PIM Calculator

Need to quickly check whether multiple carriers or frequency bands may be mixing and causing PIM interference?

Use this tool to calculate the frequencies and bandwidths of the passive intermodulation products IM3, IM5, and IM7. Triple beat PIM products - the result of three carriers mixing - is also calculated if a third carrier frequency is entered.

Any PIM products that fall within your receive band will be flagged.

Results are graphed and also presented in a table.

How to use the ISCO PIM Calculator

This PIM Calculator is provided as a tool for informational purposes only. ISCO makes no representations or warranties of any kind related to this tool, whether express or implied, and specifically disclaims and excludes any representation or warranty of merchantability, quality, content, completeness, suitability, adequacy, accuracy, noninfringement or fitness for a particular purpose and any representation arising by usage of trade, course of dealing or course of performance. It is provided "as is" and should be combined with the knowledge of personnel experienced in RF networks.  ISCO representatives are available to help users understand the PIM Calculator. ISCO is not obligated to upgrade or update specifications or notify any users that changes have been made to this tool. The user of ISCO’s PIM Calculator assumes all risks and responsibilities associated with such use, and ISCO hereby disclaims any and all liability for damages of any kind resulting from such use.

How to Use the PIM Calculator

It's easy to get started: just enter two transmit frequencies (F1, F2). The frequencies of the PIM products will be calculated and displayed. F1 and F2 are the minimum inputs needed to use the ISCO PIM Calculator.

But there's more. To check for triple beat PIM, enter a third frequency (F3).

Higher order PIM products like IM7 can have a wide bandwidth. Enter the bandwidths of F1 and F2 to calculate the PIM bandwidths.

Finally, to check if any PIM products land in the uplink, enter your receive band frequency and bandwidth.

Do you have a PIM issue?