contrib/ntp/html/drivers/driver32.html

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   7                 <title>Chrono-log K-series WWVB receiver</title>
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  12                 <h3>Chrono-log K-series WWVB receiver</h3>
  13 <p>Last update:
  14   <!-- #BeginDate format:En2m -->21-Oct-2010  23:44<!-- #EndDate -->
  15   UTC</p>
  16                 <hr>
  17                 <h4>Synopsis</h4>
  18                 <p>Address: 127.127.32.<i>u</i><br>
  19                         Reference ID: <tt>CHRONOLOG</tt><br>
  20                         Driver ID: <tt>CHRONOLOG</tt><br>
  21                         Serial Port: <tt>/dev/chronolog<i>u</i></tt>; 2400 bps, 8-bits, no parity<br>
  22                         <br>
  23                         Features: <tt>(none)</tt></p>
  24                 <h4>Description</h4>
  25                 <p>This driver supports the Chrono-log K-series WWVB receiver. This is a very old receiver without provisions for leap seconds, quality codes, etc. It assumes output in the local time zone, and that the C library mktime()/localtime() routines will correctly convert back and forth between local and UTC. There is a hack in the driver for permitting UTC, but it has not been tested.</p>
  26                 <p>Most of this code is originally from refclock_wwvb.c with thanks. It has been so mangled that wwvb is not a recognizable ancestor.</p>
  27                 <pre>
  28 Timecode format: Y yy/mm/ddCLZhh:mm:ssCL
  29 Y - year/month/date line indicator
  30 yy/mm/dd -- two-digit year/month/day
  31 C - \r (carriage return)
  32 L - \n (newline)
  33 Z - timestamp indicator
  34 hh:mm:ss - local time
  35 </pre>
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