Jack T. Collins and Francis K. Steele

Abstract: The sole purpose of this publication is to provide the public with a list of existing computer aids for the evaluation of radio systems which operate in any part of the radio spectrum. Consequently, neither the Department of Commerce (DoC), nor the National Telecommunications and Information Administration (NTIA) approves of, recommends, or endorses any particular proprietary product or service mentioned in this publication. Accordingly, no reference should be made to NTIA, DOC, or this publication that (1) implies or states the contrary, or (2) has as its purpose the recommendation, directly or indirectly, for the purchase of any particular proprietary product or service listed in this publication.

Keywords: atmosphere; computer programs; databases; desired signal; digital communications; precipitation; propagation prediction; radar power; undesired signals; transmission loss

Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

For questions or information on this or any other NTIA scientific publication, contact the ITS Publications Office at ITSinfo@ntia.gov or 303-497-3572.

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