70dB Gain Dual Band Cell Phone Signal Amplifier 850MHz 1900MHz for 2G 3G 4G Networks with 20dBm Output Power
This 70dB gain dual-band cell phone signal amplifier enhances 2G, 3G, and 4G network coverage for improved call quality and mobile internet performance. Operating on 850MHz and 1900MHz frequency bands, it's ideal for areas with weak cellular reception.
- LCD screen displays outdoor signal strength and output values
- Automatic gain control with 31dB step attenuation
- Sleep mode for energy efficiency during inactive periods
- ALC function prevents excessive signal output and interference
- Compatible with multiple network generations (2G/3G/4G)
- Comprehensive installation guidance with error troubleshooting
| Parameter | Specification |
|---|---|
| Frequency Range | 824-849MHz (Uplink), 869-894MHz (Downlink) 1850-1910MHz (Uplink), 1930-1990MHz (Downlink) |
| Gain | 70dB |
| Output Power | 20±3dBm |
| Automatic Gain Control | 31dB @ 1dB/Step, 20dB Min. |
| Noise Figure | ≤ 5dB |
| Operating Temperature | -10°C to +55°C |
| Power Supply | AC 110-220V±20%, 50/60Hz |
| Dimensions | 165×130×40 mm |
| Weight | ≤0.8 kg |
Download detailed specifications:
Download "Network Cell Info Lite" app to identify LTE band numbers.
Dial *3001#12345#*, click "Cell Serving Info," and check "Freq Band Indicator."
- Underground spaces: basements, parking garages, tunnels
- Signal-shielded locations: offices, supermarkets, cinemas, hotels
- Remote areas distant from cellular towers: private residences
- Dual Band Signal Booster Unit
- Power adapter
- Outdoor log-periodic antenna
- Indoor omni antenna
- Indoor ceiling antenna
- 5 meters coaxial cable
- 20 meters coaxial cable
- Mount outdoor antenna on rooftop directed toward signal tower
- Connect outdoor antenna to "outdoor" port using provided cable
- Connect indoor antenna(s) to "indoor" port
- Plug power adapter into AC outlet to complete setup
We are a factory with trading services, offering OEM/ODM customization including private labeling.
Yes, we welcome sample orders for quality testing. Minimum order quantity is 1 unit for standard products.
No, we provide comprehensive user manuals and 24/7 technical support.
We offer a 3-year warranty for all products, excluding damage from improper use or natural disasters.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.