Intermodulation can occur between closely spaced transmitters, whereby the signal radiated from one transmitter generates IM products in the output stage of other nearby transmitters. The IM products are then transmitted along with the tuned carrier frequencies of the affected transmitters.

How does intermodulation distortion occur?

Intermodulation Distortion (IMD) occurs when two or more signals are used in a non-linear system. The spectrum at the output of the non-linear device will not only consist of the original signals but will also contain the sum and difference of the input signals along with their harmonics.

What is intermodulation mean in a transmitter?

The most important type of interaction is called intermodulation (IM), and it arises when signals are applied to "non-linear" circuits. ... Non-linear circuits are intrinsic to the design of wireless components and include the output stages of transmitters and the input stages of receivers.