile phone's signal strength, leading to better call quality and faster data speeds.
7. Maintenance
The GOBOOST Cellular Booster is designed for low maintenance. To ensure its longevity and optimal performance:
- Keep the unit clean and free from dust. Use a soft, dry cloth for cleaning.
- Ensure proper ventilation around the booster to allow its built-in cooling system to function effectively.
- Avoid exposing the unit to extreme temperatures or moisture.
- Regularly check all cable connections to ensure they remain secure.
8. Troubleshooting
If you encounter issues with your cellular booster, please refer to the following troubleshooting tips:
- No Signal Receipt After Activation:
- Verify that your signal frequency matches the booster's supported band (Band 28, 700 MHz). The device will only amplify the corresponding signal frequency.
- Check if the outdoor antenna is correctly pointed towards the nearest cell tower.
- Ensure the outdoor antenna is installed in a location with a strong signal (at least 3 signal levels or stronger than -80dB).
- Unstable Signal Strength:
- Ensure there is maximum distance between the outdoor and indoor antennas.
- There should be a physical barrier (like a wall) between the outdoor and indoor antennas.
- The outdoor and indoor antennas should not be in the same horizontal line to prevent signal oscillation.
9. User Tips
No specific user tips from reviews or Q&A were provided for this product. However, general best practices for cellular boosters include:
- Always ensure the outdoor antenna has a clear line of sight to the cell tower for best performance.
- Avoid placing the indoor antenna too close to the booster unit itself, as this can cause feedback.
- If possible, use a signal meter to precisely aim the outdoor antenna for maximum signal strength.
10. Warranty and Support
For any product-related inquiries, technical support, or warranty information, please contact the seller directly through the platform where the purchase was made. Keep your purchase records for reference.
The product is certified with CE and PSE, ensuring compliance with relevant safety and quality standards.
