1. Introduction
The GOBOOST GB23 Series Cell Phone Signal Booster is designed to enhance mobile phone signals for 2G, 3G, and 4G LTE networks across various frequency bands. This manual provides essential information for the proper installation, operation, and maintenance of your signal booster to ensure optimal performance.
Image: GOBOOST GB23 Series Signal Booster Kit with Omni antenna, panel antenna, and booster unit.
2. Package Contents
Please check the box for the following items:
- GOBOOST Signal Booster Unit (GB23 Series)
- Outdoor Antenna (10dBi Omni antenna)
- Indoor Antenna (2M 9dBi Panel antenna)
- Coaxial Cable (13 meters with F-male connector)
- Power Adapter (AC:100~240V, 50/ 60Hz, DC:5V 1.6A)
Image: Visual representation of the signal booster, outdoor antenna, indoor antenna, and coaxial cable included in the package.
3. Specifications
| Feature | Specification |
|---|---|
| Model Number | GB23 |
| Brand Name | GOBOOST |
| Certification | CE, RoHS |
| Gain | 70dB |
| Output Power | 23dBm |
| CPU | MIE G5 (efficient, not prone to short circuit) |
| Coverage Area | 400-1000 sqm (without barriers) |
| Outdoor Port Connector | F-Female Connector |
| Indoor Port Connector | SMA-Female Connector |
| Dimensions | 185 x 72 x 19 mm |
| Power Supply | AC:100~240V, 50/ 60Hz, DC:5V 1.6A |
| Indoor Antenna | 2M 9dBi Panel Antenna |
| Outdoor Antenna | 10dBi Omni Full Band External Antenna |
| Coaxial Cable Length | 13 meters |
Supported Frequencies
| Band | Frequency (Uplink/Downlink) |
|---|---|
| LTE 4G 700 (Band 28) | UL: 703-748MHz / DL: 758-803MHz |
| LTE 4G 800 (Band 20) | UL: 791-821MHz / DL: 832-862MHz |
| 2G/3G CDMA 850 (Band 5) | UL: 824-849MHz / DL: 869-894MHz |
| 2G/3G GSM 900 (Band 8) | UL: 890-915MHz / DL: 935-960MHz |
| 4G DCS 1800 (Band 3) | UL: 1710-1785MHz / DL: 1805-1880MHz |
| 3G UMTS 2100 (Band 1) | UL: 1920-1980MHz / DL: 2110-2170MHz |
Important: Ensure the booster's frequency matches your operator's frequency for proper functionality.
Image: Table showing common frequency bands (GSM 900MHz, Band 1 2100MHz, Band 2 1900MHz, Band 3 1800MHz, Band 4 1700MHz, Band 5 850MHz, Band 7 2600MHz, Band 8 EGSM 900MHz, Band 20 800MHz, Band 28 700MHz).
4. Installation Guide
Follow these steps for a successful installation:
- Locate Optimal Outdoor Signal: Search for a position where you can receive a strong outdoor signal (stronger than -70dB). Install the outdoor antenna at this location, pointing it towards the nearest base station or cell tower.
- Connect Outdoor Antenna to Booster: Use the provided coaxial cable to connect the outdoor antenna to the 'Outdoor Port' (F-Female Connector) on the signal booster. Ensure all connections are tightened securely.
- Connect Indoor Antenna to Booster: Connect the indoor antenna to the 'Indoor Port' (SMA-Female Connector) on the signal booster.
- Power On and Verify Connections: After all components are connected, double-check all connectors for tightness. Then, connect the power adapter to the booster and plug it into a power outlet.
Image: Four-step visual guide for installing the signal booster, showing placement of outdoor antenna, cable connections, and indoor antenna connection.
Image: Close-up view of the signal booster's connectors, highlighting the F-Female (Outdoor Port) and SMA-Female (Indoor Port).
5. Operating Instructions
Once installed and powered on, the GOBOOST GB23 Series signal booster will automatically begin to amplify the cellular signal. The intelligent LCD display on the unit will show the work status and indicate signal strength in real-time for different frequencies.
- LED Display: The front panel features an LED display that clearly shows the operational status, including gain and output power (70dB Gain, 23dBm Output).
- Automatic Gain Control (AGC): The booster incorporates an AGC function for intelligent control of each band, which helps extend the equipment's lifespan and optimize performance.
- Low Radiation: Designed with low radiation to minimize interference with base stations and ensure user safety.
Image: The signal booster with its LED display showing 'GAIN 70dB' and 'OUTPUT 23dBm', alongside a smartphone indicating improved signal strength.
6. Maintenance
To ensure the longevity and optimal performance of your GOBOOST signal booster, consider the following:
- Cooling System: The unit has a built-in cooling program to prevent overheating. Ensure adequate airflow around the device and avoid blocking ventilation openings.
- Connector Care: Periodically check all cable connections (outdoor antenna, indoor antenna, power) to ensure they remain tight and free from moisture or corrosion.
- Cleaning: Clean the exterior of the booster unit with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Environmental Conditions: Protect the outdoor antenna from extreme weather conditions. Ensure the indoor unit is placed in a dry, stable environment.
Image: Diagram illustrating the internal cooling system of the signal booster, showing airflow paths to prevent overheating.
7. Troubleshooting
If you encounter issues with your signal booster, refer to the following common problems and solutions:
| Problem | Solution |
|---|---|
| Signal bar on screen flashes or shows blank |
|
| Signal bars are full, but cannot make phone calls |
|
| Booster works for a while, then suddenly stops |
|
8. User Tips
- Frequency Matching is Key: Always confirm that the booster's frequency bands are compatible with your local cellular operator's frequencies before installation.
- Antenna Separation: Maintaining sufficient distance (at least 15 meters) between the outdoor and indoor antennas is crucial to prevent oscillation and ensure effective signal amplification.
- Outdoor Signal Strength: The performance of the booster heavily relies on the initial outdoor signal strength. Aim for an outdoor signal of at least 3 bars for best results.
- Secure Connections: Loose connections can lead to signal loss or intermittent operation. Ensure all cables are securely fastened to their respective ports.
9. Warranty and Support
This GOBOOST product comes with a one-year warranty. In case of any issues, please contact customer support with a detailed description of the problem, including videos or pictures if possible, to facilitate troubleshooting and resolution. Our support team will be glad to assist you with installation suggestions and any product-related concerns.
