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Intermodulation Study Software - Intermodulation Calculator

Intermodulation Calculator | Intermod Study Software: Midian Elect.


Midian's INTERMOD-CALCULATOR predicts the possible occurrence of intermodulation products that may cause receiver interference at the radio repeater site. It does this by testing for odd and/or even order products caused by the mixing of multiple transmitters at a given site in a non-linear device. These may take the form of 2A-B, 3A-2B, etc., or A+B+C-D-E, etc. A non-modulated signal may not produce a direct hit. Therefore, a deviation window is provided to take into account modulated signals that are multiplied/mixed and sweep across the channel. Click here for additional information and photos on the InterMod Calculator

Other features of our Intermodulation Calculator include the support of frequencies from 1 MHz to 999 GHz, orders from 2nd to 33rd, a wide range of channel spacing (including 6.25 KHz) and generating of CSV reports that can be imported into Microsoft Excel. The software also allows for Latitude/Longitude coordinates for site location for internet based map lookups (i.e. Google Maps).


  • Associate TX & RX frequency pairs with a channel name
  • Color-coded, clear & concise reporting
  • Group transmit/receive frequencies by site
  • In-band/out-of-band calculations supported
  • Odd order only or odd & even order calculations supported
  • Perform intermodulation studies by site and/or multiple sites
  • Programmable transmit deviation window
  • Receiver image frequency supported
  • Select colors for report generation & highlighting


This product can be used with a notebook PC to solve intermodulation interference problems at radio repeater sites, cellular sites, military installations, airport control towers, etc.


This Intermodulation Calculator / Intermodulation Study Software is software-based. It can be installed on any PC using Windows 2000 (SP4 or higher), Windows XP (SP3 or higher), Windows Vista and Windows 7.