Greetwin 27dBm Quad-Bands B1 B3 B8 B20 Bandwidth Adjustable Digital Repeater
Model:
GW-
GW-27DRLGDW
The Digital Repeater is designed to provide a more cost-effective solution than adding a new Base Transceiver Station (BTS) to improve signal coverage and communication quality. And its easy installation and maintenance can help carrier get fast return.
The repeater is working as a relay between the BTS and mobiles. It receives the low-power signal from BTS via the Donor Antenna, linearly amplifies the signal and then retransmits it via the Coverage Antenna to the weak/blind coverage area. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.
Features:
- Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corrosion
- Low interference to BTS by adopting linear amplifier with high gain and low noise
- DSP Module supporting up to 3 sub-bands adjustable in each frequency band
- Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink
- USB port provides a link to a notebook for local supervision or IP Based NMS(Network Management System) that can remotely supervise repeater's working status and download operational parameters to the repeater Via Ethernet.
Application:
| Outdoor: |
Airports, tourism regions, golf courses, tunnels, factories, mining districts, villages, … |
| Indoor: |
Hotels, exhibition centers, basements, shopping malls, offices, parking lots, … |
Technical Specifications
| Items |
Specifications |
| System |
LTE800 |
GSM900 |
DCS1800 |
UMTS2100 |
| Frequency Range |
Uplink |
832~862MHz |
880~915MHz |
1710~1785MHz |
1920~1980MHz |
| Downlink |
791~821MHz |
925~960MHz |
1805~1880MHz |
2110~2170MHz |
| Bandwidth(Digital Filter) |
3 Sub-bands, 0.2-30MHz Variable per sub-band |
3 Sub-bands, 0.2-30MHz Variable per sub-band |
3 Sub-bands, 0.2-30MHz Variable per sub-band |
3 Sub-bands, 0.2-30MHz Variable per sub-band |
| Output Power |
Uplink |
20±2dBm |
20±2dBm |
20±2dBm |
20±2dBm |
| Downlink |
27±2dBm |
27±2dBm |
27±2dBm |
27±2dBm |
| Maximum Gain |
75±3dB |
| Manual Gain Adjustment Range |
≥30dB/1dB(The Gain of Each Sub-band can be Adjusted Separately) |
| AGC Range |
≥ 20dB |
| Gain Flatness(Typical) |
≤ ±3dB |
| VSWR |
≤ 2.4 |
| Maximum Input Power(Non-Destructive) |
-10dBm |
| Noise Figure |
≤ 8dB |
| System Delay |
≤ 8μs |
| Spurious Emission |
9KHz~1GHz: ≤ -36dBm |
| 1GHz~12.75GHz: ≤ -30dBm |
| I/O Impedance |
50Ω |
| RF Connector |
2xN-Female |
| Power Supply |
Input: 220V, 50/60Hz |
| Dimensions |
315*223*133 mm |
| Weight |
≤12kg |
| Operating Temperature |
-25 ~ +55 °C |
| Application |
Indoor or Outdoor(IP65) |
| Relative Humidity Range |
≤ 95%(Non Condensing) |
| Mounting |
Wall Mounting |
| Local Control |
Via USB Interface and WiFi Hotspot |
| Remote Mode(Optional) |
SMS and Could NMS via 4G Wireless Modem |
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