4
Table of Figure
Figure 1:
Hub and Spoke architecture (left) and Mesh Network (right) ..................................
6
Figure 2:
Radio Communications System .................................................................................................
7
Figure 3:
Wavelength is inversely proportional to frequency .......................................................
7
Figure 4:
Creation of intermodulation products ...................................................................................
9
Figure 5:
Radiation pattern of Isotropic (left) and Dipole (right) antennas ..........................
10
Figure 6:
Unidirectional (left), Bi-directional (center) and Omnidirectional (right)
antennas ......................................................................................................................................................................
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
Figure 9:
The first node to turn on will become a primary node .............................................
21
Figure 10:
The nodes are configured as primary if they are not within range of at
least 3 other primary nodes ...........................................................................................................................
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
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
bridging .......................................................................................................................................................................
25
Figure 17:
Other primary nodes within range of node 5 will also join the new
network .......................................................................................................................................................................
26
Figure 18:
All primary nodes will adopt the better network .......................................................
26
