Regulations require that licensed radio stations have limits on their broadcast power so as to avoid...
Regulations require that licensed radio stations have limits on their broadcast power so as to avoid interference with signals from distant stations. You are in charge of checking compliance with the law. At a distance of 35 km from a radio station that broadcasts from a single vertical electric dipole antenna at a frequency of 1090 kHz, the intensity of the electromagnetic wave is 2 x 10-13 W/m2. What is the total power radiated by the station?
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Regulations require that licensed radio stations have limits on
their broadcast power so as to avoid...
A radio station broadcasts with a power of 50,000 watts. Estimate the average intensity of the...
A radio station broadcasts with a power of 50,000 watts. Estimate the average intensity of the wave at a distance of 50 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 antenna.
FM radio stations use radio waves with frequencies from 88.0 to 108 MHz to broadcast their...
FM radio stations use radio waves with frequencies from 88.0 to
108 MHz to broadcast their signals. Assuming that the inductance in
Figure 24.4 has a value of 4.00 × 10-7 H, determine the
range of capacitance values that are needed so the antenna can pick
up all the radio waves broadcasted by FM stations.
Antenna wire Direction of wave travel To audio video amplifier circuits Figure 24.4
Three radio stations broadcast at three different carrier frequencies: TIL Ulaucasts at three different carrier frequencies:...
Three radio stations broadcast at three different carrier
frequencies:
TIL Ulaucasts at three different carrier frequencies: 700 kHz, 1000 kHz, and 1400 Hz The antenna at the radio receiver front-end receives the voltage signals from all three stations, so the input to the radio receiver (tuner) will be the sum of these signals. You are asked to design a parallel resonant RLC circuit with a quality factor of 15 to be used as a tuner to receive only the broadcast...
A radio antenna broadcasts a 1.0 MHz radio wave with 25 kW power. Assume the radiation...
A radio antenna broadcasts a 1.0 MHz radio wave with 25 kW power. Assume the radiation is emitted uniformly in all directions. 1) what is the wave's intensity 30 km from the antenna 2) what is the electric field amplitude at this distance?
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...
The FM radio station KAMB broadcasts from an antenna atop a 170 meter tall radio tower at a frequency of 90 MHz with a total radiated power of 40 kilowatts. Neighbors have complained about problems th...
The FM radio station KAMB broadcasts from an antenna atop a 170
meter tall radio tower at a frequency of 90 MHz with a total
radiated power of 40 kilowatts. Neighbors have complained about
problems they attribute to excessive radiation from the tower, but
the city engineer who measured the radiation level near the base of
the tower found it to be well below the accepted standard. You have
been hired by the HOA to assess the engineer's report. You...
For your backpacking excursions, you have purchased a radio capable of detecting a signal as weak...
For your backpacking excursions, you have purchased a radio capable of detecting a signal as weak as 1.00 x 10-14 w/m2. This radio has a 2300 turn coil antenna that has a radius of 2.00 cm wound on an iron core that increases the magnetic field by a factor of 200. The broadcast frequency of the radio station is 1500 KHz (a) What is the peak magnetic field strength of an electromagnetic wave of this minimum intensity? (b) What is...
3. A radio station sends a sinusoidal wave with average power of 50kW. Assume that the...
3. A radio station sends a sinusoidal wave with average power of 50kW. Assume that the transmitter sends the signal with the same value to all direction. Calculate the wave intensity, electric field amplitude, and magnetic field that is detected by a satellite at 100 km away from the antenna.
A radio antenna broadcasts a 1.0 MHz radio wave with 27 kW of power. Assume that...
A radio antenna broadcasts a 1.0 MHz radio wave with 27 kW of power. Assume that the radiation is omitted uniformly in all directions. (60 - 8.85 x 10-12 c/Nm)c- 3.00 x 10 m/s) Part A What is the wave's intensity 33 km from the antenna? Express your answer in watts per meter squared. 190 AED ? I- W/m Submit Request Answer Part B What is the electric field amplitude at this distance? Express your answer in volts per meter....
FM radio stations use radio waves with frequencies from 88.0 to
108 MHz to broadcast their signals. Assuming that the inductance in
Figure 24.4 has a value of 4.00 × 10-7 H, determine the
range of capacitance values that are needed so the antenna can pick
up all the radio waves broadcasted by FM stations.
Antenna wire Direction of wave travel To audio video amplifier circuits Figure 24.4
Three radio stations broadcast at three different carrier
frequencies:
TIL Ulaucasts at three different carrier frequencies: 700 kHz, 1000 kHz, and 1400 Hz The antenna at the radio receiver front-end receives the voltage signals from all three stations, so the input to the radio receiver (tuner) will be the sum of these signals. You are asked to design a parallel resonant RLC circuit with a quality factor of 15 to be used as a tuner to receive only the broadcast...
The FM radio station KAMB broadcasts from an antenna atop a 170
meter tall radio tower at a frequency of 90 MHz with a total
radiated power of 40 kilowatts. Neighbors have complained about
problems they attribute to excessive radiation from the tower, but
the city engineer who measured the radiation level near the base of
the tower found it to be well below the accepted standard. You have
been hired by the HOA to assess the engineer's report. You...
For your backpacking excursions, you have purchased a radio capable of detecting a signal as weak as 1.00 x 10-14 w/m2. This radio has a 2300 turn coil antenna that has a radius of 2.00 cm wound on an iron core that increases the magnetic field by a factor of 200. The broadcast frequency of the radio station is 1500 KHz (a) What is the peak magnetic field strength of an electromagnetic wave of this minimum intensity? (b) What is...
3. A radio station sends a sinusoidal wave with average power of 50kW. Assume that the transmitter sends the signal with the same value to all direction. Calculate the wave intensity, electric field amplitude, and magnetic field that is detected by a satellite at 100 km away from the antenna.
A radio antenna broadcasts a 1.0 MHz radio wave with 27 kW of power. Assume that the radiation is omitted uniformly in all directions. (60 - 8.85 x 10-12 c/Nm)c- 3.00 x 10 m/s) Part A What is the wave's intensity 33 km from the antenna? Express your answer in watts per meter squared. 190 AED ? I- W/m Submit Request Answer Part B What is the electric field amplitude at this distance? Express your answer in volts per meter....
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