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What are the reasons that low frequency parameters cannot be Measured in microwaves?
Wiki User
∙ 11y ago
(a) voltage and current readings vary with position along the
transmission line,
(b) voltage and current are difficult to define in non-TEM transmission
lines.
Wiki User
∙ 11y ago
Wiki User
∙ 11y ago;m;m;m;mjk pmkjojoiijoimjoi joopkpppkpokopkp,;/;,;,
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Why high frequency is used in communication than low frequency?
High frequency is used because of the the size of antennas used to transmit and receive the communications signal. The higher the frequency the smaller the antenna.
Can you list two reasons that modulation is used for communications transmissions?
To send multiple messages by changing the carrier signal. To be able to use smaller antennas higher frequency means smaller antenna
Why are audio frequencies difficult to radiate?
In order to radiate and intercept energy efficiently, the physical size of the transmitting and receiving antennas must be an appreciable portion of the E & M wavelength.An electromagnetic wave at an audio-frequency ... let's say 1 KHz ... has a wavelength of( c / 1,000 ) = ( 3 x 108 / 103 ) = 3 x 105 = 300 kilometers = about 186.4 milesEven at the nominal limit of the frequency range of hearing ... say 20 KHz ... the wavelength is( 3 x 108 / 2 x 104 ) = 15 kilometers = 9.3 miles.In order to have a fighting chance of successful radio communication at audio frequencies, over reasonable distances using reasonable transmit-power, the parties at each end of the link need antennas measured in miles.There are plenty of other great reasons that we don't use radio at the physical baseband frequencies; but even of there were no others, this reason alone is a pretty potent show-stopper.
What 3 reasons are the reasons water bottles are made out of plastic?
Plastic is waterproof, light in weight and it isn't delicate.
Two reasons why people use simple machines?
The two reasons why people use simple machines are because they make things easier to pull and lift.
What is the Reasons of using intermediate frequency?
what is the reasion of using intermediate frequency in television system
Why are childrens height and weight measured?
Measuring children's height and weight helps track their growth and development over time. It can help identify any potential health concerns, monitor nutritional status, and ensure children are growing at a healthy rate for their age. These measurements are essential in pediatric healthcare to assess overall well-being and provide appropriate interventions if needed.
Reasons for modulation?
If voice was to be transmitted at its basic frequency 20-20kc. it will take much time. But by transmitting a very hi frequency media the signal can be there presently. By modulating this frequency by voice and removing the media it can be there instantly.
What is one of the major reasons that psychologists use operational definitions?
So that the effects can be measured !
Why high frequency is used in communication than low frequency?
High frequency is used because of the the size of antennas used to transmit and receive the communications signal. The higher the frequency the smaller the antenna.
Explain the reasons for defining structures for a project?
It is important to define structures for a project so that it is done in a timely manner and is cost effective and complete. These are all reasons to define parameters.
Is there a beginning to all time?
God There are theoretical reasons that time may not be measured before 10-43 seconds, however this has yet to be proven
What are the critical parts in a transmitter?
The frequency control portions are most criticall. crystals were used to stabilize frequency and avoid problems with interference or ( harmonics) as it was called. Ham transmitters can be banned if they are off-frequency and produce audible harmonics which can interfere with TV reception. So- for legal reasons, the fine-tuning and Frequency control elements are critical, so are voice or code input jacks, amplifiers. and so on.
Why won't my 1986 jeep wagoneer start?
There is not enough information to answer fully but the main reasons an engine will not start are, fuel/air mixture, electrics and timing. Check that these are all within the parameters set out by the manufacturer
How is Shaquille O'Neal?
About 7 ft. He is listed at 7'1" in the NBA, but in the NBA draft combines where he was measured without shoes, he was measured at only 7'0". It is common for the NBA to list the heights of players of players with shoes, or to boost them an inch for marketing reasons.
How tall Shaquille O'Neal?
About 7 ft. He is listed at 7'1" in the NBA, but in the NBA draft combines where he was measured without shoes, he was measured at only 7'0". It is common for the NBA to list the heights of players of players with shoes, or to boost them an inch for marketing reasons.
Is Shaquille O'Neal tall?
About 7 ft. He is listed at 7'1" in the NBA, but in the NBA draft combines where he was measured without shoes, he was measured at only 7'0". It is common for the NBA to list the heights of players of players with shoes, or to boost them an inch for marketing reasons.
