Intermodulation – Definition and Pronunciation
What is Intermodulation?
Intermodulation is the production, in a nonlinear element of a system, of frequencies corresponding to the sum and difference frequencies of the fundamentals and harmonics thereof that are transmitted through the element.
Examples of Intermodulation
In addition to free space losses (attenuation), there are a multitude of other factors that have to be taken into account. These include, but are not limited to, attenuation, distortion, dispersion, intermodulation, fade, multipath, dropouts, and external and adjacent satellite interference, and cross-polarization interference.
From “High Throughput Satellites (HTS) and KA/KU Spot Beam Technologies”.
A typical direct conversion transmitter uses the low-pass filters (LPFs) to eliminate out-of-band signal components from the baseband signal, but these components may re-appear along the way as a result of intermodulation distortion generated within the transmitter, for example, in the downstream power amplifier (PA), such as the satellite transponder.
From “DVB-S2 Modulation Extensions and Other Advances”.
Pronunciation of Intermodulation
