0
Ground wave propagation becomes less suitable for higher frequencies because the signal tends to be absorbed by the ground more efficiently, resulting in shorter range and reduced coverage. At higher frequencies, signals are more likely to be affected by atmospheric conditions and obstacles, making ground wave propagation less reliable compared to other propagation methods like line-of-sight or ionospheric propagation.
Add your answer:
Earn +20 pts
Why is it possible to transmit TV signals by ground wave propagation?
Ground wave propagation for TV signals is possible because the signals use low frequencies that can travel along the Earth's surface, following its curvature. This allows the signals to reach receivers beyond the line of sight. Additionally, ground waves experience less attenuation compared to higher frequencies, making them suitable for long-distance transmission.
Does sound become more directional at higher frequencies?
Yes, sound tends to become more directional at higher frequencies due to their shorter wavelengths. This phenomenon is known as sound directivity, where higher frequency sounds have a more focused propagation pattern compared to lower frequency sounds.
Why is the up link frequency higher than the down link frequency in satellite communication?
The uplink frequency is higher than the downlink frequency in satellite communication because higher frequencies can carry more information and are less affected by interference and noise. This setup allows for efficient communication between ground stations and satellites, ensuring a reliable transmission of data.
Why the harmonics are multiples of fundamental frequency?
Harmonics are multiples of the fundamental frequency because they are integer multiples of the base frequency. This occurs because when a sound wave vibrates at a fundamental frequency, it also vibrates at higher frequencies that are multiples of the fundamental frequency due to the physics of wave propagation. The presence of harmonics gives each sound its unique timbre or tone quality.
How sound pitch and frequency are related?
Higher the frequency higher the pitch.
Why is it possible to transmit TV signals by ground wave propagation?
Ground wave propagation for TV signals is possible because the signals use low frequencies that can travel along the Earth's surface, following its curvature. This allows the signals to reach receivers beyond the line of sight. Additionally, ground waves experience less attenuation compared to higher frequencies, making them suitable for long-distance transmission.
What is the relation between frequency and distance of propagation?
As frequency increases, the distance of propagation typically decreases due to higher attenuation and greater susceptibility to obstacles and interference. Lower frequencies tend to travel farther because they can penetrate obstacles and travel longer distances without significant loss.
Does sound become more directional at higher frequencies?
Yes, sound tends to become more directional at higher frequencies due to their shorter wavelengths. This phenomenon is known as sound directivity, where higher frequency sounds have a more focused propagation pattern compared to lower frequency sounds.
What is mean by lumped element in electronics?
lumped" means that the dimension of you ckt element is much smaller than the wavelength of the signal passing through it. Therefore, you can treat your ckt element as a lumped unit (against the wavelength), and do not have to worry about wave propagation phenomenon "within" your ckt element. The opposite of "lumped element" is "distributed network." Typically, in low-frequency ckt/network, since the frequency is low, therefore, the wavelength is large (wavelength = propagation speed(usu. speed of light) / frequency ), so most elements can be treated as lumped. However, as frequency goes higher and higher, the wavelength becomes shorted and shorter, the wave propagation effect WITHIN the ckt element becomes more and more pronounced.
Why is the up link frequency higher than the down link frequency in satellite communication?
The uplink frequency is higher than the downlink frequency in satellite communication because higher frequencies can carry more information and are less affected by interference and noise. This setup allows for efficient communication between ground stations and satellites, ensuring a reliable transmission of data.
Why the harmonics are multiples of fundamental frequency?
Harmonics are multiples of the fundamental frequency because they are integer multiples of the base frequency. This occurs because when a sound wave vibrates at a fundamental frequency, it also vibrates at higher frequencies that are multiples of the fundamental frequency due to the physics of wave propagation. The presence of harmonics gives each sound its unique timbre or tone quality.
What changes the frequency of an xylophone?
The pitch. The higher the pitch, the higher the frequency.
How a sound pitch and frequency are related?
Higher the frequency higher the pitch.
How sound pitch and frequency are related?
Higher the frequency higher the pitch.
How do frequency change the pitch of a sound?
Pitch represents the perceived fundamental frequency of a sound. It is one of the three major auditory attributes of sounds along with loudness and timbre.
The higher the frequency of a sound wave the?
The higher the frequency of a sound wave, the higher the pitch of the sound perceived by the human ear.
What is the effect of frequency change on transmission losses?
Higher the frequency, higher the losses.
