22
Time Strings
Format of the Meinberg Standard Time String
The Meinberg Standard Time String is a sequence of 32 ASCII characters starting with
the STX (start-of-text) character and ending with the ETX (end-of-text) character. The
format is:
<STX>D:
dd.mm.yy
;T:
w
;U:
hh.mm.ss
;
uvxy
<ETX>
The letters printed in
italics
are replaced by ASCII numbers whereas the other characters
are part of the time string. The groups of characters as defined below:
<STX>
Start-Of-Text, ASCII Code 02h
sending with one bit occuracy at change of second
dd.mm.yy
the current date:
dd
day of month
(01..31)
mm
month
(01..12)
yy
year of the century
(00..99)
w
the day of the week
(1..7, 1 = Monday)
hh.mm.ss
the current time:
hh
hours
(00..23)
mm
minutes
(00..59)
ss
seconds
(00..59, or 60 while leap second)
uv
clock status characters (depending on clock type):
u
:
‘#’ GPS: clock is running free (without exact synchr.)
PZF: time frame not synchronized
DCF77: clock has not synchronized after reset
‘ ‘ (space, 20h)
GPS: clock is synchronous (base accuracy is reached)
PZF: time frame is synchronized
DCF77: clock has synchronized after reset
v
:
‘*’ GPS: receiver has not checked its position
PZF/DCF77: clock currently runs on XTAL
‘ ‘ (space, 20h)
GPS: receiver has determined its position
PZF/DCF77: clock is syncronized with transmitter
x
time zone indicator:
‘U’ UTC
Universal Time Coordinated, formerly GMT
‘ ‘
MEZ
European Standard Time, daylight saving disabled
‘S’
MESZ European Summertime, daylight saving enabled
y
anouncement of discontinuity of time, enabled during last hour
before discontinuity comes in effect:
‘!’
announcement of start or end of daylight saving time
‘A’ announcement of leap second insertion
‘ ‘
(space, 20h) nothing announced
<ETX>
End-Of-Text, ASCII Code 03h
Содержание GPS167SV
Страница 1: ...Incl Windows Software GPSMON32 GPS167SV Technical Information Operating Instructions ...
Страница 30: ...30 ...
Страница 32: ...32 IRIG Standard Format x 3x TYPICAL MODULATED CARRIER IRIG A 10000 Hz IRIB B 1000 Hz binary 0 binary 1 ...
Страница 33: ...33 AFNOR Standard Format ...
Страница 40: ...40 ...
Страница 43: ...43 Diskette with Windows Software GPSMON32 ...
Страница 44: ...GP S 1 6 7 S V E 0 5 0 5 0 6 ...