Cdma In-band Frequency Shift Repeater Fsr Is Designed To Solve Problems Of Weak Mobile Signal

The CDMA In-Band Frequency Shift Repeater (FSR) is designed to solve problems of weak mobile signal, which can expand more coverage than RF repeater and reduce investment for the areas where fiber optic or dedicated cable is not allowed.
The system consists of two parts: Donor Unit and Remote Unit. The Donor Unit receives the BTS (Base Transceiver Station) signal via open air RF transmission or direct coupler closed to BTS, then converts it from the working frequency to the link frequency that is inside the working band, and transmits the amplified signal to the Remote Unit that will reconvert the signal to the working frequency and provide 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.

Features:
 Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corroding
 Best solution to eliminate mutual interference due to sharing the same frequency
 No stringent isolation requirement for antenna installation
 Easy to choose installation site
 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

Application:

To expand signal coverage or fill signal blind area where CDMA 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:



Items Donor Unit Remote Unit
Working Frequency
(customized) Uplink 450~457.5 MHz / 824~849 MHz / 1880~1890 MHz
Downlink 460~467.5 MHz / 869~894 MHz / 1960~1970 MHz
Link Frequency (customized) Customized
Transmission Distance ≤ 20km
No. of Channels (for channel shift) 1 / 2
Frequency Error ≤ 0.05ppm
Downlink Input Level Wireless access: ≥ -70dBm Cable access: ≥ -10dBm
Output Power Uplink Wireless access ≥ 30dBm ≥ 33dBm
Cable access ≥ 0dBm
Downlink 30~40dBm (1W~10W) 37~43dBm (5W~20W)
Voltage Standing Wave Ratio < 1.3
Gain Wireless access ≥ 85dB ≥ 90dB
Cable access ≥ 45dB
Gain Adjustment Range 31 dB @ step of 1 dB
Noise Figure < 5dB (only for uplink)
In-band Ripple ≤ 3dB
Spurious Emission Out of band per channel ∆f ≥750kHz: ≤ -45dBc/30kHz ∆f ≥ 900kHz: ≤ -42dBc/30kHz
∆f ≥1.98MHz: ≤ -65dBc/30kHz ∆f ≥ 1.98MHz: ≤ -59dBc/30kHz
Within working band ≤ -15dBm/30KHz
Out of working band
(∆f > 2.5MHz) 30MHz~1GHz: ≤ -36dBm/100kHz
In-Band Inter-Modulation Attenuation ≤ -15dBm/30kHz
Out-of-Band Suppression Per band ∆f > 2.5MHz: < -40dBc (downlink); ∆f >10MHz: < -60dBc (uplink)
Per channel ∆f > 1.98MHz: < -44dBc (downlink); ∆f >1.98MHz: < -38dBc (uplink)
System Delay ≤ 10μSec
I/O Impedance 50Ω
RF Connector N-Type (Female)
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 630mm X 400mm X 230mm
Weight 33kg 35kg
NMS Monitoring Function Real-time alarm for door status, temperature, power supply, etc.

_________________
Contact Name: Ankeer
Company Name: Shenzhen Guanri Technology Co., Ltd
Email: Repeater@guanri.com.cn
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