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What is Hybrid DAS? 2020/12/12

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 antennas on nd coaxial cable to distribute signal throughout a building. Because this configuration requires fewer RRUs, a hybrid DAS normally costs less than an active DAS.


 

A typical hybrid DASthat floor with coaxial cable.

 

ADVANTAGES

Cheaper than an active DAS system

No limits to length of cables in the digital backbone

 

DISADVANTAGES

More expensive than a passive system

Requires link budgeting on each floor

More complicated to install as it requires both fiber and coax

 

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