Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!dimacs.rutgers.edu!seismo!uunet!world!jon_sree From: jon_sree@world.std.com (Jon Sreekanth) Newsgroups: comp.dcom.fax Subject: Re: Fax transmission times Message-ID: Date: 24 Jan 91 15:29:28 GMT References: <1991Jan23.223517.531@uunet!bandw> <20602@know.pws.bull.com> Sender: jon_sree@world.std.com (Jon Sreekanth) Distribution: usa Organization: The World Lines: 36 In-Reply-To: eli@pws.bull.com's message of 24 Jan 91 14:27:12 GMT In article <20602@know.pws.bull.com> eli@pws.bull.com (Steve Elias) writes: In article <1991Jan23.223517.531@uunet!bandw> craig@bandw.uunet (Craig Goss) writes: >manufacturers of fax machines that claim a "x second" >transmission time. lies, damned lies, and benchmarks. :) Many times, these optimistic speeds are quoted for transmission between models from the same manufacturer, where the units transact some proprietary compression mode. My Sharp FO 215 says in the user manual, "Approx transmission time, 15 sec, in Sharp special mode. Based on CCITT test chart #1 at standard resolution in Sharp special mode, excluding time for protocol signals i.e. CCITT phase C only" For true numbers, IMHO, magazine reviewers are more realistic, since they'll give a time measurement for the whole process, from picking up the phone to hanging up. This is really what one is interested in, rather than just the document transmission phase. In actual use, my machine is certainly under a minute for 1 page transmissions, but when used in halftone mode, with a postcard sized photograph, it's about 90 - 120 seconds. Regards, / Jon Sreekanth Assabet Valley Microsystems Fax and PC products 346 Lincoln St #722, Marlboro, MA 01752 508-562-0722 jon_sree@world.std.com