In communications Find the following dimensions and related matters of a 3 element yagi-uda type of...
In communications
Find the following dimensions and related matters of a 3 element yagi-uda type of antenna as follows:
a. element dimension in feet
b. element spacing in feet
c. type of transmission line and impedance to be used.
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In communications
Find the following dimensions and related matters of a 3 element
yagi-uda type of...
RF Communications CITIZEN BAND RADIO TEST Read each question carefully. Write the letter for the correct...
RF Communications CITIZEN BAND RADIO TEST Read each question carefully. Write the letter for the correct answer in the blank space provided. 1. The Citizen Band frequency range is a. 27.965-28.405 MHz b. 26.965-27.405 kHz c. 27.965 -28.405 kHz d. 26.965 27.405 MHz 2, when intelligence is injected into the final RF power amplifier, it is considered a. low-level modulation b. high-level modulation c. RF power modulation d. mid-level modulation la PAFre is used to calculate the_. M2Pc 2 a....
How can a smith chart be used to solve the following: A load of impedance ZL...
How can a smith chart be used to solve the following:
A load of impedance ZL is connected to a transmission line of characteristic impedance 75 2. Along the transmission line, a voltage maximum of 3 volts is found at a position 0.2 wavelength from the load, and the voltage minimum is 1.5 volts. (a) What is ZL? (b) It is desired to match the load to the line with a shunt capacitor. The frequency of the wave is 10...
Question4 (a) What two quantities differ in value in order for a signal to be reflected...
Question4 (a) What two quantities differ in value in order for a signal to be reflected from the [396] (b) State precisely the terminating impedance of a transmission line for which the voltage reflection coefficient is: 3%] 3%] (ii) 1 In each case give a brief explanation in terms of the relations between the forward and reverse propagating voltages or currents. (c) In transmission line theory, what is a quarter wave transformer? Give one example of[5%] how one might be...
Problem 3-15. Steady-State Conditions on a Transmission Line ine Che Chap. 3 3-11. A certain telephone...
Problem 3-15.
Steady-State Conditions on a Transmission Line ine Che Chap. 3 3-11. A certain telephone cable has the following electrical characteristics: R = 40 /mi L = 1.1 mH/mi G = negligible C = 0.062 F/mi Loading coils are added which provide an additional inductance of 30 m / well as an additional resistance of 8 l/mi. Obtain the attenuation constan phase velocities at frequencies of 300 Hz and 3300 Hz. If the coil spacing is 1/6 at a...
41. Which of the following types of communications cabling has the longest usable transmission distance? A....
41. Which of the following types of communications cabling has the longest usable transmission distance? A. Single-mode optical fiber B. Multimode optical fiber C. Category 6A D. Category 6 42. What's the operating frequency of a Category 5 cable that's 1,500 feet long at ACR = 0? A. 4.5 MHz B. 10 MHz C. 20 MHz D. 200 MHz 43. All of the following statements are correct except: A. Plenum cables don't produce toxic gases when they burn. B. A...
For the beam shown above, with the hole and notch (change in dimensions)shown, answer the following...
For the beam shown above, with the hole and notch (change in
dimensions)shown, answer the following questions:
a. what is the stress at the hole?Express this in terms of
P.Tell me the value of K you used.
b.What is the stress at the change in dimension?Express this in
terms of P.Tell me the value of K you used.
c.where will this beam fail - at the hole or at the change in
dimension?
d.What is the maximum force P which...
2.20 Use the Smith chart to find the following quantities for the transmission line circuit shown...
2.20 Use the Smith chart to find the following quantities for the transmission line circuit shown in the accompanying figure: (a) The SWR on the line. (b) The reflection coefficient at the load. (c) The load admittance. (d) The input impedance of the line (e) The distance from the load to the first voltage minimum. (f) The distance from the load to the first voltage maximum. ZL-60+)50 Ω
And the related algorithms: (20 points) Consider the following strategy for choosing a pivot element for...
