User's Manual Part 1
Draft5forRegulatoryReview
12.2.2
Anticipating Reflection of Radio Waves ...................................................... 132
12.2.3 Noting Possible Obstructions in the Fresnel Zone ...................................... 132
12.2.4 Radar Signature Detection and Shutdown .................................................. 133
12.3 Using Jitter to Check Received Signal Quality (Cyclone FSK Only) ............ 134
12.4 Using Link Efficiency to Check Received Signal Quality .............................. 135
12.4.1 Comparing Efficiency in 1X Operation to Efficiency in 2X Operation .......... 135
12.4.2 When to Switch from 2X to 1X Operation Based on 60% Link Efficiency ... 135
12.5 Considering Frequency Band Alternatives ................................................... 136
12.5.1 900-MHz Channels ...................................................................................... 137
12.5.2 2.4-GHz Channels ....................................................................................... 137
12.5.3 5.2-GHz Channels ....................................................................................... 138
12.5.4 5.4-GHz Channels ....................................................................................... 138
12.5.5 5.4-GHz OFDM Channels ........................................................................... 139
12.5.6 5.7-GHz Channels ....................................................................................... 140
12.5.7 Channels Available for PTP 400 and PTP 600 radios ................................ 140
12.5.8 Example Channel Plans for AP Clusters ..................................................... 140
12.5.9 Multiple Access Points Clusters .................................................................. 142
12.6 Selecting Sites for Network Elements .......................................................... 143
12.6.1 Resources for Maps and Topographic Images ........................................... 144
12.6.2 Surveying Sites............................................................................................ 144
12.6.3 Assuring the Essentials ............................................................................... 145
12.6.4 Finding the Expected Coverage Area ......................................................... 145
12.6.5 Clearing the Radio Horizon ......................................................................... 146
12.6.6 Calculating the Aim Angles ......................................................................... 146
12.7 Collocating Cyclone Modules ....................................................................... 147
12.8 Deploying a Remote AP ............................................................................... 148
12.8.1 Remote AP Performance ............................................................................ 149
12.8.2 Example Use Case for RF Obstructions ..................................................... 149
12.8.3 Example Use Case for Passing Sync ......................................................... 150
12.8.4 Physical Connections Involving the Remote AP ......................................... 151
12.9 Diagramming Network Layouts .................................................................... 152
12.9.1 Accounting for Link Ranges and Data Handling Requirements .................. 152
12.9.2 Avoiding Self Interference ........................................................................... 152
12.9.3 Avoiding Other Interference ........................................................................ 154
13 Engineering Your IP Communications ................................................................ 155