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Avlite AvMesh Manuals
Manuals and User Guides for Avlite AvMesh. We have
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Avlite AvMesh manual available for free PDF download: Installation & Troubleshooting Manual
Avlite AvMesh Installation & Troubleshooting Manual (40 pages)
RF communications system
Brand:
Avlite
| Category:
Conference System
| Size: 1 MB
Table of Contents
Table of Contents
3
1 Glossary of Terms
5
Figure 1: Hub and Spoke Architecture (Left) and Mesh Network (Right)
6
2 Background
6
Figure 3: Wavelength Is Inversely Proportional to Frequency
7
Figure 2: Radio Communications System
7
Intermodulation
8
Modulation and Demodulation
8
Antennas
9
Gain
9
3 RF Fundamentals
7
Elements of a Radio Frequency Communications System
7
Figure 4: Creation of Intermodulation Products
9
Direction
10
Figure 6: Unidirectional (Left), Bi-Directional (Center) and Omnidirectional (Right)
10
Figure 7: Vertically (Left) and Horizontally (Right) Polarized Antennas
11
Figure 8: the First (Red), Second (Green) and Third (Blue) Fresnel Zones between the Transmitting and Receiving Antennas
14
In-Band Interference
15
Spectrum Analyzers
16
Types of Spectrum Analyzer
16
The Decibel Formula
17
Signal to Noise Ratio (SNR or S/N)
19
Figure 5: Radiation Pattern of Isotropic (Left) and Dipole (Right) Antennas
10
Polarization
11
RF Propagation
11
Line-Of-Sight Propagation
12
Interference
13
Fresnel Zones
13
4 Avmesh TM Communications System: Theory of Operation
20
Node Information
20
Figure 9: the First Node to Turn on will Become a Primary Node
21
Network Set-Up Procedure
21
Figure 10: the Nodes Are Configured as Primary if They Are Not Within Range of at
22
Figure 11: if the Node Is Within Range of at Least 3 Other Primary Nodes, It will Become a Reserve Node
22
Figure 12: if a Node Is Within Range of at Least 3 Other Primary and 3 Other Reserve Nodes, It will Remain as a Listen Only Node
23
Figure 13: Resulting Mesh Network
23
Network Bridging
24
Figure 14: Creation of 2 Different Network Ids, One at each End of the Runway
24
Figure 15: the Next Nodes to Turn on will be Independent of the Nodes at the Other End of the Runway
25
Figure 16: Node 5 will Become a Primary Node in Network 4 if Node 9 Accepts the
25
Figure 17: Other Primary Nodes Within Range of Node 5 will also Join the New
26
Figure 18: All Primary Nodes will Adopt the Better Network
26
5 Avlite Wireless Remote Controller
27
Radio Controller Menu
27
Operation Mode
27
Advanced Op Mode
28
Light Group
28
Intensity
28
Timeout Mode
28
Timeout Duration
29
Diagnostic
29
Controller Menu (Advanced)
30
6 Direct Connection
31
To Force a Primary Node
31
7 Rotary Switches
32
To Force a Reserve Node
32
8 Maintenance/Housekeeping of the Avmesh
32
TM Communications System
32
9 Troubleshooting
33
Identifying the Problem
33
Single Fixture Non-Functional
34
Whole Runway Non-Functional
35
Multiple Fixtures Non-Functional
36
Multiple Fixtures Non-Functional Continued
37
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