A fax demodulator is a device used to intercept fax messages by listening in on a telephone line[1] or radio signal.
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Fax Machine
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Transcription
Function
A typical (Group III) fax transmission requires a two-way conversation between two modems (that is, each participant must both transmit and receive).
Each modem may be part of a “fax machine” incorporating an image scanner and a printer.
Application
A demodulator can only be used to observe a conversation between two fax modems, usually to record the image transmitted.
It cannot be used to receive a fax transmission in the usual sense, because a sending modem cannot transmit an image without first negotiating a connection with a receiving modem.
References
- ^ Polishuk, Paul (May 11, 2007). "Fiber Optics Weekly Update; Vol 27 No. 19". Fiber Optics Weekly Update. Information Gatekeepers: 3. ISSN 1051-189X.
External links
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This page was last edited on 5 September 2023, at 00:32