antenna & feedline design problem

Project Description:

use this link for graph http://n9zia.ampr.org/path.main.cgi

1) the required height of the antenna needed at each fire station to provide a minimum clear fresnel zone path. use the fresnel zone calculator we learned in class. remember that the central radio antenna is mounted at 200 feet and adjust the remote site antenna height as needed.

2) the type of antenna needed at each of the four locations – 200 foot tower, sheriff’s office and both fire stations. you have the following choices for antennas:
a) omni directional antenna with 10dbi of gain. cost = $125
b) panel (sector) antenna with 16dbi of gain and a beamwidth of 120ᵒ. cost = $75
c) panel (sector) antenna with 20dbi of gain and a beamwidth of 90ᵒ. cost = $85
d) dish antenna with 30dbi of gain and a beamwidth of 5ᵒ. cost = $130
e) dish antenna with 35dbi of gain and a beamwidth of 3ᵒ. cost = $380

3) supporting calculations in the form of a word document. you may either enter the equations manually using equation editor or embed an excel sheet. whichever you choose i must be able to clearly see how you arrived at your figures.
a) required signal strength (rx sensitivity with design fade margin added).
b) actual signal strength
c) the total amount of antenna gain required for each link.
d) the selected antennas for each site. remember that the offices all connect to a single radio on the central tower.
e) fresnel zone interpretations. include the graphic output of the calculator for each link.
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Price Type: Negotiable

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