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TABLE OF CONTENTS <br /> EXECUTIVE SUMMARY <br /> SECTION I — INTRODUCTION 4 <br /> 1.1 PROJECT BACKGROUND 4 <br /> 1.2 PROJECT OBJECTIVE 5 <br /> 1.3 PROJECT WORKGROUP 6 <br /> 1.4 PROJECT METHODOLOGY 6 <br /> SECTION II — EXISTING PUBLIC SAFETY RADIO SYSTEMS IN ANOKA COUNTY 7 <br /> 2.1 SYSTEMS AND RADIO CHANNELS 7 <br /> 2.1.1 Fire Service Radio Systems in Anoka County 7 <br /> 2.1.2 Law Enforcement Radio Systems in Anoka County 7 <br /> 2.2 SURVEY QUESTIONNAIRE 8 <br /> 2.2.1 Construction of the Questionnaire Document 8 <br /> 2.2.2 Results of the Analysis of Questionnaires 9 <br /> 2.3 ANALYTICAL DETERMINATION OF RADIO COVERAGE 10 <br /> 2.4 RADIO CHANNEL CONGESTION 15 <br /> 2.5 BACK-UP RADIO FACILITIES 17 <br /> 2.6 COMMUNICATIONS FACILITIES BETWEEN DISPATCH CENTER AND THE RADIO SITES 18 <br /> 2.7 STATUS OF ANTENNAS AND TRANSMISSION LINES 18 <br /> 2.8 BACK-UP POWER 18 <br /> 2.9 INVENTORY AND AGE OF RADIO EQUIPMENT 19 <br /> 2.10 BACK-UP DISPATCHING 20 <br /> SECTION III — ALTERNATIVE PUBLIC SAFETY RADIO SYSTEMS IN ANOKA COUNTY 21 <br /> 3.1 ENHANCE EXISTING RADIO SYSTEMS 21 <br /> 3.1.1 Congestion 22 <br /> 3.1.2 Coverage Relief 24 <br /> 3.1.3 System Reliability Concerns 24 <br /> 3.1.4 Interoperation Communications 25 <br /> 3.1.5 Other Needs 25 <br /> 3.2 TRIMMED 800 MHz RADIO SYSTEM ALTERNATIVES 25 <br /> 3.3 TETRA TECHNOLOGY 26 <br /> 3.4 COST ESTIMATES FOR ALTERNATIVES 27 <br /> 3.4.1 Cost Estimates for Items that are Independent of Radio System Alternative Selected 27 <br /> 3.4.2 Cost Estimate for an Enhanced VHF Radio System 28 <br /> 3.4.3 Cost Estimate for Mn/DOT Digital Modulation 800 MHz Radio System 29 <br /> 3.4.4 Cost Estimate for Stand-alone 800 MHz Radio System 30 <br /> 3.5 COMMUNICATIONS LINKS TO FIXED LOCATION RADIO SITES 30 <br /> SECTION IV — CONCLUSIONS AND RECOMMENDATIONS 33 <br /> 4.1 GENERAL CONCLUSION 33 <br /> 4.2 TETRA 33 <br /> 4.3 ENHANCEMENT VERSUS REPLACEMENT OF PUBLIC SAFETY LAND MOBILE <br /> RADIO SYSTEMS IN ANOKA COUNTY 34 <br /> 4.3.1 Base Alternative Directions 34 <br /> 4.3.2 Evaluation of Base Alternative Directions 34 <br /> 4.3.3 Altemative System Direction Cost Issues 37 <br /> 4.4 SCHEDULE AND CRITICAL DECISION POINTS 38 <br /> 4.4.1 Back-up Dispatching 38 <br /> 4.4.2 Second 24 Hour Law Enforcement Dispatch Channel 39 <br /> 4.4.3 Fire Service Alerting Through Radio Paging 39 <br /> 4.4.4 Long-term Direction Implementation Schedule 39 <br /> APPENDIXES 42 <br /> Ronald Vegemast Engineering Inc. Report Anoka County <br />