User's Manual

February 2004 iii
Contents
1. Introduction .......................................................................................................1
2. Design Principles of a M/LC Repeater Network............................................3
2.1 General Hardware Selection Guidelines.......................................................................... 3
2.1.1 M/LC Infrastructure Hardware...............................................................................................3
2.1.2 Data Rates and Range.............................................................................................................4
2.1.3 M/LC Point-to-Point Links.....................................................................................................4
2.1.4 Temperature Related Decisions..............................................................................................4
2.1.5 Sizing a Solar Repeater ..........................................................................................................4
2.1.6 Lightning Protection...............................................................................................................5
2.2 General Coverage Guidelines .......................................................................................... 6
2.2.1 Locations, Repeater Quantities, and Antennas.......................................................................6
2.2.2 Location Considerations and Antenna Selection....................................................................6
2.2.3 Overall System Throughput Design Considerations ..............................................................7
2.2.4 Channel Selection...................................................................................................................7
2.3 The 302395 Repeater Electronics Unit............................................................................8
2.3.1 Approved Antennas................................................................................................................8
2.4 FCC Statements ............................................................................................................... 9
3. Antenna Evaluation.........................................................................................11
3.1 Antenna Characteristics ................................................................................................. 12
3.1.1 Antenna Coverage Patterns ..................................................................................................12
3.1.2 Antenna Gain........................................................................................................................13
3.1.2.1 dBi (Decibels Relative to Isotropic).......................................................................................13
3.2 Antenna Types ............................................................................................................... 14
3.3 Antenna Patterns............................................................................................................ 15
3.3.1 Lobes ....................................................................................................................................15