How tall must the antennas be if the link operates on a frequency of 1450Mhz, D1=7miles, D2=11miles, and the obstruction is 85 feet high?

Practice Problem Fresnel Zone Clearance

How tall must the antennas be if the link operates on a frequency of 2.450Ghz, D1=5miles, D2=11miles, and the obstruction is 60 feet high?

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1. How tall must the antennas be if the link operates on a frequency of 900Mhz and the total distance is 12 miles? Heights are in feet above sea level and distance is in miles. HAASL_{HA} = 550 feet, HAASL_{HB} = 545 feet, HAASL_{OBS-4.5mi} = 545 feet, HAASL_{OBS-9mi} = 545 feet.

2. What is the minimum height of H_{a} if H_{b} has to be mounted 60' above the calculated level?

1. How tall must the antennas be if the link operates on a frequency of 2.450Ghz and the total distance is 18 miles? Assume a 60' obstruction at each point of concern. Heights are in feet above sea level and distance is in miles. HAASL_{HA} = 460', HAASL_{HB} = 455', HAASL_{OBS-6mi} = 480', HAASL_{OBS-10mi} = 480'.

Obstruction at 6 miles Obstruction at 10 miles

2. How much must H_{B} increase if H_{A} is limited to 2/3 of the equal tower height solution?

3. How must H_{a} and H_{B} change to adjust for the terrain HAASL?

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How tall must the antennas be if the link operates : How tall must the antennas be if the link operates on a frequency of 2.450Ghz, D1=5miles, D2=11miles, and the obstruction is 60 feet high? |

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