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                            Library & Multimedia
 Software Radio for School Safety
NCJ Number
              213895

Author(s)
          Andrew  Beard
Date Published

2005
Length
              3 pages
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.
      
  
          Additional Details
Grant Number(s)
        2001-RD-CX-K003


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Publication Type
        Best Practice/State-of-the-Art Review


  
  
        
  Award
        Software Radio for School Safety
    
  
  
Date Published: January 1, 2005
    
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