Product Name:
RF Repeater / Signal Amplifier
Working Frequency:
Customizable
Noise Figure:
≤ 6dB
AGC / ALC:
Supported
Dimensions:
690mm X 420mm X 260mm
Weight:
55kg
37dBm Tri-Band GSM900 / Dcs1800 / WCDMA2100 , RF Repeater / Signal Amplifier
Model: VR-4390-GW
Product Instructions:
The GSM&DCS&WCDMA Tri-Band RF Repeater (RFR) is designed to provide a more cost-effective solution than adding a new Base Transceiver Station (BTS) to improve signal coverage and communication quality in GSM900&DCS1800&WCDMA system. 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.
Product Features:
Band-Selective RF Repeater: To amplify all signals in the whole band (bandwidth is customized)
Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corroding
Highly selective channel selector can process1 2 channels simultaneously
No interference to BTS by adopting linear amplifier with high gain and low noise
Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink
RS-232 port provides a link to a notebook for local supervision or to the built-in wireless modem to communicate with the NMS (Network Management System) that can remotely supervise repeater's working status and download operational parameters to the repeater
Applications:
To expand signal coverage or fill signal blind area where GSM and WCDMA signal is weak or unavailable.
Outdoor: Airports, tourism regions, golf courses, tunnels, factories, mining districts, villages,
Indoor: Hotels, exhibition centers, basements, shopping malls, offices, parking lots, etc.
Technical Specifications:
Items
GSM 900&DCS1800
WCDMA2100
Working Frequency
(customized)
Uplink
890~915&1710~1785 MHz (Customized)
1920~1980 MHz(Customized)
Downlink
935~960&1805~1880MHz (Customized)
2110~2170 MHz (Customized)
Gain
≥ 90dB
Gain Adjustment Range
1~31 dB @ step of 1 dB
Output Power
37dBm
Adjacent Channel Power Ratio (ACPR)
-
P ≥ 31 dBm: (Offset 5MHz) ≤ 49dBc
P ≥ 31 dBm: (Offset 10MHz) ≤ 54dBc
P
P
Voltage Standing Wave Ratio
Error Vector Magnitude (EVM)
-
≤ 12.5%
Out-of-Band Gain
-
2.7 ≤ f_offset
3.5 ≤ f_offset
7.5 ≤ f_offset
12.5 ≤ f_offset: ≤ 30dB
Peak Code Domain Error (PCDE)
-
≤ -35dB
Noise Figure
≤ 6dB
In-band Ripple
≤ 3dB(GSM)/ ≤ 5dB(DCS) /≤ 3dB(WCDMA@3.84MHz)
System Delay
≤ 5.0μSec
Spurious Emission
Within working band: ≤ -15dBm/30kHz
9kHz~1GHz: ≤ -36dBm/30kHz
1GHz~12.75GHz: ≤ -30dBm/30kHz
Comply with 3GPP TS 25.106 V6.0.0
In-band Intermodulation Attenuation
≤ -40dBc / 30kHz (measured under rated output power)
Comply with 3GPP TS 25.106 V6.0.0
I/O Impedance
50Ω
RF Connector
N-Type (Female)(one BTS Port and one MS port)
AGC / ALC
Supported
Temperature Range
Operation: -25°C ~ + 55°C / Storage: -30°C ~ +60°C
Relative Humidity Range
≤ 95% (non condensing)
Power Supply (customized)
DC +24V / AC 220V±15%, 50Hz
Backup Power Supply (optional)
4 hours
Dimensions
690mm X 420mm X 260mm
Weight
55kg
NMS Monitoring Function
TTL Signal (dry connection) generated forreal-time alarm for door status, temperature, power supply, LNA, VSWR, etc;
Remote control such as turn on/off, increasing/decreasing output power, etc;
Real-time status for output/input power, UL/DL gain, all status of repeater etc.
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