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A submarine uses a λ/2 -dipole antenna for RFcommunications with the Naval Command Control and OceanSurveillance Center that also equipped with a λ/2-dipole. Operating frequency is 30 MHz. Find the lengthof both antennas. Assume that the submarine is completely submerged in the water.
(e) What is the probability of error if we make hard-decision on each branch and then use majority-logic combining to make the final decision (f) What is the probability of error if we select the "best" two branches, and then use MRC with these two..
Show that the power in a three-phase, three-wire system with balanced loads is constant at every instant. Deduce an expression for the power in terms of the line voltage, line current, and the power-factor.
Calculate the magnitude and phase angle of the current through the coil, and the magnitude and phase angle of the voltage across the coil. Also, calculate S, P and Q for the circuit
design an 8-bit programmable microprocessor-compatible TIMER IC by doing the following steps: Specify, draw , and clearly label( the functional name), the complete set of 8-bit registers that will be needed in the TIMER.
In the region of space for which x > 0, the x-component of a steady magnetic field is described by Bx = bx^2 where b is a positive constant that has dimensions of T/m^2. (a) Which of Maxwell's equations implies this cannot be the only component of ..
a. Neglecting resistance, determine the synchronous, transient and sub-transient reactances. b.If the machine is delivering 1.0 p.u. current at 0.8 power factor lagging at the rated terminal voltage when the short circuit is applied.
Design a combinational circuit that can detect whether a pattern of at least three adjacent 1s occur anywhere in an 8-bit input, and that outputs a 1 in that case. The inputs are a , b, c, d, e, f, g, and h, and the output is y.
The maximum decoded voltage at the receiver is ±2.56 V. If a minumum dynamic range of 46 dB is required, for an arbitrary analog signal, calculate the minimum sample rate, the minimum number of bits used in the PCM code, and the resolution.
They melt when 3.9 × 104 J of heat is added to A and when 11 × 104 J is added to B. (a), (b) Determine the latent heat of fusion for the substance from which each object is made. (c) Find the heat required to melt object A when its mass is 7.4 kg.
A wire is bent in the form of a half loop of radius a = 10 mm and charged with a line charge density XL = 10-9 C/m. Calculate the field intensity at center of the loop.
A memory system is needed in a new design to support a small amount of data storage outside of the processor. The design is o be based on the 16 K bit CY7C128A SRAM organized as 2 K x 8.
Write a program to count the number of even elements of an array of N 16-bit elements. The array is stored at memory locations starting from $900. Use assembler
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