Local oscillator formula

1. How do you calculate local oscillator frequency?
2. What is local oscillator frequency?
3. What is RC and LC oscillator?
4. Which oscillator is used as a local oscillator?

How do you calculate local oscillator frequency?

The oscillator frequency is always greater than or smaller than the tuned incoming frequency by IF, i.e. The image frequency is calculated as: fsi = fs + 2 I.F. Image frequency is given by fsi = fs + 2 I.F.

What is local oscillator frequency?

In electronics, a local oscillator (LO) is an electronic oscillator used with a mixer to change the frequency of a signal. This frequency conversion process, also called heterodyning, produces the sum and difference frequencies from the frequency of the local oscillator and frequency of the input signal.

What is RC and LC oscillator?

The oscillation frequency is proportional to the inverse of the capacitance or resistance, whereas in an LC oscillator the frequency is proportional to inverse square root of the capacitance or inductance. So a much wider frequency range can be covered by a given variable capacitor in an RC oscillator.

Which oscillator is used as a local oscillator?

Detailed Solution. The Hartley oscillator is Suitable for oscillations in RF (Radio-Frequency) range, up to 30MHz.