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Would the linear combination of a low frequency intelligence signal and a high frequency carrier signal be effective as a radio transmission?
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What is the effect of frequency change on transmission losses?
Higher the frequency, higher the losses.
Why do you not use frequency modulation in long range transmission?
Frequency modulation is not used for long distance transmission because it has the problem of limited band width.
Why FM transmission is limited to line of sight?
the high frequency, it is in VHF band.
Which type of modulation is used in TV transmission?
In television system for video transmission AM is used and for audio transmission FM is used....
What is the function of the oscillator in a cw transmitter?
It is the engine of the transmission system. It determines the frequency of where the CW transmission happens. CW transmission is the most efficient form of transmission. The majoity of power in this system is used for actual transmission and not for modulating a signal.
Why the linear combination of a low frequency intelligence signal and a high frequency carrier signal is not effective as a radio transmission?
to shift the frequency of information signal ,at the frequency domain to a higher frequency ...so the information can be transmitted to the receiver.
In AM transmission the frequency which is not transmitted is?
audio frequency
What are the parameters of high frequency carrier that may be varied by a lower frequency intelligence?
Following are the 3 parameter by which high Frequency carrier can be varied by low frequency intelligence signal 1) Amplitude 2) Phase 3) Frequency
What extracts the intelligence from a high frequency carrier in FM receivers?
One method to extract the intelligence (signal) from a high frequency carrier in FM receivers is with a phase locked loop.
What is the effect of frequency change on transmission losses?
Higher the frequency, higher the losses.
Does gravitational field effect the satellite frequency?
No. Gravity effects its' orbit but not its' transmission frequency.
Why do you not use frequency modulation in long range transmission?
Frequency modulation is not used for long distance transmission because it has the problem of limited band width.
Webex bandwidth requirements?
Transmission bandwidth depends on modulating signal frequency and carrier frequency
Is ultrasonic frequency effective for repelling mosquitoes?
Ultrasonic frequency has been shown to be effective for repelling female mosquitoes. It reportedly works within one meter of the insects.
How is the intelligence signal modulated in the carrier?
If the intelligence signal striking a microphone was doubled in frequency from 1 kHz to 2 kHz with constant amplitude, (fc) would change from 1 kHz to 2 kHz. Because the intelligence amplitude was not changed, however, the amount of frequency deviation above and below fc will remain the same. On the other hand, if the 1 kHz intelligence frequency were kept the same but its amplitude were doubled, the rate of deviation above and below fc would remain at 1 kHz, but the amount of frequency deviation would double.
At microwave frequency why should the transmission line may considered to be made of unit length?
at microwave frequency why should the transmission line may considered to be made of unit length?
What affects frequency?
Velocity (relative and absolute), medium of transmission, ...
