Meinberg GPS165, Manual

Page: 55 / 62

8 Technical Specifications GPS165 receiver
8.4.11 Format of the Meinberg GPS Time String
The Meinberg Standard Time String is a sequence of 36 ASCII characters starting with the STX (start-of-text)
character and ending with the ETX (end-of-text) character. Contrary to the Meinberg Standard Telegram the
Meinberg GPS Timestring carries no local timezone or UTC but the direct GPS time without conversion into
UTC. The format is:
<STX>D: tt.mm.jj;T:w;U:hh.mm.ss;uvGy;lll <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)
tt.mm.jj
the current date:
tt
day of month (01..31)
mm
month (01..12)
jj
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:
u : ’#’ clock is running free (without exact synchr.)
’ ’ (space, 20h)
clock is synchronous (base accuracy is reached)
v
: ‘*’ receiver has not checked its position
‘ ‘ (space, 20h)
receiver has determined its position
G time zone indicator ’GPS-Time’
y
anouncement of discontinuity of time, enabled during last hour
before discontinuity comes in effect:
‘A’
announcement of leap second insertion
‘ ‘ (space, 20h) nothing announced
lll number of leap seconds between UTC and GPS-Time
(UTC = GPS-Time + number of leap seconds)
<ETX> End-Of-Text, (ASCII Code 03h)
GPS165XHS Date: 5th November 2019 51