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This paper describes a version of the dual-model feed horn that is considered particularly suitable for application in receive-only reflector antennas. Even though it was originally presented many years ago, to the authors' knowledge this type of biconical feed horn has not previously been analyzed or utilized. The present paper aims to describe the potential advantages of this feed horn for low-cost satellite earth stations, and then briefly to illustrate the design methodology that was adopted. Finally, it presents some of the experimental and theoretical results, which are in good agreement and demonstrate the performance achievable with this class of feeds. [ABSTRACT FROM AUTHOR]