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What is effect of frequency drift and phase drift of local oscillator in synchronous detection of dsb sc demodulation?
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Who invented high frequency oscillator?
Nikoli Tesla, Colpits or Hartley
What are you conclusions about the phase relationship between the driver and the oscillator below and above resonance?
For small frequency of forced oscillation , the phase angle between the forced oscillator and driver is nearly zero . As the driving frequency increases the phase angle increases and is equal is PI/2 ,when both the frequencies (frequency of force and frequency of system for oscillation) are equal. For very large frequency of driver , they are out of phase.
What is the use of local oscillator?
Trasmitting stations have their own transmitting frequency. No one can construct an amplifier which amplifies signals over a wide range. So every transmitting frequency has to be changed to one particular frequency. This is known as INTERMEDIATE frequency (IF) This is quite possible by getting beats. So a signal is to generated whose frequency is just more than the incoming frequency by IF This signal is named as local singnal which is generated by the LOCAL oscillator.
The product of the period and the frequency of a harmonic oscillator is always equal to?
tanong q rin yan....hehe
What is the usage of frequency?
It is a device or electronic circuit that changes the frequency of an oscillator according to the amplitude of modulating signal. For instance, if the modulation is linear, the modulator changes the frequency proportional to the amplitude of the modulating voltage.
What is frequency modulation detection?
as signals come in a means of extracting the original signal is required from the carrier frequency that process is called demodulation or modulation detection you called
What are the advantages and disadvantages of RC phase shift oscillator?
Advantages: it improves frequency stability. phase modulation n demodulation is easy as compared to frequency modulation.
Why do you use envelope detection in an M-ary Frequency Shift Keying noncoherent Modulator?
Envelope detection is used in an M-ary Frequency Shift Keying noncoherent modular because LOs are not required. Moreover, an estimate of 1dB of more power compared to the Frequency Shift Keying coherent demodulation.
What has the author Tom Graham Izatt written?
Tom Graham Izatt has written: 'Synchronous detection techniques for frequency response analysis'
Which oscillator produces 1MHz frequency?
crystal oscillator
What is the difference between coherent demodulation and non coherent demodulation?
In case of coherent demodulation carrier used for demodulation purpose is in phase and frequency synchronism with carrier used for modulation purpose. For non-coherent demodulation it is not in synchronism.
What is a frequency range of LC oscillator?
depends on the oscillator and its purpose
What is non coherent detection?
Non-coherent detection uses a product detector with a beat frequency oscillator to detect Morse code, CW transmissions or single-side band. It does not need carrier phase information at the receiver.
What are the advantages of oscillator?
clapp oscillator have frequency more stable and accurate than colpitts oscillator.
What is the frequency range of video frequency oscillator?
5MHz
Applications of wien bridge oscillator?
A Wein Bridge Oscillator is a oscillator which is used for the measurement of Audio Frequency.
What are the advantages of clap oscillator?
clapp oscillator have frequency more stable and accurate than colpitts oscillator.
