ATNJ JS-DB900/1800/2100/CAR Tri-Band 4G Signal Booster with 50-55dB Gain for Vehicles
The ATNJ JS-DB900/1800/2100/CAR is a professional tri-band mobile signal booster specifically designed for camper vans and vehicles. This 4G/LTE, GSM, and 3G signal amplifier features a powerful Yagi antenna system that provides reliable connectivity for camping and mobile applications.
| Specification | Value |
|---|---|
| Model Number | JS-DB900/1800/2100/CAR |
| Type | 4G Signal Booster |
| Frequency Bands | 880-915MHz/925-960MHz, 1710-1785MHz/1805-1880MHz, 1920-1980MHz/2110-2170MHz |
| Gain | 50-55dB |
| Output Power | Uplink: 17dBm, Downlink: 2dBm |
| Coverage Area | 10 square meters |
| Dimensions | 225 x 140 x 35mm |
| Weight | 1.2kg |
| Warranty | 3 Years |
| Material | Aluminum |
- Intelligent LCD display for guided installation
- Real-time signal strength monitoring
- Automatic dormancy when no calls are active
- Self-diagnostic system with error alerts and solutions
- Automatic gain adjustment to prevent system oscillation
- Device status monitoring with proactive maintenance alerts
- Powerful Yagi antenna for enhanced signal reception
- Supports multiple simultaneous connections
- Easy installation via cigar lighter power source
This tri-band signal booster provides extended coverage up to 10 square meters, making it ideal for camper vans and mobile applications. The system enhances GSM, 3G, and 4G/LTE signals across 900MHz, 1800MHz, and 2100MHz frequency bands, ensuring stable mobile internet and high-quality voice services even in remote locations.
The complete installation kit includes: booster unit, in-car antenna, powerful outdoor Yagi antenna, all necessary cables and mountings, and comprehensive user manual with step-by-step installation guide.
All ATNJ signal boosters are certified 100% safe for users, mobile devices, and the environment. This model carries CE and RoHS international safety certifications, ensuring compliance with global standards.
This product includes a 3-year warranty with 24/7 technical support. The device is backed by comprehensive customer service and installation assistance.
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