Wireless Band Selective amplifier Signal gsm booster rf 900mhz repeater gsm LCD display

   Wireless Band Selective amplifier Signal gsm booster rf 900mhz repeater gsm LCD display    Description Band Selective Repeaters are cost effective and reliable solutions designed to extend and improve the coverage area of the communication systems. Band Selective(Fixed)Repeaters amplifies in both directions, uplink and downlink a continuous bandwidth, factory tuned. The presence of a Repeater provides to the communication system with a high channel occupancy rate, since coverage is extended beyond site coverage. Typical applications of this line of boosters are indoor situations such as tunnels, buildings, subways, and outdoor scenarios such as stadiums, rural areas and dense urban areas.    Features & Benefits Auto diagnostics: Repeaters are equipped with a microprocessor module that controls the unit operational parameters. This self check capability provides an instantaneous alarm output under failure situation, via local LEDs. Microprocessor module verifies amplifies status, PA status, power supply status, intermediate filters status, and battery backup status and temperature levels.   Antenna isolation control: Repeaters are provided with a built in, microprocessor controlled, antenna isolation control. This feature verifies the real antenna to antenna isolation (donor antenna to service antenna/s), and adjust the maximum available Repeater gain to avoid antenna feedback and oscillation, increasing system reliability.   Control: Repeaters can be controlled locally via the control panel or via RS-232, and can be remote controlled using OMS (Operation and Maintenance Software) via wireless connection. In both situations, local and remote, Repeaters parameters can be adjusted (UL gain, DL gain, RF ON/OFF, intermediate filters characteristics) and alarms can be supervised (amplifiers status, PA status, power supply status, battery backup status, temperature).   Manual gain control: Uplink and Downlink gain levels can be adjusted to meet system planning requirements. Both chains (UL and DL) can be adjusted independent, digitally, in 1dB steps. This gain control can be done locally via tac switches, via RS232 (OMS) or can be done remote via wireless connection (OMS). Gain values are shown via built-in digital displays, for an easy and fast reading.   Automatic Gain Control (AGC): Repeaters are equipped with Automatic Gain Control (AGC) that acts in both Uplink and Downlink chains independent. The presence of an AGC allows a maximum power operation with low intermodulation generation, and provides a lineal operation that ensures a high quality signals amplification.   Weatherproof enclosure: Units are equipped with IP65 enclosures, to allow a simple and easy installation procedure since no special weather protection is required. Standard fixing method is wall mounting, Pole mounting brackets are available as optional.   RF Specifications 

Item			Specification		Remark
			Up-Link	Down-Link
Frequency range			880-915 MHz	935-960 MHz	GSM or any other system
Band width (-3dB)			available upon request
Output Power			30-37 dBm(1-5W)	30-43 dBm(1-20W)	(Customized)
Nominal Gain			95±3dB		(Customized)
Gain Flatness			≤ 3dB (p-p)
MGC ( Step Attenuation )			≥ 31dB / 1dB step
Max. ALC level			≥25dB
Intermodulation attenuation			≤-45dBc
Spurious emission	9kHz-1GHz		≤-36dBm
	1GHz-12.75GHz		≤-30dBm
Noise Figure.			≤5dB(at maximum output power)
Group delay			≤5us
VSWR			≤1.5
Frequency stability			≤ 0.01ppm
System		Spurious Emission Mask	Meet 3GPP TS 25.143 ( V 6.2.0 )
		Modulation Accuracy	≤ 12.5%
		Peak Code Domain Error	≤ -35dB@Spreading Factor 256
		Input inter-modulation	Meet 3GPP TS 25.143 ( V 6.2.0 )
		ACRR	≥ 30dBc/30KHz @ ± 5MHz  ≥ 50dBc/30KHz @ ± 10MHz
RF Connectors			N – female
Impedance			50 Ohms

  Supervising Specifications

Self diagnostic platform	Microprocessor based
Alarms	Yes, amplifiers status, power amplifiers status, power supply failure, battery backup failure, temperature, AGC, RF overload, poor antenna isolation.
Local management and supervising	Built-in gain adjustment interface and alarms/status LEDs, PC access via RS-232 (OMS)
Remote management and supervising	Remote access via wireless GSM SMS modem OR GPRS Modem OR Ethernet, option RC (OMS)

    Our present manufacturing service: 1)  GSM/CDMA/WCDMA/IDEN/DCS/PCS/LTE/TETRA and other Repeaters (Dual band/ Fiber Optical / Band or frequency selective /Frequency Shifting) and series Trunk Amplifiers.   2)  Functional Units: Low-noise Power Amplifier Integrative Module, Low-noise Band Selective Power Amplifier Integrative Module, Power Amplifier, Low-noise Amplifier, Channelized Device, Band Selective Device, Band Selective Frequency Shifting Device.   3)   All kinds of Antenna/Splitter/Connector/Cable.   4)  OEM/ ODM   We promise to supply you with high quality Fiber Optical Repeater!We have confidence that you will satisfy with our products and service.We promise you with the finest price,high quality and best service.Above items are just a part, many more products are not listed out, please feel free contact us for more details. Thank you for your attention!