1. Digital Microwave Radio For Arizona The What The Why And the How Public Safety

2. What is Microwave ? Point to Point Wireless – FCC Part 101 Private, Secure & Hi-reliability Connectivity to 911 Center & Radio Sites Voice & Data Voice & Data

3. N.American Asynchronous Standards (Digital)

4. SONET

5. Analog Hierarchy - example

6. Common Digital Applications 6XXXXXXX 10XXX 11XXXXXXX 18XXXXX 23XXXX 38XXXX GHz 4DS1 8DS1 16DS1 28DS1 1DS3 3DS3 SONET

7. The Equipment

8. Why microwave? System Performance Frequency Bands (FCC) Capacity Requirements Path Characteristics, length, terrain, climate System Reliability Radio Equipment Configurations

9. Path Performance Frequency < the path length Capacity (Bandwidth) Gain – Tx power & Rx level Loss – Atmospheric conditions & Equipment Reliability (system gain - net path loss) Target = 99.999 % reliability, or 315 seconds/ year

10. 911 Center Radio Site A Loop & MHSB paths Radio Site B Radio Site C Loop MHSB NP Equipment Shelter Tower Primary & Emergency Power

11. Equipment Protection Tx 1 Rx 1 Modem & Mux Tx 1 Tx 2 Rx 2 Rx 1 Modem & Mux MHSB Redundant Tx & Rx Share same frequencies Non-Protected No protection failure Inexpensive

12. Equipment & Path Protection Modem & Mux Tx 1 Tx 2 Rx 2 Rx 1 MHSB/ SD Multi-path fade improvement Additional receiver connected to separate antenna

13. Tx 1 Rx 1 Modem & Mux Loop- Protection 2 paths per site RF is NP, Protection is at DS1- level Tx 1 Rx 1 Equipment & Path Protection

14. The How Turnkey Services FCC License Site Construction Factory Integration Installation, Test & Acceptance System Cutover Training, Maintenance, & Warranty

15. Project Team

16. Phase I System Definition Phase II Specifications Development Phase III Procurement Management Phase IV Implementation Phase VAcceptance CTA – PROJECT APPROACH

17. Arizona CTA COMMUNICATIONS Established 1984 HQ: Lynchburg, VA 20 Engineers & Staff Communications Subsidiary of HSMM: Major A/E Firm 350 Employees Ten Offices