Sell Cdma Channel Selective Repeater

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Post Date: Apr 8, 2008
Validity Date: Feb 15, 2018
Category: Telecommunications » Telecommunication Equipment

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Description

Main applications:
●Low traffic density from suburb, such as highway and village
●Shadow areas
●Expanding service range and eliminating coverage blind areas, such as signal blind areas due to high mountains, building and hurst, etc
●Located along with highway to enhance the coverage efficiency
●Confined areas such as basement, subway, tunnel, and so on

Main features
●All parameters can be setted or monitored by software locally or remotely
●Monitor software can be upgraded locally or remotely
●Gain,ALC level,Channel number,RF power and HPA switch can be setted by software
●Protection from over voltage, over current, over temperature,over output power and backup batteries
●Large-scale dynamic range, low power consumption and low system noise figure
●ALC (auto level control)、Main modules self-test and alarm;
●Alarms on over power、 over temperature、 stationary wave、threshold and Open-door alarm
●With a RS232 interface to NMS(network manegement system)
●Broad adjustable range for power and gain,high precision of step-gain,and convenient debugging;
Technical index
Specification		Downlink	Downlink
Frequency range		870~880MHz	825~835 MHz
		460-465MHz	450-455MHz
RF power output		33/37/40/43dBm	30/33dBm
ALC		At max power, when input is added 10dB again, output power should keep within the range of 2 dB or be closed.
Frequency error		≤±5×10^-8
RF Gain		95±3dB	90±3dB
Gain adjustment range		≥30 dB
Gain adjustable linearity	-10dB	±1.0dB
	-20dB	±1.0dB
	-30dB	±1.5dB
In-band ripple		≤3dB
Noise figure		≤5dB
VSWR		≤1.4
propagation delay		≤5.0us
Waveform quality		≥0.950	≥0.960
Working temperature		—30 ~ +55 °C
Working humidity		< 95%