When two or more radio frequency (RF) signal mix. The mixing can produce a summed, difference, or harmonic multiple frequency. The more wireless systems being used in an area, the higher the chance is that there will be IM trouble.
In a receiver, an unwanted signal sometimes interacts with the desired signal. The desired signal appears to be modulated by the undesired signal
Interference caused by mixing of signals from more than one transmitter. The mixing occurs when the signals are rectified by something that can act as a diode. Diode mixing is part of the process used to receive signals, but can also occur "accidentally" inside or outside of the receiver itself as the signal encounters a rusty metal joint or similar object. It is often referred to as "intermod".
A process whereby strong signals mix together in an active circuit to create undesired output frequencies that are not present at the input.
A phenomenon that occurs when two or more fundamental frequencies are present in an electronic circuit.
The distortion product of an amplifier, caused by the interaction of different signal products within the amplifier.
Intermodulation products are the result of two or more desired signals interacting with each other, due to non-linear effects within generation or transport equipment, to produce additional undesired frequencies which become interference for one or more service providers.
The interaction of signals at multiple frequencies in a non-linear device or environment, which generates frequencies that were not present in the original sources. Current.
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.
Mutual interference between signals spaced apart in frequency after non-linear amplification by a common amplifier. In satellite communication systems the phenomenon of intermodulation is usually only significant after the high power amplifier in an earth station or a satellite transponder. It is controlled by means of the IBO/OBO of the amplifier.
A form of interference that is generated from creation of two or more beats between carrier. Beat frequencies are given by fbeat-nf1 + mf2 where n and m are integers.
A fiber nonlinearity mechanism caused by the power dependant refractive index of glass. Causes signals to beat together and generate interfering components at different frequencies. Very similar to four wave mixing.
Also referred to as IM. The mixing of two or more signals, producing sums, differences, and harmonic multiples.
Beats and harmonics creating interference due to the mixing of more than one carrier in an amplifying device. Usually to non-linear.
Intermodulation or intermod is the result of two signals of different frequencies being mixed together, forming additional signals at frequencies that are not in general at harmonic frequencies (integer multiples) of either. The largest intermodulation products appear at f1 + f2 or f1 − f2 (second-order intermodulation), and less so at 2f1 − f2 or 2f2 − f1 (third order intermodulation).