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A communication system operating with a center frequency of 900 MHz has a 20 Watt transmitter feeding a 21.6 dBi antenna array on top of a 50 m high tower through a cable with 5 dB loss. The receiving antenna is handheld at a height of 1.5 m, has a gain of 2.16 dBi, and feeds a matched receiver through a cable with 1 dB loss. To be understandable in the presence of noise, the minimum acceptable received signal power is -110 dBm.
a. Calculate the maximum range using free space path loss.
b. Calculate the maximum range using plane earth path loss.
c. Calculate the maximum range using Egli empirical path loss.
A power supply has an open-circuit voltage of 43.0 V and an internal resistance of 2.00 ?. What additional resistance should be added in series
Physics: Speed of car at bottom of driveway; initial speed of bullet, 20 A 2.10 x 10³ kg car starts from rest at the top of a 5.0 m long driveway that is sloped at 20° with the horizontal. If an average friction force of 4.0 x 10³ N impedes the mo..
1.Do you believe that managers in a business firm are dependent upon the trust, commitment, and effort of others within the firm?
A skier starts from rest at the top of a hill. The skier coasts down the hill and up a second hill, as the drawing illustrates. What must be the height h of the first hill
two small objects a and b are fixed in place and separated by 2.62 cm in a vacuum. object a has a charge of 1.29 micro
7.22 x1013 electrons flow through a transistor in 3.55 ms. What is the current (in mA) through the transistor
A box is sliding with a speed of 4.50 m/s on a horizontal surface when, at point P, it encounters a rough section. Use the work-energy theorem to find how far this box slides before stopping
two tiny conducting spheres are identical and carry charges of -20.2c and 54.8c. they are separated by a distance of
Determine the normal force exerted by the road on the car, the normal force exerted by the car on the 73-kg driver, and the car speed at which the normal force on driver equals zero.
a beam of light with red and blue components of wavelengths 670 nm and 425 nm respectively strikes a slab of fused
A 78.3 kg weight-watcher wishes to climb a mountain to work off the equivalent of a large piece of chocolate cake rated at 522 (food) Calories. How high must the person climb
a particle has a rest mass of 6.64times10-27 kg and a momentum of 2.10times10-18 kg ms.a what is the total energy
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