The local FM radio station broadcasts at 97.1 MHz. Suppose they use a 75-Ω transmission line...
The local FM radio station broadcasts at 97.1 MHz. Suppose they use a 75-Ω transmission line to feed the broadcast antenna. If the antenna impedance is 50 Ω, (a) find the length and characteristic impedance for a quarter-wave transformer to match the antenna to the line. Assume the phase velocity is the speed of light. (b) What fraction of the power is delivered to the antenna with the original line relative to the power delivered to it with the matched line?
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The local FM radio station broadcasts at 97.1 MHz. Suppose they
use a 75-Ω transmission line...
a local FM radio station broadcasts at a frequency of 107.0 MHz. what is the wavelength,...
a local FM radio station broadcasts at a frequency of 107.0 MHz. what is the wavelength, in meters, of the electromagnetic wave produced
FM radio station KRTH in Los Angeles broadcasts on an assigned frequency of 101 MHz with...
FM radio station KRTH in Los Angeles broadcasts on an assigned frequency of 101 MHz with a power of 50,000 W. (a) What is the wavelength of the radio waves produced by this station? (b) Estimate the average intensity of the wave at a distance of 35.3 km from the radio transmitting antenna. Assume for the purpose of this estimate that the antenna radiates equally in all directions, so that the intensity is constant over a hemisphere centered on the...
1. A local FM radio station broadcasts at a frequency of 93.4 MHz. Calculate the wavelength...
1. A local FM radio station broadcasts at a frequency of 93.4 MHz. Calculate the wavelength at which it is broadcasting. Wavelength = meter (1 MHz = 106 s -1) 2. A local AM radio station broadcasts at a frequency of 623 kHz. Calculate the wavelength at which it is broadcasting. Wavelength = m (1 kHz = 10 3 sec -1) 6.1
A local FM radio station broadcasts at a frequency of 96.4 MHz. Calculate the energy of...
A local FM radio station broadcasts at a frequency of 96.4 MHz. Calculate the energy of the frequency at which it is broadcasting. Energy = _____ kJ/photon (1 MHz = 106 sec -1)
A local FM radio station broadcasts at a frequency of 106.0 MHz. Calculate the energy of...
A local FM radio station broadcasts at a frequency of 106.0 MHz. Calculate the energy of the frequency at which it is broadcasting. Energy = ___ kJ/photon (1 MHz = 106 sec -1)
6.1m3. A local FM radio station broadcasts at a frequency of 90.3 MHz. Calculate the wavelength...
6.1m3. A local FM radio station broadcasts at a frequency of 90.3 MHz. Calculate the wavelength at which it is broadcasting. Wavelength = meter (1 MHz = 106 s -1)
A local FM radio station broadcasts at a frequency of 105.2 MHz. Calculate the energy of...
A local FM radio station broadcasts at a frequency of 105.2 MHz. Calculate the energy of the frequency at which it is broadcasting. Energy = kJ/photon (1 MHz = 10 sec-1) Calculate the energy for the transition of an electron from the n=7 level to the n=4 level of a hydrogen atom. AE = Joules Is this an Absorption (A) or an Emission (E) process 2
A local FM radio station broadcasts at an energy of 6.31x10-29 kJ/photon. Calculate the frequency at...
A local FM radio station broadcasts at an energy of 6.31x10-29 kJ/photon. Calculate the frequency at which it is broadcasting. Frequency = MHz (1 MHz = 10 sec ) A local FM radio station broadcasts at a frequency of 96.7 MHz. Calculate the energy of the frequency at which it is broadcasting. Energy = kJ/photon (1 MHz = 10 sec !) Ultraviolet radiation falls in the wavelength region of 1.00×10-* to 1.00x10-7 meters. What is the energy of ultraviolet radiation...
7) Two half-wave dipole antennas, each with an impedance of 75 Ω, are connected in parallel throu...
7) Two half-wave dipole antennas, each with an impedance of 75 Ω, are connected in parallel through a pair of 0.5-A transmission lines, and the combination is connected to a feed 0.25-2 transmission line, as shown in the Figure. 75Ω (Antenna) (a) What is the impedance of the 0.25-2 feed transmission line such that Zin will be matched to a 5042 TL? (b) If the result of (a) is connected to a 50 Ω TL that is, in turn, connected...
Public Radio station KXPR-FM in Sacramento broadcasts at 88.9 MHz. The radio waves pass between two...
Public Radio station KXPR-FM in Sacramento broadcasts at 88.9 MHz. The radio waves pass between two tall skyscrapers that are 15.0 m apart along their closest walls. Review Constants At what horizontal angles, relative to the original direction of the waves, will a distant antenna not receive any signal from this station? Enter your answers in ascending order separated by commas. Enter only positive angles. Express your answers in dergees. A = 13.0,26.7,42.4,64.1 Submit Previous Answers Correct Part B If...
A local FM radio station broadcasts at a frequency of 105.2 MHz. Calculate the energy of the frequency at which it is broadcasting. Energy = kJ/photon (1 MHz = 10 sec-1) Calculate the energy for the transition of an electron from the n=7 level to the n=4 level of a hydrogen atom. AE = Joules Is this an Absorption (A) or an Emission (E) process 2
A local FM radio station broadcasts at an energy of 6.31x10-29 kJ/photon. Calculate the frequency at which it is broadcasting. Frequency = MHz (1 MHz = 10 sec ) A local FM radio station broadcasts at a frequency of 96.7 MHz. Calculate the energy of the frequency at which it is broadcasting. Energy = kJ/photon (1 MHz = 10 sec !) Ultraviolet radiation falls in the wavelength region of 1.00×10-* to 1.00x10-7 meters. What is the energy of ultraviolet radiation...
7) Two half-wave dipole antennas, each with an impedance of 75 Ω, are connected in parallel through a pair of 0.5-A transmission lines, and the combination is connected to a feed 0.25-2 transmission line, as shown in the Figure. 75Ω (Antenna) (a) What is the impedance of the 0.25-2 feed transmission line such that Zin will be matched to a 5042 TL? (b) If the result of (a) is connected to a 50 Ω TL that is, in turn, connected...
Public Radio station KXPR-FM in Sacramento broadcasts at 88.9 MHz. The radio waves pass between two tall skyscrapers that are 15.0 m apart along their closest walls. Review Constants At what horizontal angles, relative to the original direction of the waves, will a distant antenna not receive any signal from this station? Enter your answers in ascending order separated by commas. Enter only positive angles. Express your answers in dergees. A = 13.0,26.7,42.4,64.1 Submit Previous Answers Correct Part B If...
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