THE FEUTEX TOOLKIT

Two-Tone Intermodulation Frequencies

Locate sum, difference and near-carrier third-order products.

Communications workspace● Runs in your browser

01 Your input

First toneHzSecond toneHz

02 Your result

View or copy raw result data

Result data

FormulaSecond-order: f1±f2; third-order: 2f1−f2 and 2f2−f1

Sources and model references

https://www.analog.com/media/en/training-seminars/tutorials/MT-012.pdf

Worked example

Inputs

First tone: 100000000 Hz
Second tone: 101000000 Hz

Expected results

Difference product: 1000000 Hz
Sum product: 201000000 Hz
2f1−f2 magnitude: 99000000 Hz
2f2−f1 magnitude: 102000000 Hz

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

Enter the labeled inputs in the indicated units.
Calculate and compare every output against the stated model assumptions.

Try this example

{
  "f1": 100000000,
  "f2": 101000000
}

Accuracy and scope

Product locations only; amplitudes depend on nonlinearity and filtering. Simplified analytical model; not a design recommendation or safety certification.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.