Shenzhen Greetwin Technology Co.,Limited
| Payment Terms | T/T, L/C |
| Supply Ability | 5000pcs per Month |
| Delivery Time | 3 Working Days After Received Payment |
| Packaging Details | Carton with PE Foam |
| Product Name | 20dBm Pre Amplifier |
| Application | Improve Uplink Power |
| Working frequency | DCS1800MHz |
| Operating Temp | -20℃ to +55℃ |
| Operating Humidity | 5% - 95% |
| HS CODE | 8543709200 |
| Other Name | Good Helper of Repeater |
| Output Power | 20dBm |
| Brand Name | GREETWIN |
| Model Number | GW-20PAD |
| Certification | SGS, ISO9001,CE,FCC,ROHS |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 5000pcs per Month |
| Delivery Time | 3 Working Days After Received Payment | Packaging Details | Carton with PE Foam |
| Product Name | 20dBm Pre Amplifier | Application | Improve Uplink Power |
| Working frequency | DCS1800MHz | Operating Temp | -20℃ to +55℃ |
| Operating Humidity | 5% - 95% | HS CODE | 8543709200 |
| Other Name | Good Helper of Repeater | Output Power | 20dBm |
| Brand Name | GREETWIN | Model Number | GW-20PAD |
| Certification | SGS, ISO9001,CE,FCC,ROHS | Place of Origin | China |
| High Light | phone signal repeater ，cell signal amplifier | ||
PreAmplifier Cell Phone Range Extender Improve Uplink Power 20dBm
The GREETWIN cell phone booster has been designed to prevent overloading or interfering with existing networks. Operators have approved the device to access their networks. It is important to buy a signal booster that does not interfere with other networks. If not purchasing from us, please make sure that the signal booster you are going to buy has been approved by your carrier and have been proven not to cause network interference.
Pre-amplifier is utilized when the input power of the repeater is weaker than the suitable power level, pre-amplifier will boost the input signals to a certain reasonable level, so that the repeater can reach its full output power for a much larger coverage size.
Pre-amplifier has also been largely deployed to assist the Pico repeater operation in rural areas. As it is known, the Pico repeater only gets 5~15dBm output power in UL, so when the repeater site is too far away from the BTS tower, the mobile phone signals would not be strong enough to go back. Typical phenomena is that people can see full bar signals on the mobile phone, but the phone calls can't be initiated. So a pre-amplifier with 20dBm output power in UL would increase the UL power level of the repeater so that the signals can reach BTS tower.
pre-amplifiers are available in single, dual and triple mobile band , i.e., not only we have pre-amplifier able to amplify one GSM900 band , but also a triple band one to support GSM900, DCS and WCDMA at the same time.
It supports all current technologies of GSM850, GSM900, DCS, PCS; CDMA450, CDMA800, CDMA1900, CDMA2000, WCDMA2100 and AWS.
Though it supports up to triple band , the pre-amplifiers are still compact size, elegantly looking with low power consumption.
PreAmplifier Specification:
| Frequency Range | Uplink | Downlink | |||
| GSM1800 | 1710-1785MHz | 1805-1880MHz | |||
| Max. Gain | 20dB | 20dB | |||
| Max. Output Power | 20dBm | 0dBm | |||
| Band width | Wide Band | ||||
| Manual Gain Control | 31dB / 1dB Step | ||||
| Automatic Gain Control | >30dB | ||||
| Ripple in Band | CDMA,GSM≤6dB; DCS,PCS≤8dB； | ||||
| Noise Figure | ≤ 6dB | ||||
| VSWR | ≤ 2.0 | ||||
| Intermodulation Products | 9KHz~1GHz | ≤ -36dBm | |||
| 1~12.75GHz | ≤ -30dBm | ||||
| Spurious Emission | 9KHz~1GHz | ≤ -36dBm | |||
| 1~12.75GHz | ≤ -30dBm | ||||
| Time Delay | ≤ 1.5 μs | ||||
| Frequency stability | ≤ 0.01ppm | ||||
| MTBF | > 50000 hours | ||||
| Impedance | 50 ohm | ||||
| Power Supply | AC 90-264V,DC 9V/3A | ||||
| Power LED | Power indicator | ||||
| ISO(Alarm LED) | Red | Self oscillation or Strong input signal | |||
| Green | Normal | ||||
| Mechanical Specification | |||||
| RF Connector | N-Female | ||||
| Switch | Power Switch | ||||
| Cooling | Heatsink Convection cooling | ||||
| Humidity | < 90% | ||||
| Operating Temperature | -20°C ~ +55°C | ||||
| Environment Conditions | IP40 | ||||
| Installation Type | Wall Installation | ||||
| Size | 204mm×128mm×27mm | ||||
| Weight | < 1.5Kg | ||||
PreAmplifier Features:
1. Wide band pre-amplifier to support all signals
2. ETSI & 3GPP 3GPP2 standards
3. Enough UPLINK power level of 20dBm to reach BTS
4. UL AGC 10dB range to ensure high linearity
5. UL IM3 meets with ETSI 3GPP 3GPP2 standards
6. Alarm LED's for error detection
7. Universal power range of 90V~265V
8. Elegant designlight weight low power consumption
PreAmplifier Support these systems:
| Frequency Range | Uplink | Downlink |
| CDMA 450 | 452.5 - 457.5MHz | 462.5 - 467.5MHz |
| LTE700 A/B | 699- 716MHz | 729- 746MHz |
| LTE700 C | 777- 787MHz | 746- 756MHz |
| LTE700 D | 788- 798MHz | 758- 768MHz |
| LTE 800 | 832- 862MHz | 791- 821MHz |
| iDEN | 806- 824MHz | 851- 869MHz |
| CDMA 800/GSM 850 | 824- 849MHz | 869- 894MHz |
| GSM 900 | 890- 915MHz | 935- 960MHz |
| EGSM | 880 - 915MHz | 925 - 960MHz |
| AWS1700 | 1710- 1755MHz | 2110- 2155MHz |
| DCS 1800 | 1710- 1785MHz | 1805- 1880MHz |
| PCS 1900 | 1850- 1910MHz | 1930- 1990MHz |
| WCDMA/3G 2100 | 1920- 1980MHz | 2110- 2170MHz |
| LTE 2600 | 2500- 2570MHz | 2620- 2690MHz |
PreAmplifier Advantages:
1. can customize the Cover Image on the Cell Phone Signal Booster, design private styles
2. If there are strong input signal or severe self oscillation, ISO LED is red.
3. If there are good input signal, AGC LED is green.
PreAmplifier Standard Package:
1) AC90-264V, DC9V/3A power supply adapter 1PCS
2) AC power cord (EU/US/UK/SA/China standard, etc) 1PCS
3) Installation kit 1PCS
4) User manual 1PCS
Application Diagram:
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller,Other
Year Established:
2005
Total Annual:
5million-10million
Employee Number:
100~200
Ecer Certification：
Active Member
Shenzhen Greetwin Technology Co., Limited is one of the leading suppliers which specializes in designing and manufacturing RF Jamming Equipment and Wireless Coverage Products. Wireless Coverage Products include 2G 3G 4G LTE 5G RF Repeater. The RF Repeater... Shenzhen Greetwin Technology Co., Limited is one of the leading suppliers which specializes in designing and manufacturing RF Jamming Equipment and Wireless Coverage Products. Wireless Coverage Products include 2G 3G 4G LTE 5G RF Repeater. The RF Repeater...
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