Office of the Chief Technology Officer: Wireless Accelerated Responder Network pg1
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logoWireless Accelerated Responder Network
 
The Wireless Accelerated Responder Network (WARN) is the nation’s first city-wide broadband wireless public safety network. This pilot network was unveiled in September 2004 and was first operationally used in January 2005 for the Inauguration followed by the State of the Union. WARN is supported, managed and operated by the District of Columbia Office of the Chief Technology Officer’s (OCTO) Wireless Programs Office (WPO).  WARN consists of 12 radio sites and 200 network devices (i.e. PC cards) that facilitate wireless interconnection of local and federal public safety mobile devices throughout the District of Columbia. In addition, users of the network can access applications that, up to this time, were only accessible from desktop computers.

WARN is a pilot network run on an experimental license in the 700 MHz band provided by the FCC. The District anticipates that use of this network to help persuade Congress to allocate the spectrum necessary for the deployment of broadband public safety networks by state, county and local governments. In the interim, we are soliciting feedback from our first responder WARN users to demonstrate the network’s capabilities to the public safety community. 
 
Please take a moment to fill out our customer survey available at the link below. This short survey can be submitted online.
 
Network Attributes:
  • Covers 95 percent of the District
  • Uplink rate—900 kbps (peak)/ 300 kbps (average)
  • Downlink rate—3 Mbps (peak)/ 900 kbps (average)
  • Low latency (30–50ms)
  • Full mobility (communications sustained while device mobile throughout the city)
  • Scalability (Frequency reuse of 1 allows for “plug-and-play” site for capacity increase)
  • Dedicated Public Safety network—no contention with cellular or commercial users.
  • All IP network; features include full quality of service (QOS) capabilities, and static IP addresses
View the video below to learn more about WARN.
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