Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!samsung!sol.ctr.columbia.edu!emory!rsiatl!jgd From: jgd@Dixie.Com (John G. DeArmond) Newsgroups: comp.unix.sysv386 Subject: Standard Time Message-ID: <5622@rsiatl.Dixie.Com> Date: 4 Jan 91 18:30:59 GMT References: <1028@mwtech.UUCP> Organization: Rapid Deployment Systems (making go-fast things and things that-go fast) Lines: 22 martin@mwtech.UUCP (Martin Weitzel) writes: >As a related topic: I've heard that there are some commercially available >receiver boards for PCs that decode radio station which send time signals >on long wave (in Germany "Sender Mainflingen" of the PTB). Does anybody >have experience with such boards? Drivers for UNIX? I don't know about an internal board but here at rsiatl, we have a Heathkit "Most Accurate Clock" that receives WWV and decodes the 100 hz data carrier and makes it available on an RS-232 port. We have a small Perl script that reads this data from the port and sets the system clock. Thus the timestamp on this article is WWV-accurate to within a second :-) Our script reports how much correction must be made each time it runs. A second a day is normal. John -- John De Armond, WD4OQC | "Purveyors of speed to the Trade" (tm) Rapid Deployment System, Inc. | Home of the Nidgets (tm) Marietta, Ga | "To be engaged in opposing wrong offers but {emory,uunet}!rsiatl!jgd | a slender guarantee of being right."