ISSN: 0022-1198
CODEN: JFSCA
Published Online: 1 October 1983
Page Count: 7

Radio Frequency Interference with the Model 1000SA Alco-Analyzer ® Gas Chromatograph
Freed, RA
Sergeant, Upper Gwynedd Township Police Department, PA

(Received 13 December 1982; accepted 8 February 1983)

Abstract

Radio frequency interference (RFI) from available frequencies in the 150 to 170 mHz band has been identified as affecting the analysis of a vapor sample using an Alco-Analyzer® gas chromatograph. Various effects on the recording of the ethyl alcohol concentration curve are discussed and demonstrated for identification of rf-induced changes.

Keywords:
forensic science, breath-alcohol testing devices, radio frequency interference

Paper ID: JFS11608J
DOI: 10.1520/JFS11608J
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