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- At a certain time, the maximum usable frequency (MUF) for transmission at an angle of incidence of 75° is 20MHz. A) What is the critical frequency in MHz? (Use two decimal places for the final answer) B) What will be the optimum working frequency (OWF) in MHz? (Use two decimal places for the final answer)The maximum deviation of an FM channel allowed is 15.0 kHz at frequencies up to 3.6001 kHz. Using Carson’s rule, determine the bandwidth of the FM channel. Round the final answer to two decimal places. kHzPls don't just directly copy the answer from other post.(i) Sketch the spectrum at point (a) and (b) of the receiver. (Label all magnitudes and frequencies ofthe axes.)(ii) What must the bandwidth of the channel be required for the system?(iii) Design a transmitter to multiplex the signal m1(t) and m2(t) for the receiver. (Show all the details.)
- A rectangular waveguide measures 1.016 x 2.286 cm internally with a signal propagated in it. Complete the table below showing all mathematical expressions used in arriving at the answer. Mode Cut-off Wavelength in cm Cut-off frequency in Ghz 1 TE10 2 TE20 3 TE01 4 TE11 5 TM11 Explain the reasons for the cut-off wavelength and its importance to waveguide propagation.How can you convert the absorption spectrum into Transmittance peaks? Please shortly answer at your own words. Answer should be to the point (specific 4-5 lines).PLEASE SHOW ALL WORK 2. Following plot is the radiation pattern of an antenna. Determine: a) Antenna gain in dBi and dBd b) Front to back ratio in dB. (Show calculation steps by marking on the diagram)
- What is the height of a communications antenna required to cover a distance of 100km if it operates on 6GHz frequency? a. 588 m b. 125 m c. 250 m d. 100 m Plz do ASAP.....!A quarter wavelength line is being used to match a load impedance of 80 Ω to a generator with an output impedance of 80 Ω. What is the required characteristic impedance of the quarter wave line? ..The directivity of an antenna is 12 dB. What will be the beam solid angle of the antenna? Express the answer in steradian.
- 19. Overcrowding in the frequency spectrum is prevalent in which area of the spectrum?a. EHFb. UHFc. SHFd. VHF20. What materials is used as the ground plane of the microstrip?a. Teflonb. GaAsc. Fiberglassd. Copper21. Which of the following is not a microwave tube?a. Klystronb. TWTc. Magnetrond. Cathode- Ray tube Note: Explanation is not needed just provide the correct answers for each number.Anticipating single band AM, what percentage of the total power is saved by suppressing the carrier and one sideband while transmitting the other sideband only for m=0.75?What circuit Q is required to give a bandwidth of 56 MHz at a frequency of 44 GHz? Round the final answer to three decimal places.