Nikrans NS-1000GDW Installation Manual

Contents

2MyAmplifiers.com - +44 977215553 (UK) , +33 977215553 (France),E-mail: contact@myamplifiers.com - Skype: gsm_amplifierwww.myamplifiers.comNikrans NS-1000GDW Signal Booster1. PurposeAs the domestic mobile communication industrydevelops rapidly, the amount of mobile communicationsusers increases so steadily that the cell planning getssmaller and smaller while the base station positions getlower and lower. On the other hand, as city constructiondevelops, more and more high-rise buildings are set upconstantly, based on the shadow effect of the radiopropagation, the mobile communications may get a signalblind spot behind or between the buildings. Moreover, inorder to avoid interference from adjacent districts, the mainlobe of the antenna radiation orientation of the cell mobilecommunication base station in construction has a biggerdown-tilt obliquity, thus the signals usually can not bereceived effectively in the high and medium parts of thehigh rise buildings. Furthermore, due to the shield effect toelectro-magnetic waves caused by buildings, the mobilecommunication signals cannot be received in tunnels,subways, underground stores, entertainment complex,parking fields, hotels, office buildings and other large-sizeand closed buildings.Signal amplifier is an effective device that makes upthe insufficient base station coverage in the mobile network,enlarges the coverage area of the base station and fills inthe blind spots, which adopts double-ended duplex designand external power supply with advantages of convenientmounting and high reliability. The bandwidth of the signalamplifier may cover GSM 25MHz/19 MHz/ 6MHz,CDMA10MHz/DCS75 MHz with compatibility betweendigital system and analogue system.2. Technical features High system gains Full duplex and double-end design, external powersupply, and convenient installation ALC technology with auto-steady function adopted. Provide power indication and uplink and downlinkindications. With the amplified linear power, the intermodulation andspuriousness are suppressed effectively. The reliability conforms to GB6993-86 standards. The electromagnetic compatibility conforms to ETS300609-4 standards.