Explore the generation of spurious frequencies in mixers
using this interactive Windows tool. There are two main views showing the frequency plan (RF, IF & LO) and the web plot (IF vs. RF, LO frequency products).
Mixers are required in nearly all RF systems to translate the high receive frequency to a low frequency for analog and digital signal processing. Unfortunately, there is no existing way to produce only one output frequency. A multitude of frequencies that are integer multiples of the input frequency and the local oscillator are produced. These spurious frequencies introduce distortion and make receivers susceptible to interference from undesired signals. The radio designer has to be aware of the existence and level of the spurious frequencies produced, select a suitable frequency plan, and design proper filters to meet system requirements. Mixer Spurious Explorer is a tool to investigate and simplify this part of the design process for up and down converters.
Licensing & Purchasing
This software is licensed as shareware. You are free to download it and use it without purchasing a license. Large text "Demo Mode" will appear on the graphs. The program is fully functional.
A license can be purchased for USD $24.90 through PayPal by clicking on the Buy Now button. Personal or company checks drawn on a U.S. bank are accepted. Please allow sufficient time for bank processing.
Frequency Planning View
This view shows the RF band, IF band, and computed LO frequency tuning range.
Spur Web View
This view shows the output frequency as a function of the input frequency to the mixer. The lines are specific spurs that the mixer generates and are color coded according to their amplitude levels.
Home of Mixer Spurious Explorer
Test & Measurement Software