Shenzhen Atnj Communication Technology Co., Ltd.
Better signal,better life. We extend your 2G,3G,4G and 5G,to touch the untouching. Shenzhen ATNJ Communication Technology Co.,LTD--Lead the future, connecting the infinite.
Add to Cart
2G 3G 4G Dual Band Repeater 850MHz 1800MHz Internet Signal Booster
Dual Band Repeater Signal Booster Internet 2G 3G 4G 850 / 1800MHz Cellular Amplifier
Selling Point
1. Intelligent to guide the installation with LCD
2. Real time display the signal strength.
3. Automatic dormancy when no user make the calling
4. Automatic alarm when installation mistake and provide the according solution
5. Automatic adjust the system gain to avoid the repeater self-excitation
6. Initiative reminding when the device was damaged.
Technical Specifications
| Specifications | Parameters | |
| Frequency Range (Customers to Choose) | Uplink | 824-849MHz, 1710-1785MHz |
| Downlink | 869-894MHz, 1805-1880MHz | |
| Frequency Bandwidth (3dB Bandwidth) | 25MHz&75MHz | |
| Gain | 70dB | |
| Automatic gain control (Step Attenuation) | 31dB @ 1dB/ Step | |
| Auto Gain Control | 20dB Min. | |
| Output Power(Customers to Choose) | 17±3dBm | |
| Spurious Emission | ≤ -15dBm/30kHz | |
| 9kHz~1GHz: ≤ -36dBm/30kHz | ||
| 1GHz~12.75GHz: ≤ -30dBm/30kHz | ||
| Inter-Modulation Attenuation ACPR | ≤ -40dBc / 30kHz (measured under rated output power) | |
| In-band Ripple | ≤ 3dB | |
| VSWR | <=2 | |
| I/O Impedance | 50 Ω | |
| Noise Figure | ≤ 5dB | |
| System Delay | ≤ 5μs | |
| RF Connector(Customers to Choose) | SMA(Female) | |
| Operating Temperature | Operation: - 10°C ~ + 55°C / Storage: -20°C ~ +60°C | |
| Power Supply | AC 110~220V±20%, 50/60Hz(AC 220V/ DC5V/2A power adapter) | |
| Dimensions | 165*130*40 (mm) | |
| Weight | ≤0.8 kg(Net) | |
| Alarm Monitoring System | Alarm for uplink self-oscillation | |
| Indication LED | Power supply | |
Further detail pls click here for downloading the products specification:
850+1800MHz C03 Mobile Signal Repeater.pdf
Product Description
Model No : JS-DB850/1800/P
With ALC AGC Function
Can control gain automatically. Avoid base station interference
Network support : CDMA 2/3G + DCS 2/4G
Gain : 70dB
Power Supply : AC110V～220V; DC+5V/2A
Connector Type : SMA - female connector
The repeater makes the signal stronger in places with poor signal coverage such as:
1) Underground areas: basements, parking lots, tunnels;
2) Other places where cellular signal is shielded by metal or concrete walls: offices, supermarkets, cinemas, hotels;
3) Places distant from the BTS like private houses.
Customer Notification
Shipping
● We will send your parcel as soon as possible after payment confirmed, Within 48 hours for normal,Except weekend and Chinese holidays.
● Import Tax is not including in the price.
● If you find the package is beyond promised delivered time, please contact us, we will contact with the carriers and find out the reason.
Warranty
● Please note that we always check and test the product twice before shipping and pack them well as far as possible.If the product is broken at receiving,please contact us,we would resend you a new one.
● Three years warranty period for our booster.Man-made sabotage and natural factors are not within the scope of warranty.If the booster have any problems, please show us an video or some photos of your complete installation, we will help you. Please do not open dispute or leave negative feedback before contact us.we will reply you within 24 hours,except holiday.