What Is an IF, or "intermediate Frequency"?


Quick Answer

An IF, or intermediate frequency, is a transitional radio frequency situated between two other frequencies. It is often created by mixing two frequencies together via a signal enhancement process called heterodyning. An IF signal can be used to move information between frequency channels and to filter out unwanted signal information.

Continue Reading
What Is an IF, or "intermediate Frequency"?
Credit: blumblaum CC-BY-2.0

Full Answer

When a group of frequencies is packed too tightly together, a radio may pick up information from several frequencies and transmit sound from more than one station at a time. An IF conversion helps to filter out stray information from neighboring frequencies, allowing for more accurate tuning and improving the quality and strength of the signal.

Learn more about Electricity
Related Videos

Related Questions