SEAMCAT - Spectrum Engineering Advanced Monte Carlo Analysis Tool

Introduction to SEAMCAT 

SEAMCAT is a software tool, based on the Monte-Carlo simulation method, which is developed within the frame of the European Conference of Postal and Telecommunication administrations (CEPT).

The tool allows statistical modelling of different radio interference scenarios for performing coexistence studies between wireless systems operating in overlapping or adjacent frequency bands.

The software is maintained by the European Communications Office (ECO) and is distributed free of charge.



Current official version (5.5.0, released on 24 November 2023) 5.5.0 Release note
Current test version     (5.5.1 loctime 1)
SEAMCAT models for plugin development


Installation and system requirements

SEAMCAT is a JAVA application with extension ".jar". Therefore, it is necessary to install the JAVA Runtime Environment (JRE) in your computer to be able to run it. 

In order to ensure an optimal performance on 64-bit computer architectures, please install the 64-bit version of JRE. It is recommendend to use Java version 8 to 11 as it is proven as most stable for SEAMCAT. 

You can verify your JAVA version here: https://www.java.com/verify/ 

Please note that Oracle JDK 8 is undergoing the "End of Public Updates" process, which means there are no longer free updates for commercial use after January 2019. However, since Java SE 9, Oracle is also providing Oracle's OpenJDK builds which are free for commercial use, and there are free OpenJDK builds from other providers like AdoptOpenJDK, Azul, IBM, Red Hat, Linux distros et al. For more information about this topic see here.


Plugin Library

Library of SEAMCAT plugins



Archive of previous official versions

Archive of previous test versions



The most recent documentation is the online SEAMCAT handbook

A pdf version of the SEAMCAT Handbook was published in April 2016 as ECC Report 252 (51 Mbytes)

SEAMCAT (from version 5.4.3A4 onwards) supports digital terrain model (SRTM-1 and SRTM-3 DEM) in simulation and tools (terrain profile tool and test propagation model). Explanation and user documentation explaining how to use these features and where to download DEM Data can be found in document DEM terrain use in SEAMCAT.

You can find some practical tips here.


SEAMCAT Workshops

The ECO organises SEAMCAT workshops in a regular basis. You will find the latest presentations available in the documentation area of the STG page. Keep an eye out for upcoming SEAMCAT workshops here.


SEAMCAT source code

It is possible to request access to the SEAMCAT source code. More information is available at the SEAMCAT source code page.


SEAMCAT stakeholders

The SEAMCAT project is an ongoing WGSE (Working Group Spectrum Engineering) activity. The daily maintenance of the project and the SEAMCAT software is entrusted to the ECO. STG (SEAMCAT Technical Group) acts as the supervising committee and source of technical expertise.


SEAMCAT community

There is one e-mail address to report bugs and enhancements and two e-mail reflectors open to administrations, industry and academia. They have different purposes:

You can report bugs or suggest enhancements by sending an e-mail to [email protected] and attaching the description of the issue using the STG template

This e-mail reflector allows to disseminate useful information within the group of SEAMCAT users (i.e. user support messages, usage tips, information on updates and questions/answers from members of the SEAMCAT community, etc..). This e-mail is NOT intended to report bugs (see above).You need to register in order to be able to send an e-mail to the reflector:

  • Public STG E-mail reflector

This e-mail reflector is intended for exchanges between active STG members, who contribute to the enhancement of SEAMCAT. When you become a member of the STG Group you are automatically added to the e-mail reflector. You can find more information in the STG page.


Updated: 22 January 2024, 15:18