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Fiber Optic Repeater For Is Designed To Solve Problems Of Weak Mobile Signal.

Posted at: Offers to Sell and Export | Posted on: Thu 14 Aug, 2008 9:42 am |
fiber optic repeater solve problems weak mobile signal
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The GSM/CDMA Fiber Optic Repeater (FOR) is designed to solve problems of weak mobile signal in the place

that is far away from the Base Transceiver Station (BTS) and has fiber optic cable network underground.

The system consists of two parts: Donor Unit and Remote Unit. The Donor unit captures the BTS signal via direct coupler closed to BTS, then converts it into optic signal and transmits the amplified signal to the Remote Unit via fiber optic cable. The Remote unit will reconvert the optic signal into RF signal and provide the signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.


 Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corroding

 Omni-directional antenna can be adopted to expand more coverage

 Tx/Rx control and alarm messages can be transmitted via one fiber optic cable

 Adopting WDM module to realize long-distance transmission

 Stable and improved signal transmission quality

 One Donor Unit can support up to 8 Remote Units to maximize utilization of fiber optic cable

 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


To expand signal coverage or fill signal blind area where 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, …

Technical Specification:


Working Frequency

(customized) Uplink 890~915MHz / 1710~1725MHz / 1850~1910MHz 450~457.5 MHz / 824~849 MHz / 1880~1890MHz

Downlink 935~960MHz / 1805~1820MHz / 1930~1990MHz 460~467.5 MHz / 869~894 MHz / 1960~1970MHz

Transmission Distance ≤ 20km

Max. Input Level +10dBm

Output Power 10W / 15W / 20W

Gain ≥ 65dB

Gain Adjustment Range 1~31 dB

Voltage Standing Wave Ratio < 1.5

Noise Figure < 5dB (only for uplink)

In-Band Ripple ≤ 3dB

Spurious Emission ≤ -36dBm

In-Band Inter-Modulation Attenuation ≤ -40dBc / 30kHz ≤ -15dBm / 30kHz

System Delay ≤ 5μSec

I/O Impedance 50Ω

Fiber Optic Light Source Laser unit (wavelength: 1310nm / 1550nm)

Optical Output Power ≥ 0dBm (1310nm) / ≥ 3dBm (1550nm)

Optical Receiver Sensitivity ≤ -25dBm

Temperature Range Operation: -25°C ~ + 55°C / Storage: -30°C ~ +60°C

Relative Humidity Range ≤ 95% (non condensing)

Power Supply (customized) DC +24V/ DC –48V / AC 220V±15%, 50Hz / AC 110V

Backup Power Supply (Optional) 4 hours

Dimensions Donor Unit : 418mm X 90mm X 290mm

Remote Unit: 630mm X 400mm X 230mm

Weight Donor Unit: 6kg / Remote Unit: 35kg

NMS Monitoring Function Real-time alarm for door status, temperature, power supply, etc.

Company Contact:

Guanritechnology photo
Contact Name: Ankeer
Company Name: Shenzhen Guanri Technology Co., Ltd
Email: Email
Tel: 86-755-26711296
Fax: 86-755-26723967
Street Address: 5/F Building M-8,
High Technology Industrial Park,
Shenzhen, China
Website: http://www.guanri.com.cn
Member name: Guanritechnology
Country: China-CN China
Member Since: 12 August 2008
Total Leads: 11 Guanritechnology Import Export Business Leads
Business focus: Repeaters, Fiber Optic Repeater, Pass Band Rf Repeater, Band-selective Rf Repeater, Frequency Shift Repeater, Providing Solutions Of Coverage
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