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TRACER 6000 Series Integrated System Manual Section 2 Microwave Path Engineering Basics
612806420L1-1F Copyright © 2005 ADTRAN, Inc. 27
7. OTHER CONSIDERATIONS
Path Availability
The path availability of a wireless link is a metric that expresses the fractional amount of time a link is
available over some fixed amount of time, and depends on several factors. Path availability is expressed as
where the parameters are
a terrain factor
b climate factor
f carrier frequency (GHz)
d path length (miles)
F fade margin (dB)
or
Table 11. Minimum Antenna Height for Given Path Lengths (km and m)
Path Length
(kilometers)
Min. Antenna Height
at 2.4 GHz
(meters)
Min. Antenna Height
at 5.8 GHz
(meters)
2 8.0 5.1
4 11.4 7.4
6 14.2 9.3
8 16.8 11.1
10 19.2 12.8
14 23.8 16.3
16 26.1 18.2
18 28.5 20.0
20 30.9 22.0
22 33.3 24.0
24 35.9 26.1
26 38.4 28.3
28 41.1 30.6
30 43.9 32.9
32 46.7 35.4
34 49.6 38.0
36 52.6 40.6
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- TRACER 6000 SERIES 1
- Trademarks 2
- To the Holder of the Manual 2
- About this Manual 2
- Revision History 3
- Safety Instructions 4
- FCC-Required Information 5
- FCC Output Power Restrictions 6
- Table of Contents 9
- SYSTEM DESCRIPTION 11
- 1. SYSTEM OVERVIEW 12
- 2. FEATURES AND BENEFITS 12
- Configuration and Management 12
- Operational 12
- Ω Interface 13
- 1. LINE-OF-SIGHT 16
- Terminology 16
- 2. DECIBELS 16
- 4. RECEIVER POWER 17
- Antenna Gain 18
- G 10 log k 18
- Transmitted Power (P 20
- Carrier Wavelength (λ) 20
- Path Distance (d) 21
- System Losses (L) 21
- Path Loss (L 22
- 5. RECEIVER SENSITIVITY 23
- 6. ANTENNA INFORMATION 24
- Antenna Alignment 24
- TRACER RSSI Test Points 24
- Real-time Signal Values 24
- Antenna Beam Patterns 25
- 7. OTHER CONSIDERATIONS 27
- Path Availability 27
- Terrain Factor (a) 28
- Climate Factor (b) 28
- ENGINEERING GUIDELINES 29
- 1. EQUIPMENT DIMENSIONS 30
- 2. POWER REQUIREMENTS 30
- *TRACER 64x0 high 31
- *TRACER 6420 (L1) only 31
- AUX RS232 Interface (RJ-45) 32
- CRAFT Port (DB-9) 33
- 5. NETWORK MODULE INTERFACES 37
- 4xT1 Module 37
- Quad Ethernet Switch Module 37
- Ω Unbalanced Cable Pinout 39
- 6. AT-A-GLANCE SPECIFICATIONS 40
- Encryption Type 41
- NETWORK TURNUP PROCEDURE 43
- 1. INTRODUCTION 44
- 2. TOOLS REQUIRED 44
- Contents of Shipment 44
- 4. CHANNEL SELECTION 46
- 5. GROUNDING INSTRUCTIONS 47
- 7. MOUNTING OPTIONS 48
- TRACER 6420 49
- 8. INSTALLING MODULES 50
- Ω) Module Interfaces 51
- USER INTERFACE GUIDE 53
- Terminal Menu Window 55
- Moving Through the Menus 56
- 2. MENU AND SYSTEM CONTROL 56
- Password Protection 56
- 3. MENU DESCRIPTIONS 57
- > SYSTEM STATUS 57
- > MAIN MENU 59
- > SYSTEM CONFIGURATION 60
- > RF LINK CONFIGURATION 63
- Channel A 64
- Channel B 64
- > RF LINK ERROR HISTORY 66
- > DATAPATH PROVISIONING 69
- A through D) 70
- > E1X PERFORMANCE HISTORY 73
- > T1X PERFORMANCE HISTORY 77
- 1 through 4) 78
- > ETHERNET SWITCH STATUS 79
- RX PACKET 80
- MGMT Ethernet interface 82
- Figure 32. Ping Utility 82
- PING ADDRESS field. The 83
- DEFAULT VALUES) 83
- OCAL MGMT PORT 84
- EMOTE MGMT PORT 84
- OCAL IDU 85
- EMOTE IDU 85
- ENABLED by default 86
- > SYSTEM ALARMS 87
- YSTEM ALARMS > TEMP ALARMS 88
- DETAIL LEVEL PROCEDURES 89
- Prerequisite Procedures 91
- ANAGEMENT/UTILITIES 96
- 100 612806420L1-1F 100
- 3. Telnet to the TRACER 64x0 101
- 102 612806420L1-1F 102
- Introduction 103
- Tools and Materials Required 103
- CONTENTS 109
- 2. MIB COMPILATION ORDER 110
- TROUBLESHOOTING GUIDE 125
- X POWER “fuel gauge” on 130
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