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NCJRS Celebrates National Library Week April 12-18

National Library Week

Started in 1958, National Library Week is a nationwide observance celebrated by all types of libraries - including the NCJRS Virtual Library. NCJRS invites you to explore the breadth and scope of the NCJRS Virtual Library collection and services. With more than 220,000 collection documents and 60,000 online resources, including all known Office of Justice Programs works, it is one of the world’s largest criminal justice special collections.

We encourage your Feedback. Tell us how you use the NCJRS Virtual Library and Abstracts Database, how you access the collection, and any ways we can improve our services.

NCJRS Abstract

The document referenced below is part of the NCJRS Library collection.
To conduct further searches of the collection, visit the NCJRS Abstracts Database.

How to Obtain Documents
NCJ Number: NCJ 213895     Find in a Library
Title: Software Radio for School Safety
  Document URL: PDF 
Author(s): Andrew Beard
Date Published: 2005
Page Count: 3
  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
Sponsoring Agency: National Institute of Justice (NIJ)
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
Type: Best Practice/State-of-the-Art Review
Country: United States of America
Language: English
  To cite this abstract, use the following link:

* A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's web site is provided.