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Distributed Antenna System (DAS)
Time: 2015-08-10 17:16:55     Copyfrom: Manufacturer of Passive Products

Distributed Antenna System (DAS) is a shared-infrastructure or neutral host model enabling a wireless in-building network by adding coverage and capacity in hard to reach areas resulting in increased network quality.designs, develops and operates cost-effective fiber DAS networks to improve signal strength and network capacity and coverage. We specializes in indoor DAS solutions for the private and public sector and leverages on industry leading expertise across a variety of markets including:
1,Metro and Train Tunnels
2,Hotels, resorts, and convention
3,Venues, including stadiums and convention centers
4,Hospitals and medical centers
1)Passive DAS solutions
PassiveDistributed Antenna System  solutions is built with a combination of passive components or RF ancillaries like splitter, coupler, feeder etc. The passive solution is cost effective and widely used for covering small and medium size buildings. The solution is totally free from noise and active intermodulation products with less operational and maintenance cost. Mainsources for passive DAS solutions are Repeaters and Base Stations
2)Hybrid DAS solutions
Hybrid DAS solution is a combination of active and passive components, such as Fiber Optic Repeater based solutions. Solution consists of a master and remote unit which supports Tetra, GSM900/1800, UMTS900/2100 and LTE800/1800/2600  customer requirements. A master unit converts the RF signals to optical and this can be connected to remote units via Fiber Optical Cable. Remote unit converts the optical signals to original RF signal. Remote unit is further connected to a passive DAS to extend the coverage to the desired areas.
3)Active DAS
solution is designed to provide excellent RF coverage over large areas for multiple cellular services irrespective of carrier frequency or technology.This system consists of primary hub, secondary hub and remote units. Primary hub interfaces with the radio basestation and converts the RF signal to a digital signal (optical or electrical). This Primary hub can accept any wireless technology from a RF band ranging from 150MHz to 2700MHz which supports all the existing technologies (TETRA, CDMA, GSM, UMTS, LTE & Wi-Fi). The power source to the primary hub and secondary hub can be connected locally. All remote units can be powered centrally through a CAT5/6 cable from the secondary hub locations.