Annotation of embedaddon/ntp/html/drivers/tf582_4.html, revision 1.1.1.1
1.1 misho 1: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
2:
3: <html>
4:
5: <head>
6: <meta name="GENERATOR" content="Adobe PageMill 3.0 per Windows">
7: <meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
8: <title>PTB Modem Time Service</title>
9: <link href="scripts/style.css" type="text/css" rel="stylesheet">
10: </head>
11:
12: <body>
13: <h3>European Automated Computer Time Services</h3>
14: <hr>
15: <p>Several European countries use the following message data format:</p>
16: <p><font size="-1" face="Courier New">Data format<br>
17: 0000000000111111111122222222223333333333444444444455555555556666666666777777777 7<br>
18: 0123456789012345678901234567890123456789012345678901234567890123456789012345678 9<br>
19: 1995-01-23 20:58:51 MEZ 10402303260219950123195849740+40000500 *<br>
20: A B C D EF G H IJ K L M N O P Q R S T U V W XY Z<CR><LF><br>
21: A year<br>
22: B month<br>
23: C day<br>
24: D hour<br>
25: E : normally<br>
26: A for DST to ST switch first hour<br>
27: B for DST to ST switch second hour if not marked in H<br>
28: F minute<br>
29: G second<br>
30: H timezone<br>
31: I day of week<br>
32: J week of year<br>
33: K day of year<br>
34: L month for next ST/DST changes<br>
35: M day<br>
36: N hour<br>
37: O UTC year<br>
38: P UTC month<br>
39: Q UTC day<br>
40: R UTC hour<br>
41: S UTC minute<br>
42: T modified julian day (MJD)<br>
43: U DUT1<br>
44: V direction and month if leap second<br>
45: W signal delay (assumed/measured)<br>
46: X sequence number for additional text line in Y<br>
47: Y additional text<br>
48: Z on time marker (* - assumed delay / # measured delay)<br>
49: <CR>!<LF> ! is second change !<br>
50: </font></p>
51: <p>This format is an ITU-R Recommendation (ITU-R TF583.4) and is now available from the primary timing centres of the following countries: Austria, Belgium, Germany, Italy, The Netherlands, Poland, Portugal, Romania, Spain, Sweden, Switzerland, Turkey and United Kingdom. Some examples are:</p>
52: <ul>
53: <li>In Germany by Physikalisch-Technische Bundesanstalt (PTB)'s timecode service. Phone number: +49 5 31 51 20 38.
54: <p>For more detail, see <a href="http://www.ptb.de/english/org/4/43/433/disse.html">http://www.ptb.de/english/org/4/43/433/disse.htm</a></p>
55: <li>In the UK by National Physical Laboratory (NPL)'s TRUETIME service. Phone number: 0891 516 333
56: <p>For more detail, see <a href="http://www.npl.co.uk/npl/ctm/truetime.html">http://www.npl.co.uk/npl/ctm/truetime.html</a></p>
57: <li>In Italy by Istituto Elettrotecnico Nazionale "Galileo Ferrais" (IEN)'s CTD service. Phone number: 166 11 46 15
58: <p>For more detail, see <a href="http://www.ien.it/tf/time/Pagina42.html">http://www.ien.it/tf/time/Pagina42.html</a></p>
59: <li>In Switzerland by Swiss Federal Office of Metrology's timecode service. Phone number: 031 323 32 25
60: <p>For more detail, see <a href="http://www.metas.ch/en/labors/official-time/modem/index.html">http://www.ofmet.admin.ch/de/labors/4/Zeitvert.html </a></p>
61: <li>In Sweden by SP Swedish National Testing and Research Institute 's timecode service. Phone number: +46 33 415783.
62: <p>For more detail, see <a href="http://www.sp.se/metrology/timefreq/eng/tandf.htm">http://www.sp.se/metrology/timefreq/eng/tandf.htm</a></p>
63: </ul>
64: <dl></dl>
65: <h4>Additional Information</h4>
66: <p><a href="../refclock.html">Reference Clock Drivers</a></p>
67: <hr>
68: <script type="text/javascript" language="javascript" src="scripts/footer.txt"></script>
69: </body>
70:
71: </html>
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