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A police K-band radar is operating, with transmit power of 1000 Watts and antenna gain of 300 in linear units. The radar unit is designed to detect a target with a radar cross-section (RCS) of 6 sq. meters and its receiver can detect a signal with a minimum power of 10 pico Watts. A car is travelling at 100 mph (or 160kph) towards the police radar unit. The driver is using an inexpensive radar detector unit that has an antenna gain of 10 in linear units and a sensitivity of 10 micro Watts. (a) What is the maximum range of the police radar unit? (b) How far away can the car's radar detector receiver detect the police radar? (c) Does the driver have enough time to react and avoid the ticket?
The probability that a person will install a black telephone in a residence is estimated to be 0.3. Find the probability that the tenth phone installed in a new subdivision is the fifth black phone.
Problem Feeder - Transformer, A single-phase load is supplied through a 35 kV feeder whose impedance is 115 + j380 Ohms and a 35 kV, 2400 V transformer whose equivalent impedance is 0.26 + j1.21 Ohms referred to its low voltage side.
Build a home security system circuit using this program. The system must include 2 door sensors, 3 window sensors, 2 smoke detectors, 2 water leak sensors, and 2 motion detectors.
Evaluate the TL parameters. Include the effect of the earth as ideal. Do not incorporate the effect of the shield wires.
Inflation in years 1-5 equals 3.1 percent, 2.2 percent, 1.6 percent, 1.3 percent, and 1.1 percent, respectively.
Maximum Amount of Channels A Link Can Carry, A microwave radio link operates over a bandwidth of 400 MHz at C band. The link carries a number of channels of data using FDMA.
Line A extends from (2,2, 0) to (-2, 2, 0) and Line B extends from (2, -2, 0) to (-2, -2, 0). Each has a linear charge density l = 1 nC / m. You want to calculate the magnitude and direction of the electric field due to the two line charges for al..
In US, electric wires are classified based on their gauge numbers. The larger the gauge number is, the smaller the diameter of the cross-section of the wire becomes. You are given four different types of wire with gauge numbers 1, 3, 7, and 8.
Efficiency in a power transformer is 98.6% when loaded such that its core losses equal the copper losses. Calculate the per unit resistance of this transformer.
Compare the frequency response magnitudes for each of the responses above (will need to plot on a logarithmic scale). Comment on the observations noting things such as if the signals are resolvable, the size of the side lobes, etc.
An electric flux of 151 Nm2/C passes through a flat horizontal surface that has an area of 0.715 m2. The flux is due to a uniform electric field. What is the magnitude of the electric field if the field points 10.3° above the horizontal
Suppose that the sequence 110010011 is used as a synchronization sequence preamble to a data packet. Propose a method that can be used to allow the channel to distinguish the synchronization sequence from an identical data sequence within the pack..
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