Nikrans NS-1000GDW Installation Manual

Contents

3MyAmplifiers.com - +44 977215553 (UK) , +33 977215553 (France),E-mail: contact@myamplifiers.com - Skype: gsm_amplifierwww.myamplifiers.com3. Technical specificationsGSM/DCS/3G Signal Booster SpecificationSpecificationFrequencyrange(MHz)Up link 890-915/1710-1785/1920-1980Downlink 935-960/1805-1880/2110-2170Gain(dB)Up link 65Downlink 70Output power (dBm) 15Pass bandrippleGSM ≤5dB3GDCS≤4dB≤13 dBGuard bandrejectionGSM (BW-60dB)≤42 MHz(BW-70dB)≤45 MHzDCS3G(BW-60dB)≤104MHz(BW-70dB)≤107 MHz(BW-60dB)≤124MHz(BW-70dB)≤127 MHzI/O impedance 50/N ConnectorI/O return loss ≤-10dBNoise figure ≤8dBIntermodulation attenuation(Po=5dBm)≥38dBcTransmission Delay ≤0.5usAmbient temperature -10℃～50℃Power supply AC110～220V±10% 45～55HzSize 158mm*136mm*37mmReliability To the GB6993-86 standardElectromagneticcompatibilityTo the ETS300 694-4 standardFunction a) Power supply LED denote4. System structureA simple signal amplifier system is composed of a hostsignal amplifier, reverse antenna and in-door coveringsystem. Reverse antenna aims at the reverse base stationthat requires for expanding the coverage, the BTS Port ofthe host signal amplifier is connected with reverse antennaand User’s Port is connected with in-door covering system.As shown in the following diagram, firstly, the indoor signalsintroduced by the signal amplifier are divided into two-waysignals by splitters, then each signal is distributed twoantennas through a coupler with the power distribution ratioequal to circuit exhaust ratio so as to ensure both of theantennas to obtain equal power (splitter and coupler maycan be configured flexibility). It shall be attached importancethat at least 15dB of the isolation shall be bigger than theplus between reverse antenna and covering system formeeting the requirements of C/I≥15dB of theGSM/CDMA/DCS/PCS system.220VSystem structure diagramBTSSignal amplifiersplitter CouplerCoupler