How tall must the antennas be if the link operates

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Reference no: EM13187614

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?

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Practice Problem                              Fresnel Zone Clearance

 

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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.  HAASLHA = 550 feet, HAASLHB = 545 feet, HAASLOBS-4.5mi = 545 feet, HAASLOBS-9mi = 545 feet.

2. What is the minimum height of Ha if Hb has to be mounted 60' above the calculated level?

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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.  HAASLHA = 460', HAASLHB = 455', HAASLOBS-6mi = 480', HAASLOBS-10mi = 480'.

Obstruction at 6 miles                                                                            Obstruction at 10 miles

2. How much must HB increase if HA is limited to 2/3 of the equal tower height solution?

3. How must Ha and HB change to adjust for the terrain HAASL?

Reference no: EM13187614

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