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Digital Microwave Radio For

Digital Microwave Radio For. Public Safety. Arizona. The What The Why And the How. What is Microwave ?. Point to Point Wireless – FCC Part 101 Private, Secure & Hi-reliability Connectivity to 911 Center & Radio Sites. Voice & Data. Voice & Data.

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Digital Microwave Radio For

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

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

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

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

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

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

  15. Project Team

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

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

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