70dB Dual Band Signal Booster 2G 3G 4G 1800/2100MHz Mobile Repeater with 20dBm Output Power
Price:
USD+100---120+kit
MOQ:
5Pcs
Delivery Time:
3-5 work days
Brand:
ATNJ
Product Description
Product Overview
This 70dB dual band signal booster provides reliable 2G, 3G, and 4G mobile signal amplification for areas with weak cellular coverage. Operating on 1800/2100MHz frequencies, it enhances indoor communication quality while reducing phone radiation and extending battery life.
Technical Specifications
| Specification | Parameters |
|---|---|
| Frequency Range (Uplink) | 1710-1785MHz, 1920-1980MHz |
| Frequency Range (Downlink) | 1805-1880MHz, 2110-2170MHz |
| Frequency Bandwidth (3dB Bandwidth) | 75MHz & 60MHz |
| Gain | 70dB |
| Output Power | 20dBm |
| Operating Temperature | -10°C to +55°C |
| Power Supply | AC 110-220V±20%, 50/60Hz |
| Dimensions | 165×130×40mm |
| Weight | ≤0.8kg (Net) |
Key Features
- Intelligent installation guidance with LCD display
- Real-time signal strength monitoring
- Automatic dormancy when no calls are active
- Self-oscillation alarm and solution guidance
- Automatic gain adjustment to prevent self-excitation
- Device damage detection and proactive alerts
Installation Guidance
Troubleshooting Support
- If no signal after activation, ensure outdoor antenna points toward signal tower with strength ≥ -70dBm
- For outgoing call issues, adjust outdoor antenna direction
- For unstable signals, maintain minimum 20m distance between antennas with wall separation
Package Contents
- Dual band signal booster unit
- Indoor antenna
- Outdoor antenna
- 20 meter and 5 meter cables
- User manual
- Power adapter (AC 220V/DC 5V/2A)
Technical Documentation
For detailed product specifications, download the complete technical document:
Product Gallery
Frequently Asked Questions
Does the signal booster have radiation?
Yes, but minimal. The booster actually reduces phone radiation during calls by improving signal strength, making it safer than using phones in weak signal areas.
Can I install the signal repeater myself?
Absolutely. No technical expertise required. Each kit includes everything needed with simple step-by-step instructions.
Can this repeater create a signal where there is no cell signal?
No, the mobile signal repeater cannot produce a signal, only amplify a weak existing one.
Can longer cables be used without affecting performance?
We can supply custom cable lengths, but longer cables do affect performance due to signal transmission loss.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Atnj Communication Technology Co., Ltd.
Location
Floor 12, Building A, Rd Jiangshi, Quanju High-Tech Industry Park, Guangming District, Shenzhen, Guangdong Province, China
Contact Person
Wave Luo