ATNJ Dual-Band Band20 Band8 800/900MHz LTE GSM Mobile Signal Booster
Product Overview
This professional-grade signal booster enhances 2G/4G cellular connectivity by amplifying weak signals. When connected to the external antenna, your device will operate as if near a cell tower, improving data rates, preventing dropped calls, and extending battery life by reducing power consumption.
Key Features
- Dual-band operation (LTE 800 / GSM 900)
- 82dB gain with 27dBm output power
- LCD display with sleeping mode
- Automatic Gain Control (AGC) function
- Compact design (165*130*40mm)
- Comprehensive alarm monitoring system
Technical Specifications
| Parameter | Specification |
| Frequency Range | Uplink: 832-862MHz, 890-915MHz Downlink: 791-821MHz, 935-960MHz |
| Gain | 80dB |
| Output Power | 27dBm |
| Noise Figure | ≤5dB |
| Operating Temperature | -10°C to +55°C (Operation) -20°C to +60°C (Storage) |
| Power Supply | AC 110-220V±20%, 50/60Hz |
Download Complete Technical Specifications (PDF) Package Contents
- Tri Band Booster Base Unit
- AC Power Cord
- Outdoor Panel Antenna
- Indoor Panel Antenna
- 35 Meters White Coaxial Cable
Product Images
Installation & Troubleshooting
- Ensure outdoor antenna points toward signal tower (minimum -70dBm strength)
- Verify all power connections are secure
- Maintain minimum 10m separation between indoor/outdoor antennas
- Apply waterproofing to outdoor connectors
Frequently Asked Questions
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Q1:I am in United Kingdom and which band/frequency should i choose?

Usually the typicial frequencies work in United Kingdom mobile operators should be 900/1800MHz---2G,900/2100MHz---3G and 700/800/1800/2100/2600MHz work for 4G and part of 5G. Feel free to contact us for confirming a suitable model at your local pls.
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Q2:Do you have CE or any other certification?
A:Yes,we CE, , ROHS and FCC certification,etc.
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Q3:Can you give me a discount?
A:Please discuss with our sales.
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Q4:How about gain and output power of your device?
A:Different models, gain and output power are different,for more details, please contact us.
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Q5:How long is warranty period?
A:The warranty is 12 months. And we offer 7*24 technical support .
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Q6:how many square meters can be covered?
A:For different models, the covered square meters are different.
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Q7:Can I use your device in suburbs or remote areas?
Yes, as long as you can find a good signal source, our signal booster can help you solve signal problems in remote areas.
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Q8:How about gain and output power of your device?
Different models, gain and output power are different,for more details, please contact us.
Benefits of Signal Boosting
- Eliminates dropped calls and missed texts
- Improves voice call quality
- Enhances data speeds for streaming/downloads
- Extends mobile device battery life
- Expands coverage area in buildings/vehicles