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What is active DAS?
Nov , 07 2020
Active DAS An active DAS converts the analog radio frequency transmissions from the signal source to a digital signal for distribution. A master unit performs this analog-to- digital conversion. The master unit may digitize the signal from a single carrier or multiple carriers. Once converted, the DAS transmits the digital signal over fiber optic or Ethernet cables to remote radio units (RRUs) tha...
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Distributed antenna system
Nov , 26 2020
A distributed antenna system, or DAS, is a network of spatially separated antenna nodes connected to a common source via a transport medium that provides wireless service within a geographic area or structure.DAS antenna elevations are generally at or below the clutter level, and node installations are compact. Adistributed antennasystem may be deployed indoors (an iDAS) or outdoors (an ...
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What is Hybrid DAS?
Dec , 12 2020
A hybrid DAS A hybrid DAS combines characteristics of passive parts(including RF antenna, directional coupler, power divider,hybrid coupler)and active systems. The RRUs are separate from the antennas, allowing the system to use both fiber optic cable a configuration includes an RRU on each floor that converts from the digital signal to analog RF. The analog RF signal is then connected to multiple ...
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Public Safety Distributed Antenna System (PS DAS)
Jan , 09 2021
A Public Safety Communications system is a wireless communications system used by first responder and emergency services personnel such as police, fire, emergency medical, homeland security, and disaster response agencies to prevent or respond to incidents or situations that pose a threat to people or property. Bands of frequencies, especially in the VHF and UHF parts of the spectrum, were allocat...
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Several knowledge about 5G base station
Aug , 28 2021
5G is on.Most countries of the world are building 5G network to develop all walks of life better.And how much do you know about 5G ? Several questions and answers below will help you know more about it. Q:Who has 5G first in the world? A:South Korea.South Korea is the country which deployed the first 5G network and is expected to stay in the lead as far as penetration of the technology...
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What is 5G
Dec , 11 2021
What is 5G? Different from 4G, 3G, and 2G, 5G is not a single wireless access technology, nor several new wireless access technologies, but a general term for the integrated solutions of a variety of new wireless access technologies and existing wireless access technologies (4G backward evolution technology). To some extent, 5G is a truly converged network.
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' smart brains' guaranteed the communication system for Beijing Winter Olympics
Feb , 12 2022
The 2022 Beijing Winter Olympic Games is coming, stable network communication is an essential element to ensure the smooth running of sports events, but the overall network complexity of the event is quite high, and the network operation and maintenance of the Winter Olympic Games are facing considerable challenges. China Unicom Winter Olympics Communications Operation Command Center (TTOC) is ful...
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DAS & Small Cells: What’s The Difference?
Oct , 28 2022
The radio heads of a distributed antenna system are essentially “dummy” radio heads: these access points don’t provide any signal processing like a small cell antenna system would. Instead, DAS radio heads relay the signal to a cellular base station located at a central hub. Once the signal is relayed to the hub, it’s processed at that central location. Base stations installed at a central hub are...
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