Ericsson Gmbh

David Bing

Gerald E Roberts

Johannes J Vandegraaf

John R Lane

John R Poirier

William P Overstreet

Fulvio Bonecchi

Robert B Sanders

Jeff Johnson

An architecture and frequency plan for a wideband UHF radio minimizing spurious output signal emissions uses a low value for the ratio of the maximum RF operating frequency to the (first) intermediate frequency (IF) in the radio, as part of its internal superheterodyne conversion process. A minimum value or a value sufficiently close to the minimum value of this ratio allows the radio design to be optimized to reduce spurious outputs and the effects of inherently present major harmonics. These and other advantages and features permit a radio design to be realized in a cost effective manner for an array of stringent performance specifications including low spurious output emissions.

Architecture and frequency plan for a UHF portable radio

Growing community of inventors

Forest, VA, United States of America

David Bing