Date: Mon, 23 Dec 1996 20:08:29 +0100 From: Lars Koeller <lkoeller@odie.physik2.uni-rostock.de> To: Robert Eckardt <roberte@mep.ruhr-uni-bochum.de> Cc: robmel@nadt.org.uk (Robin Melville), questions@FreeBSD.ORG Subject: Re: Radio clock timer? Message-ID: <199612231908.UAA20352@odie.physik2.uni-rostock.de> In-Reply-To: roberte's message of Sat, 21 Dec 1996 19:10:02 %2B0100. <199612211810.TAA00439@ghost.mep.ruhr-uni-bochum.de>
next in thread | previous in thread | raw e-mail | index | archive | help
In message <199612211810.TAA00439@ghost.mep.ruhr-uni-bochum.de>, Robert Eckardt writes: >> Is anyone in UK/Europe using a radio clock to drive ntp, and can recommend a >> suitable clock device? > >I'm using one (with xntp). >It's a cheap DCF radio clock interfaced (self-soldered) with the >(otherwise unused) gameport. A kernel driver collects the received >bits and a user level program filters the noise and sets the system >clock. (Currently running on FreeBSD 2.1.5.) > >However, nowadays there are easier solutions, not requiring any soldering. >One is an interface for the parallel port from Conrad Electronic, >D-92240 Hirschau, Germany for ca. 50.- DM (incl WinDOS SW :-). I ordered such a beast from Conrad, too, and get a small SMD DCF-77 to serial line converter from the German iX magazine (the components are also available from Conrad Electronic). It runs fine, if you simply plug it to the serial line and compile xntpd with the required flags. If you are interested, I can give you more details in about 2 weeks! It's christmass! Regards Lars > >I think also modules for the serial ports are available -- don't know >about the protocol. >Maybe s/o else on this list has experience with this sort of modules. > >Robert > >> We have an intranet & no direct Internet connection, so need to generate ntp >> timing via wireless. >> >> Any advice greatly received :) >> >> Regards, >> >> Robin. >> -------------------------------------------------------- >> Robin Melville, Addiction & Forensic Information Service >> Nottingham Alcohol & Drug Team (Extn. 49178) >> Vox: +44 (0)115 952 9478 Fax: +44 (0)115 952 9421 >> Email: robmel@nadt.org.uk >> WWW: http://www.innotts.co.uk/~nadt/ >> -------------------------------------------------------- > >-- >Robert Eckardt \\ FreeBSD -- solutions for a large universe.(tm >) >RobertE@MEP.Ruhr-Uni-Bochum.de \\ What do you want to boot tomorrow ?(tm >) >http://WWW.MEP.Ruhr-Uni-Bochum.de/~roberte >For PGP-key finger roberte@gluon.MEP.Ruhr-Uni-Bochum.de -- ------------------------------------------------------------------------ Internet: | Lars Koeller Lars_Koeller@odie.physik2.Uni-Rostock.DE | Department of Physics ftp://odie.physik2.uni-rostock.de | University of Rostock PGP-key: | Germany http://www.nic.surfnet.nl/pgp/pks-toplev.html | ----------- FreeBSD, what else? ---- http://www.freebsd.org ------------
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199612231908.UAA20352>