Given a receive power of 10E-6 mW and a noise power in decibels of [N]= -123.5dBm, determine the decibel SNR value referenced to 1mW.
Please show work
a. [SNR] = -50 dBm – 123.5 dBm = -173.5 dBm
b. [SNR] = 10E-6mW – (-123.5 dBm) = 124 dBm
c. [SNR] = -50 dBm – (-123.5 dBm) = 73.5 dBm
d. [SNR] = 50 dBm – (-123.5 dBm) = +173.5 dBm
Given a receive power of 10E-6 mW and a noise power in decibels of [N]= -123.5dBm,...
Question 1 The noise floor, also known as additive white Gaussian noise (AWGN), is a continuous noise level that appears over a wide spectrum when viewed in the frequency domain. True False 10 points Question 2 When considering the impact of impulse noise, we find that it is more devastating to a digital communications link, than an analog one. Therefore, error control methods should be used on all digital links. True False 10 points Question 3 When two transmitters operate...
Low SNR is preferred in a communications link, since it means that the noise will also be low. True False 10 points QUESTION 5 Determine the decibel values of thermal noise power (N) and thermal noise power density (No)given the following: T=292 degrees Kelvin, B = 40MHz. (note: brackets “[ ]” represent decibel values) a. [N] = +128 dBW, [No]= +204dBW b. [N] = -128 dBW, [No] = -204 dBW c. [N] = -128 dBm, [No]= -204 dBm d....
1. Suppose log10(x) = 25. Calculate log2 (x) by calculating x and then calculating log2 (x). Be sure to show the instructions you gave to R, as well as the value of x and the final result. 2. Find log2 (x), as in (1) without calculating x, by multiplying by something. 3. Suppose log2 (x) = 25. Calculate log10(x) for y = 25 by calculating x and then calculating log10(x). Be sure to show the instructions you gave to R,...
2. 12 pts] An FM system has a modulation index β-6 aid the input signal-to-noise ratio SNR 25dB. The message is a periodic square wave given in the figure below pulse width -0.2m 2 0 0 t (ms) a) What is the output SNR.? b) What is the proper value of the message bandwidth? [Justify your answer. c) What is the corresponding FM transmission bandwidth? d) If the modulation index is kept at β 6, what should be the increase...
Poly-Poly + a[i] * power 6. (15%) Consider the nested loops shown below, where N is assumed to be a power of 2. i.e., N-2 for some positive integer k. i=N; while (i>-1){ while (j =N){ j-2 *j; i=i/2. a) Determine the number of outer iterations (associated with the outer while loop) to be executed? Show your work. b) For each outer iteration (for each value of i), determine the number of iterations of the inner while loop to be...
Given sample statistics: mean = 37.8; std deviation = 6; N = 144 Test the following hypotheses at a=.05 Ho: u = 39 Ha: u ne 39 You must compute the standard error and t-statistic, look up appropriate t critical value, make decision and specify possible type of error, and compute the appropriate confidence interval. Please upload into a Microsoft Word file and show work for answers.
Please show detailed work and write clearly. Thank you.
6. A four-pole squirrel-cage motor has the following characteristics: Power input at a rated load is 5200 W with a power factor of 0.70. Rated speed is 1150 rpm. Resistance of each stator windings (there are three) is Rs-: 0.195 Ω. . The motor is supplied by a three-phase source with a line-to-line voltage of 460 V and a frequency of 50 Hz. The windings of the motor have a Y-connection....
Submission should follow the ET190 homework format. Ensure you show all work completety to receive full credit. Make sure all problems are done in using labels and appropriate units or subscripts. Box your final answer. 1. There are 5 capacitors with the value of 1500 pF. a. What is the total capacitance when they are all in series? -10 3e 1500 1500 1500 b. What is the total capacitance when they are all in parallel? Cr cie C Cs de...
Name: UU Please remember to show your work and write clearly. Getting a wrong answer does not mean you will lose all of the points on the question, if your procedures are correct. Also, please clearly indicate your final answer to each question. There are 6 questions for 15 points each (and ten free points). 1. A major company would like to assess the impact of using a professional trainer to conduct a confidence-building workshop with its salespeople. A sample...
Determine the period number of the ufk-4 cos(K+TT/2) discrete time signal! Select one: O A. 34 O D. Non periodic O E. 34/3 A coil (L 5 mH) is parallel connected to two serially connected resistors (6 kΩ and 4 k2). Calculate the time constant of the above two-pole! Select one: Ο Α.0.5s OC. 5 s Ο D. 0.5 με Ο Ε.0.5 Ms Consider the following sequential network: Z2 Di Ct ㄍ洼 S2 Q2 CLK Choose which function does this...