pkg://dcf77time-19961119-3.i386.rpm:8403/usr/man/man1/dcf77time.1  info  downloads

.\" -*- nroff -*-
.TH DCF77TIME 1 
.SH NAME
dcf77time \- reads DCF77 radio clock information
.SH SYNOPSIS
.B dcf77time
[
.BI \-s 
seconds 
]
.BI device
.SH DESCRIPTION
.B dcf77time
reads from a 
.B DCF77-Module 
('Atom Clock')
via a serial port the raw time 
transmitted at 77.5 Khz from a antenna 
located at Mainflingen near Frankfurt/Main (Germany).  
The
.B DCF77-Module 
is sold by Conrad-Electronic in Germany (DCF-Modul "WT 100 seriell" -
Order-Nr. 64 19 60-12). It is not that accurate and doesn't provide
date information, but it's very cheap (18 DM).

.B dcf77time
shows the received information on the screen and sets the
.B system time
according to this information.
.SH OPTIONS

.TP
.B -s seconds
since the data read from the DCF77-Module might be corrupted in
some very rare cases (slow or heavy loaded machines)
the time read from the module is compared
with the system time. If these two values differ more than n
seconds the system time won't be set. A vallue of 0 seconds dissables
this feature. (default: 5 seconds) 

.TP
.B device 
The serial device to which the Module is connected.
.LP
.SH "SEE ALSO"
.BR date (1)
.BR clock (8),

.SH AUTHOR
Christian Brunner (chb@muc.de)