Marquette County, Wisconsin Simulcast Paging System

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1 Marquette County, Wisconsin Simulcast Paging System Simulcast Forum IX Las Vegas, Nevada April 7, 2005 W6587 State Road 33 Portage WI page Losey Boulevard South La Crosse WI Walsh Road Madison WI

2 Introduction Four (4) Site Simulcast System Motorola Quantar Base Stations Harris Intraplex Multiplexers Harris SynchroCast Simulcast MDS LEDR900 Microwave Spectracom Master Oscillators Spectracom CTCSS with Phase Reversal (PL) Motorola SpectraTAC voter page 2

3 Marquette County, Wisconsin Population 15, Square Miles Gentle Rolling Terrain page 3

4 Marquette County Geography page 4

5 Tower Locations Westfield Neshkoro Montello Endeavor page 5

6 Paging Channel Westfield Neshkoro microwave microwave microwave Montello Endeavor page 6

7 Coverage Before and After page 7

8 Minimizing the Variables page 8 Identical Non-Variable Backhaul Keeping Backhaul Inside Overall System Digital Licensed Microwave Identical Audio Response Motorola Quantar Harris Multiplexers including co-located site Relay Keying to Eliminate Tone Keying Filters No Phase Reversal Identical Site Wiring Audio Equalization Not Required Eliminating Time Delay Changes Harris SynchroCast

9 System Equipment Selection page 9 Motorola Quantar vs. MTR2000 MDS LEDR900 Microwave vs. Unlicensed Simulcast Equipment with MDS LEDR900 MDS MX2100 Multiplexer Convex 2046 Convex 2042 with Equalizer Convex Plus 1 Harris Multiplexer and SynchroCast Spectracom Master Oscillator Spectracom CTCSS with Phase Reversal (PL) Convex 806A TIMS

10 System Diagram Spectracom CTCSS Montello Audio Splitter Spectracom GPS Master Oscillator Motorola Quantar Transceiver Harris Intraplex Harris Intraplex Harris Intraplex Harris Intraplex MDS LEDR 900 MDS LEDR 900 MDS LEDR 900 MDS LEDR 900 MDS LEDR 900 MDS LEDR 900 Spectracom GPS Master Oscillator Harris SynchroCast Spectracom GPS Master Oscillator Harris SynchroCast Spectracom GPS Master Oscillator Harris SynchroCast Spectracom CTCSS page 10 Motorola Quantar Transceiver Endeavor Spectracom CTCSS Motorola Quantar Transceiver Westfield Spectracom CTCSS Motorola Quantar Transceiver Neshkoro

11 Harris SynchroCast and MDS LEDR900 page 11

12 Spectracom and Co-Located Multiplexer page 12

13 Motorola Quantar and MTR2000 Talkaround Receiver page 13

14 Spectracom CTCSS Generation and Phase Reversal page 14

15 Audio Distribution page 15

16 Audio Distribution page 16

17 PLC Type Relays for Transmitter Keying page 17

18 page 18 Optimization Setting PL Monitor Receiver Discriminator Audio and Scope Use Service Monitor to Set Desired Deviation on Scope Set all Spectracom PL Levels During Same Session Requires Technician at Each Site Setting Audio Levels Monitor Receiver Speaker Audio and Scope (filter out PL) Use Service Monitor to Set Desired Deviation on Scope Set all levels During Same Session using Intraplex Requires Single Site Hear All Simulcast Transmitters Setting Delay Automatic for SynchroCast Sites Co-Located Site uses Stand-Alone Multiplexer Setting PL Phase Reversal Timeout Transmitter Keying Goes Through Spectracom CTCSS Factory Default at 150 ms

19 Optimization Equipment page 19

20 Monitor Receiver page 20

21 Convex TIMS Test Set page 21

22 page 22 Optimization Notes and Summary Optimization Notes Levels Optimized in 3 Hours Setting delay of Co-Located Multiplexer Setting Timing of PL Phase Reversal de-key TIMS Time Delay Measurements MDS LEDR900 Minimum Delay Good Suppler Support All Around All Cabling Included with SynchroCast Optimization Smooth, All Things Considered Considerations for Future Deployments Harris SynchroCast at Co-Located Site

Simulcast Optimization Techniques

www.rfstore.com Simulcast Optimization Techniques Simulcast Forum XII Las Vegas, Nevada February 28, 2008 305 East Albert Street Portage WI 53901 608-745-3300 3470 Losey Boulevard South La Crosse WI 54601