skip navigation

CrimeSolutions.gov

Add your conference to our Justice Events calendar

PUBLICATIONS

Register for Latest Research

Stay Informed
Register with NCJRS to receive NCJRS's biweekly e-newsletter JUSTINFO and additional periodic emails from NCJRS and the NCJRS federal sponsors that highlight the latest research published or sponsored by the Office of Justice Programs.

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. See the Obtain Documents page for direction on how to access resources online, via mail, through interlibrary loans, or in a local library.

 
  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:
https://www.ncjrs.gov/App/Publications/abstract.aspx?ID=235399

*A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's website is provided. Tell us how you use the NCJRS Library and Abstracts Database - send us your feedback.