And the related
algorithms:
(20 points) Consider the following strategy for choosing a pivot element for the Partition subroutine of QuickSort, applied to an array A. .Let n be the number of elements of the array A. If n 24, perform an Insertion Sort of A and return. Otherwise: Choose 2n/2)| elements at random from n; let S be the new list with the chosen elements. Sort the list S using Insertion Sort and use the median m of S...
application in broad band communications less than or equal to 0.6ms (that is 600 usec). (2...
application in broad band communications
less than or equal to 0.6ms (that is 600 usec). (2 poinS Problem 2: Queuing Theory 110 points] A computer system, A, generates packets destined to another Computer System B thru a router R. We are interested at the traffic analysis at the router R. The router receives packets as input, processes them and sends packets to Computer B. Packets are generated by Computer A at a rate of 85 packets/sec following a Poisson process...
a 270-mile transmission line has 220KV, 3 phase, 60 cps, between conductors at the supply station...
a 270-mile transmission line has 220KV, 3 phase, 60 cps, between conductors at the supply station end. The impedance, z = 0.18+j0.842 ohms per mile. The admittance, y = j5.01x10^-6 ohms per miles. Find the following: a. Find the ABCD constant of the line b. What is the voltage at the load end when the line has no load and the charging current. c. What is the Vs and Is for a load of 125 MW at 200KV and 0.866...
RF Communications CITIZEN BAND RADIO TEST Read each question carefully. Write the letter for the correct answer in the blank space provided. 1. The Citizen Band frequency range is a. 27.965-28.405 MHz b. 26.965-27.405 kHz c. 27.965 -28.405 kHz d. 26.965 27.405 MHz 2, when intelligence is injected into the final RF power amplifier, it is considered a. low-level modulation b. high-level modulation c. RF power modulation d. mid-level modulation la PAFre is used to calculate the_. M2Pc 2 a....
How can a smith chart be used to solve the following:
A load of impedance ZL is connected to a transmission line of characteristic impedance 75 2. Along the transmission line, a voltage maximum of 3 volts is found at a position 0.2 wavelength from the load, and the voltage minimum is 1.5 volts. (a) What is ZL? (b) It is desired to match the load to the line with a shunt capacitor. The frequency of the wave is 10...
Question4 (a) What two quantities differ in value in order for a signal to be reflected from the [396] (b) State precisely the terminating impedance of a transmission line for which the voltage reflection coefficient is: 3%] 3%] (ii) 1 In each case give a brief explanation in terms of the relations between the forward and reverse propagating voltages or currents. (c) In transmission line theory, what is a quarter wave transformer? Give one example of[5%] how one might be...
Problem 3-15.
Steady-State Conditions on a Transmission Line ine Che Chap. 3 3-11. A certain telephone cable has the following electrical characteristics: R = 40 /mi L = 1.1 mH/mi G = negligible C = 0.062 F/mi Loading coils are added which provide an additional inductance of 30 m / well as an additional resistance of 8 l/mi. Obtain the attenuation constan phase velocities at frequencies of 300 Hz and 3300 Hz. If the coil spacing is 1/6 at a...
For the beam shown above, with the hole and notch (change in
dimensions)shown, answer the following questions:
a. what is the stress at the hole?Express this in terms of
P.Tell me the value of K you used.
b.What is the stress at the change in dimension?Express this in
terms of P.Tell me the value of K you used.
c.where will this beam fail - at the hole or at the change in
dimension?
d.What is the maximum force P which...
2.20 Use the Smith chart to find the following quantities for the transmission line circuit shown in the accompanying figure: (a) The SWR on the line. (b) The reflection coefficient at the load. (c) The load admittance. (d) The input impedance of the line (e) The distance from the load to the first voltage minimum. (f) The distance from the load to the first voltage maximum. ZL-60+)50 Ω
And the related
algorithms:
(20 points) Consider the following strategy for choosing a pivot element for the Partition subroutine of QuickSort, applied to an array A. .Let n be the number of elements of the array A. If n 24, perform an Insertion Sort of A and return. Otherwise: Choose 2n/2)| elements at random from n; let S be the new list with the chosen elements. Sort the list S using Insertion Sort and use the median m of S...
application in broad band communications
less than or equal to 0.6ms (that is 600 usec). (2 poinS Problem 2: Queuing Theory 110 points] A computer system, A, generates packets destined to another Computer System B thru a router R. We are interested at the traffic analysis at the router R. The router receives packets as input, processes them and sends packets to Computer B. Packets are generated by Computer A at a rate of 85 packets/sec following a Poisson process...
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