Frequency mixer

1. What does a frequency mixer do?
2. What is radio frequency mixer?
3. How do you mix two frequencies?
4. Can you mix frequencies together?

What does a frequency mixer do?

In the field of electronics, a frequency mixer is a nonlinear electrical circuit that can produce new frequencies from two applied signals. Also, a frequency mixer in its purest form takes two applied signals and creates new signals equal to the difference and sum of the originating frequencies.

What is radio frequency mixer?

An RF mixer is a three-port passive or active device that can modulate or demodulate a signal. The purpose is to change the frequency of an electromagnetic signal while (hopefully) preserving every other characteristic (such as phase and amplitude) of the initial signal.

How do you mix two frequencies?

One way to combine two frequencies is to simply add them. This is a linear operation, and will result in just the two frequencies in the combined signal. Depends on the system producing the frequencies. A frequency mixer can be used for hardwired or carrier current RF applications for example.

Can you mix frequencies together?

Heterodyning creates new frequencies by combining or mixing two frequencies. The result is the original frequencies, the difference of the two frequencies and the sum of the two frequencies. The two frequencies are combined in a nonlinear signal-processing device usually called a mixer.