Welcome to the official download site for FreeUSP and FreeDDS . This software is being offered in open source by BP America Inc. in the hopes that it may foster education, understanding and collaboration amongst the world wide signal analysis community.

By downloading FreeUSP and/or FreeDDS you certify that you have read, understand and agree to comply with and be bound by the terms and conditions of the FreeUSP License.

If you do not agree with the terms and conditions do not download the software.







The following firms offer Support for FreeUSP.


The following organizations supply software or hold copyrights for software utilized in FreeUSP. You may require a license and/or written permission to use these products if you are planning a commercial venture based on FreeUSP.


The following organizations supply native Fortran compilers for Linux that work with this distribution. A Fortran to C converter is not sufficient to compile this offering.


We reserve the rights to make changes to this Site 'for any reason or no reason at all', including the temporary or permanent cessation of all or any portion of this Site. Such changes may be made without notice. You should visit this page from time to time to review any changes.

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