User’s Manual Innomar SES Parametric Sub-bottom Profilers 59
Innomar Technologie GmbH (2020-09) 59
SIS String for PC Time Synchronisation:
It is possible to synchronize the PC clock to the GNSS time obtained from one of the above-
defined “SIS strings” or from the “$xxZDA” NMEA time string. The PC clock will be set to UTC or
a synchronized local time (depending on the WINDOWS OS time zone settings). The ID of the
“SIS string” containing the GNSS time has to be set accordingly to the “String Extraction” settings
made above.
If “-$xxZDA-” is selected, SESWIN will look for any ZDA datagram within the “Navigation IN” data
and use this for time sync, independent on the “String Extraction” settings.
If you choose UTC the PC clock will be set to the time as received in the SIS string.
If you choose local the PC clock keeps local time synchronized to the received time string. For
this the Windows time zone settings are used and the received time string is assumed to repre-
sent UTC. Not to change the local time is useful if you have to synchronize to other data with time
stamps ofg the same time zone in post-processing, like data from tide gauges.
!
This feature must not be used if the data acquisition PC’s clock is already synchronized
to a time server (e.g. the Windows NTP option)!
4.11.9 System Setup – Settings – Navigation Input – NAV Input Monitor
For checking the correct COM port settings and the incoming data on the “NAV Input” port, the
integrated NAV Input Monitor can be used. It captures the input data of the assigned COM port.
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