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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.
What else can I help you with?
What is the expectation value of potential energy for a harmonic oscillator?
The expectation value of potential energy for a harmonic oscillator is equal to half of the oscillator's spring constant multiplied by the square of the oscillator's displacement from its equilibrium position.
What is the difference between colpitts and clapp oscillator?
The Clapp oscillator is a variation of the Colpitts oscillator that includes an additional capacitor in series with the inductor to improve frequency stability. This additional capacitor in the Clapp oscillator helps reduce the effect of the active device's parasitic capacitance, leading to better frequency stability compared to the Colpitts oscillator.
What is the expectation value of momentum for a harmonic oscillator?
The expectation value of momentum for a harmonic oscillator is zero.
If an object is an oscillator if it exhibits linear motion?
Not necessarily. An oscillator is a system that tends to repeat a specific behavior or motion over time. While linear motion can be a characteristic of an oscillator, other types of motion such as circular or rotational motion can also be exhibited by an oscillator.
Differetiate between LC oscillators and crystal controlled oscillators?
LC oscillators use inductors and capacitors to generate a frequency, while crystal controlled oscillators use a quartz crystal to establish the frequency. LC oscillators can be less stable and accurate compared to crystal controlled oscillators, which offer better precision and stability. Crystal controlled oscillators are commonly used in applications where precise frequency control is essential.
What is the difference between crystal and local oscillator?
oscillator frequency is different.crystal working piezo electric effect
What is a local oscillation?
A local oscillator is used in a superheterodyne radio circuit for example.The incoming radio frequency is mixed with an internal local oscillator circuit to generate a new intermediate frequency (IF) .The local oscillator usually runs at a frequency of 470kHz and is generated by an inductor and capacitor(LC oscillator)
What is local oscilator?
A local oscillator is used in a superheterodyne radio circuit for example.The incoming radio frequency is mixed with an internal local oscillator circuit to generate a new intermediate frequency (IF) .The local oscillator usually runs at a frequency of 470kHz and is generated by an inductor and capacitor(LC oscillator)
How to calculate image frequency?
f (image) = 2 * f (local oscillator) + fc ................. if f ( l.o ) > fc f (image) = 2* f (local oscillator) - fc
What radios have 365 pf tuning capacitors?
AM broadcast - 535~1605 kHz tuning range. The 365 pF cap is most likely in the aerial circuit, as most modern receivers would use a smaller-value section for local oscillator tuning. Alternately, a set may use the *same* value for aerial and local oscillator, with a padding capacitor to reduce the effective max value of the oscillator section.
Why does Jim use dc supply in oscillator circuits?
Jim use dc supply in oscillator circuits to and ac out put.
How can you use an scr as oscillator?
yes
What is the use of reflex klystron oscillator?
radar transmitters UHF TV transmission
Why you use capacitors with crystal oscillator?
To increase the efficiency. Comparison between crystal oscillator and ceramic resonator.
What is difference between self excited mixer and separately excited mixer?
location of local oscillatorself - oscillator is integral to mixerseparate - oscillator is a physically separate stage
What is the purpose of an oscillator crystal?
"A circuit within a computer that creates a series of pulses that pace the computer's electronic system. The oscillator clock synchronizes, paces and coordinates the operations of the computer's circuit." -- webopedia
Which oscillator circuit uses a tapped coil in the tuned circuit?
Several oscillator designs use a tapped coil in the tuned circuit. The most common is the Hartley oscillator.
