R&S SMW-K44 User Manual page 38

Satellite Navigation
Current Leap Seconds (Ref. 1980) ← Leap Second Configuration
Displays the currently used leap second.
Remote command:
[:SOURce<hw>]:BB:GNSS:TIME:CONVersion:LEAP:SEConds
Next Leap Second Date ← Leap Second Configuration
Determines the date of the next UTC time correction.
Remote command:
[:SOURce<hw>]:BB:GNSS:TIME:CONVersion:LEAP:DATE
Leap Sign ← Leap Second Configuration
The time correction is performed in steps of one second.
One second can be added to or subtracted from the current leap second value.
Remote command:
[:SOURce<hw>]:BB:GNSS:TIME:CONVersion:LEAP:SIGN
Date/WN, Tome/TOW, UTC Offset
Displays overview information on the parameters used for the time conversion between
the different navigation standards.
The basis for the time conversion is the UTC. The parameters of each of the navigation
standards are set as an offset to the UTC.
For in-depth configuration, use the
Remote command:
[:SOURce<hw>]:BB:GNSS:TIME:STARt:UTC:DATE?
[:SOURce<hw>]:BB:GNSS:TIME:STARt:UTC:TIME?
[:SOURce<hw>]:BB:GNSS:TIME:STARt:UTC:OFFSet?
[:SOURce<hw>]:BB:GNSS:TIME:STARt:GPS:WNUMber?
[:SOURce<hw>]:BB:GNSS:TIME:STARt:GPS:TOWeek?
[:SOURce<hw>]:BB:GNSS:TIME:STARt:GPS:OFFSet?
(etc. for the other GNSS systems)
Additional UTC Parameters
Sets the time conversion parameters required for switching from one timebase to
another, for example GPS to UTC. The time conversion is performed according to the
following equation:
t = (t
UTC
●
delta_t
●
t
Reference Week/Date, Reference Time of Week ← Additional UTC Parameters
Sets the reference data and time per navigation standard.
Remote command:
[:SOURce<hw>]:BB:GNSS:TIME:CONVersion:GPS:UTC:WNOT
[:SOURce<hw>]:BB:GNSS:TIME:CONVersion:GPS:UTC:TOT
User Manual 1178.6379.02 ─ 01
- delta_t ) modulo 86400, where:
E UTC
= delta_t +A
UTC LS
= t or t
E GPS Galileo
"Additional UTC Parameters"
+A (t -T +604800(WN-WN
0 1 E ot
Simulation Time
Time Configuration Settings
on page 219
on page 219
on page 219
on page 38 dialog.
on page 220
on page 220
on page 222
on page 221
on page 221
on page 222
))
ot
on page 222
on page 223
38