This report summarizes Phase II of a low-cost all-mode public safety radio project, with the goal of developing and demonstrating a radio which can operate in all bands and all modes relevant to public safety operations in the U.S.
This report summarizes the efforts from Phase II of the project, "A Low Cost All-Band All-Mode Radio for Public Safety,” under a grant from the U.S. Department of Justice’s National Institute of Justice. The goal of the project was to develop and demonstrate a radio which could operate in all bands and all modes relevant to public safety operations in the U.S. This document reports on the accomplishments of Phase II of the project, which incorporated key design choices and development efforts for the prototype radio. The report is organized into four sections: the first is an introduction to the project; section two, called Architecture I, provides an update on the development of the superheterodyne-based architecture proposed in the Phase I technical report; the third section, called Architecture II, presents the new architecture based on the Motorola direct conversion radio frequency integrated circuit (RFIC), including some discussion of the motivation for that architecture and a summary of the current design; and section four provides a brief overview of work done to evaluate the performance of the Motorola RFIC and to begin the process of design integration.