1. Broadband Fixed Wireless Field of Dreams?, Or The World Series? Chuck Kissner Chairman, DMC Stratex Networks

2. Broadband Fixed Wireless Why did our industry miss the target? What did we learn? What can we do for our customers?

3. The Golden Opportunity? MANY FEW Total Number of Med-Large Comm’l Buildings Number of Buildings Directly Reached by Fiber

4. 1996 – “It Was A Very Good Year” Little Direct Fiber Access T-1 Rates Justified $10K Wireless Links 38 GHz Spectrum Technology And Faith Solves All

5. Our Industry’s Response Revive an Old Technique –Point-to-Multipoint –Millimeter Bands Make Promises –Low Cost –Easy Deployment –Efficient Spectrum Usage Faith and Technology

7. Real World Topography Source: Winstar

8. Line of Sight Issues

10. New and Old Wireless Architectures Deliver Fiber Speed POP Fiber POP Ring Structure Shared Mesh Per Node* Current 45-465Mbps Future 45Mbps-1.9Gbps Per Node* Current 45-465Mbps Future 45Mbps-1.9Gbps Per Node* Current 45-155Mbps Future 45-622Mbps Per Node* Current 45-155Mbps Future 45-622Mbps * Node: Building, Subscriber, or UMTS access point PTP Point-to-Point String/Star

11. Remote Base Stations Remote Base Stations Remote Base Stations Fiber-Like Wireless Ring Structure

14. Paul’s Request to Us Equipment (on a cost per MBIT basis) –OC-3 links loaded Installation –One install serving multiple customers Ongoing operation –All on net Lowest Cost of

15. Real Solutions – What Can Industry Offer? Cost-effective High Capacity –Customer Trend –Shared and Dedicated 45 Mbps to OC-12 –Star, Trunk, Ring Network Configurations –Modular Capacity Chunks T1 and up –In-Building Interface and Distribution –Proactive Network Management Multiple Access Over-the-Air –Feature of High Capacity Systems –Probably lower frequencies –Maybe optical

16. Wireless – Filling the Bandwidth Gap Copper 1x Photonics 500 - 1mm x BBW 10 - 100x DSL / Cable Modem MMDS Point Fiber 100 kbps 1 Mbps 20 Mbps 40 Mbps 200 Mbps 600 Mbps 2 0 High & Ultra Hi-Cap Point-to-Point PTP PMP Sources: FBW & DMC Stratex Networks