20dBm GSM900 1800MHz Smart Mobile Signal Booster 2G 4G Repeater with 70dB Gain and LCD Display
This 20dBm GSM900/1800MHz Smart Mobile Signal Booster enhances cellular connectivity for 2G, 3G, and 4G networks. Featuring an intelligent LCD display and automatic gain control, it provides reliable signal amplification for homes and businesses in areas with poor coverage.
- LCD screen displays outdoor signal strength and output values with installation guidance
- Automatic gain control with 31dB step attenuation and 20dB minimum adjustment
- Energy-saving sleep mode activates during inactive periods
- Compact design measuring 165×130×40mm with professional appearance
- Automatic shutdown protection prevents system self-oscillation
| Parameter | Specification |
|---|---|
| Frequency Range | Uplink: 890-915MHz, 1710-1785MHz Downlink: 935-960MHz, 1805-1880MHz |
| Gain | 70dB |
| Output Power | 20±3dBm |
| Noise Figure | ≤ 5dB |
| Power Supply | AC 110-220V±20%, 50/60Hz |
| Operating Temperature | -10°C to +55°C |
| Dimensions | 165×130×40mm |
| Weight | ≤0.8kg |
The signal booster system operates through a five-step process: outdoor antenna captures weak signals, transmits via coaxial cable to repeater, amplifier enhances signal strength, improved signal distributes through indoor antenna, and mobile devices receive boosted connectivity.
- Dual Band Booster Unit
- Power Adapter
- Outdoor Log-periodic Antenna
- 2× Indoor Ceiling Antennas
- 2× 5-meter Cables + 1× 20-meter Cable
Ideal for locations with poor cellular reception including basements, parking garages, tunnels, offices with concrete/metal shielding, supermarkets, hotels, and rural residential properties.
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