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Alternatively, the user can also specify any desired offset value. This is configured under
the scenario menu:
Advanced > GPS to UTC offset , or by using the scenario file para-
meter GpsToUtcOffset .
The allowed values are:
Auto : In this setting, the initial offset is determined by scenario start time
Rinex : determined by information taken from navigation data files attached to a
scenario
<Fixed Offset in Seconds> : the user can select an offset from a range of 0-30
An up-to-date leap second events history is embedded in each firmware release, but you
can also download the latest list from the Internet using
Options > Advanced options >
Download leap seconds list .
Considerations
Note that downloaded and default navigation data files do not contain any LSF information
(RINEX v2.1). Therefore, it is still necessary to set the LSF when a leap second change will
occur, in order to ensure correct behavior.
3.5.7 Event Data
Events can be used to introduce changes into a running scenario. Events can be used to
change the power levels of satellites, to control multipath settings, and to control nav-
igation bits, e.g. simulating bit errors in the navigation message. Events are captured in
event files.
Each line of an event file describes one event, using one of the following formats:
1.
TIME {scenario | prn SATID | channel NUMBER | system SYSTEM} rel-
power RELPOWER
2.
TIME {scenario | prn SATID | channel NUMBER | system SYSTEM}
abspower on|off|ABSPOWER
3.
TIME {prn SATID | channel NUMBER} duplicate RELRANGE RELDOPPLER
RELPOWER EFFECTIVETIME [CHTARGET]
4.
TIME {prn SATID | channel NUMBER} multipath RELRANGE RANGECHANGE
RANTEINTERVAL RELDOPPLER DOPPLERCHANGE DOPPLERINTERVAL RELPOWER
POWERCHANGE POWERINTERVAL [INSTANCE]
5.
TIME {prn SATID | channel NUMBER} delete [INSTANCE]
6.
TIME prn SATID navbits SIGTYPE SFID PAGEID STARTBITPOS ENDBITPOS
HEXSTRING REPEAT CRCFLAG PRINTFLAG
All formats begin with a time tag (TIME), which is the time of application for the event,
measured as seconds passed since the scenario Start Time. Events which apply to all
54 User Manual GSG-5/6 Series Rev. 27
3.5 "Select" Menu