Motorola Mototrbo - Page 5

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2.4.3.2 Services Provided to a Radio User.................................................. 53
2.4.3.3 Services Provided to a Location Application.................................... 53
2.4.3.4
GPS Revert Channel............................................................................ 54
2.4.3.5 Enhanced GPS Revert Channel ...................................................... 55
2.4.3.6 Data Revert Channel ....................................................................... 65
2.4.4 Telemetry Services ................................................................................... 65
2.4.4.1 Physical Connection Information ..................................................... 66
2.4.4.2 Telemetry Examples ........................................................................ 67
2.4.5 Data Precedence and Data Over Voice Interrupt...................................... 68
2.5 Scan ................................................................................................................... 69
2.5.1 Priority Sampling ....................................................................................... 70
2.5.2 Channel Marking....................................................................................... 71
2.5.3 Scan Considerations ................................................................................. 72
2.5.3.1 Scanning and Preamble .................................................................. 73
2.5.3.2 Channel Scan and Last Landed Channel ........................................ 74
2.5.3.3 Scan Members with Similar Receive Parameters............................ 75
2.5.4 Transmit Interrupt and Scan...................................................................... 77
2.6 Site Roaming...................................................................................................... 78
2.6.1 Passive Site Searching ............................................................................. 79
2.6.2 Active Site Searching................................................................................ 81
2.6.3 Roaming Considerations........................................................................... 83
2.6.3.1 Configuring a Roam List .................................................................. 83
2.6.3.2 Scan or Roam.................................................................................. 85
2.6.3.3 Configuring the Roaming RSSI Threshold....................................... 85
2.6.3.4 Setting Beacon Duration and Beacon Interval................................. 90
2.6.3.5 Emergency Revert, GPS/Data Revert, and Roaming
Interactions........................................................................................... 92
2.6.3.6 Performance while Roaming............................................................ 94
2.6.3.7 ARS Registration on Roaming......................................................... 95
2.7 Voice and Data Privacy ...................................................................................... 95
2.7.1 Types of Privacy........................................................................................ 95
2.7.1.1 AES Configuration in MOTOTRBO.................................................. 96
2.7.2 Strength of the Protection Mechanism ...................................................... 96
2.7.3 Scope of Protection................................................................................... 97
2.7.4 Effects on Performance............................................................................. 98
2.7.5 User Control Over Privacy ........................................................................ 99
2.7.6 Privacy Indications to User...................................................................... 100
2.7.7 Key Mismatch.......................................................................................... 101
2.7.8 Keys and Key Management .................................................................... 101
2.7.9 Multiple Keys in a Basic Privacy System ................................................ 102