The difference between intermodulation and intermodulation

In the RF field , There are a variety of measurement indicators for RF devices , There will also be cross fuzzy indicators , For example, the distinction between intermodulation and intermodulation has fuzzy boundaries in practical use , Because these two indicators refer to the signal interference at the output end caused by the interference of the input signal , The common point is that they all belong to nonlinear indexes , Intermodulation is usually the input of two signals during the test , One of them is a big signal , The other is a small signal , Look at the intermodulation state at the output , To judge the intermodulation performance of the signal , The intermodulation is that the two input signals are of the same amplitude and phase , Look at the mixing phenomenon at the output , Generally, the signals on both sides of the fundamental wave signal are strong , The signal of the adjacent fundamental wave is the third-order intermodulation , And because it's in band , So it cannot be filtered out , This can only be determined by the performance of the tube itself , But in some places, the index is also expressed by intermodulation . Another diplomatic adjustment point is to push up the predicted value of the signal . For reference only ！