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NCJ Number: NCJ 213895     Find in a Library
Title: Software Radio for School Safety
Author(s): Andrew Beard
Date Published: 2005
Page Count: 3
Sponsoring Agency: National Institute of Justice
US Department of Justice
Office of Justice Programs
United States of America
Grant Number: 2001-RD-CX-K003
Sale Source: National Institute of Justice/NCJRS
Box 6000
Rockville, MD 20849
United States of America
Document: PDF 
Type: Best Practice/State-of-the-Art Review
Language: English
Country: United States of America
Annotation: This report summarizes the development of a widely-turnable, handheld radio frequency (RF) system for use by school safety personnel.
Abstract: Using a handheld transceiver designed with multiple waveforms in the UHF and VHF bands and an easily configured user interface as a base, this project attempted to modify the device with two way radio waveforms, both analog and digital, and mobile-side implementations of cellular waveforms with bandwidths low enough to be processed on a low power handheld TDMA and AMPS processor. Testing showed that the transceiver did not operate in the cell bands, limiting the usefulness of the device for school personnel who had hoped to use it to incorporate both civilian and public safety communication methods. Processing hardware for the device included an iPAQ consumer handheld, which was based on a StrongARM 206 MHz RISC processor. Future handheld projects should focus on the rising bandwidth of modern cell waveforms and the problem of moving data at higher sample rates between the RF transceiver and a standard consumer handheld.
Main Term(s): Science and Technology
Index Term(s): Mobile radio equipment ; School security ; NIJ grant-related documents
   
  To cite this abstract, use the following link:
https://www.ncjrs.gov/App/Publications/abstract.aspx?ID=235399

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