The need for DAS will only grow and grow with the requirements to build out capacity. This is evident as ATT's network is struggling. To build out the macro network, you have to move the BTS inside the building.  Ironically, 75% of cellular and PCS calls now originate inside an actual building. SOLiD in my previous blogs has debuted here in the United States in 2010.  They have a  quote "solid" reputation in the Far East with over 60,000 DAS systems in place. They are proven, no vapor ware. What makes them unique and what  will allow them to  leap frog the traditional enterprise DAS players?

"Best of Breed" Filtering

• SAW Filtering – In addition to ceramic and cavity filtering, SOLiD also uses SAW filtering.  This much more precise filtering minimizes interference issues
• Dual Location Filtering – Filtering is performed at both the head end as well as in the remote unit.  This provides less chance of interference issues on isolated sections of the DAS.

Fully Balanced System (Downlink and Uplink)

• Flexible Power Output – Modules can be adjusted to provide from 0 dBm to 30 dBm (1Watt) of output; power can be capped anywhere within this range. This will never exceed FCC exposure requirements.
• Independently adjustable uplink/downlink – The uplink and downlink power are separately and individually adjustable. This enables better coverage with less chance of interference issues.

High Output Power

• More power output can reduce the number or remote units needed because each remote unit can support more antennas
• Service modules utilize separate amplifiers for each service with guarantees that all services will have full power and full signal strength.

www.solidtechusa.com