WCDMA Trunk Amplifier 1) Low ripple level, less system delay and low noise figure 2) Support local & remote supervision

The Trunk Amplifier is designed to compensate the power attenuation caused by signal transmission and distribution among the passive indoor signal distribution system in high buildings. With lower gain and uplink output power than repeaters, a Trunk Amplifier is usually working as a relay for the repeater or micro-cell to amplify the donor signal where the signal level is not high enough for further distribution.

Due to its low ripple level, less system delay and low noise figure, it can effectively avoid the bad call quality caused by multiple level of amplification and accumulated noise level among the indoor signal distribution system.

High-Power Trunk Amplifier	Low-Power Trunk Amplifier

  

  

  

Application Diagram of Trunk Amplifier

FeaturesAluminum-alloy casing has high resistance to dust, water and corroding; Low noise figure, spurious emission and in-band ripple; Adopting filter with highly selectivity and high out-of-band suppression; RS-232 ports provide links to a notebook for local supervision and to the built-in wireless modem to communicate with the NMS (Network Management System) that can remotely supervise working status of trunk amplifiers and download operational parameters to trunk amplifiers. Application

To extend the signal coverage of repeaters or micro-cells among the indoor signal distribution system.

Indoor: Inside high buildings, subways, tunnels, underground markets, underground parking lots, hotels, offices, … Specifications

UplinkDownlink

Working Frequency (customizable)		2110~2170MHz	1920~1980MHz
Nominal Gain		40±3 dB
ALC (automatic level control)		@ maximum output power: input signal level increases by 10dB, increase of output level will be < 2dB or closed
Frequency Error		≤ ±0.01ppm
Gain Adjustment Range		1~31dB @ step of 1dB
Waveform Quality Factor		> 0.95
Output Power		0 dBm	27~37 dBm (0.5~5 W)
Adjacent Channel Power Ratio (ACPR)	P ≥ 31 dBm	(Offset 5MHz) ≤ 49dBc(Offset 10MHz) ≤ 54dBc
	P < 31 dBm	(Offset 5MHz) ≤ 50dBc(Offset 10MHz) ≤ 55dBc
Noise Figure		≤ 4dB	--
System Delay		≤ 5.0μSec
Voltage Standing Wave Ratio (VSWR)		≤ 1.4
In-Band Ripple		≤ 3dB p-p
Spurious Emission and IMD3		Comply with 3GPP TS 25.106 V6.0.0
Peak Code Domain Error (PCDE)		≥ -35dB
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 (customizable)		DC +24V / AC 220V±15%, 50Hz / AC 110V±15%, 50Hz
Casing Level		Output power @27~30dBm: IP31Output power @33~37dBm: IP65
Dimensions		Output power @27~30dBm: 385mm X 300mm X 130mmOutput power @33~37dBm: 570mm X 325mm X 215mm
Weight		Output power @27~30dBm: 8kgOutput power @33~37dBm: 27kg
Remote Monitoring/Control via NMS		Supported

 

WCDMA Trunk Amplifier