Specifications

User InterfaceGPS and Assisted GPS
33Operating Manual 1171.5248.12 ─ 15
Sets the localization mode.
"Auto SV
Selection"
Four satellites per baseband will be selected depending on the selected
almanac.
For instruments equipped with two-paths, a total number of eight sat-
ellites will be selected.
The ephemerides are read out of the almanac and displayed in the 
Navigation Message Configuration dialog.
See also chapter 2.8.3, "Generating GPS Signal with Flexible Simula-
tion Time (Localization Mode Auto SV Selection)", on page 20.
"Auto SV
Selection and
Update"
In this localization mode, a new satellite will be selected as soon as the
elevation of a satellite is less then the selected Satellite Elevation
Mask or a new satellite constellation with better PDOP is found.
The ephemeris data of all satellites are updated automatically.
In case the start time of the simulation differs to the TOA (Time of
Almanac), the TOE (Time of Ephemeris) will be automatically updated.
See also chapter 2.8.4, "Generating GPS Signal with Satellite Hand-
over (Localization Mode Auto SV Selection and Update)", on page 21.
"Full Configu-
ration"
(enabled with option Assisted GPS (R&S-K65) only)
Selection "Full Configuration" as Localization mode enables the con-
figuration of all parameter of the "Navigation Message".
Neither ephemeris data nor the visible satellites are updated but all
parameter of the "Navigation Message" are enabled for configuration.
This mode is useful for the generation of A-GPS test signals different
than the standardized ones (see chapter 2.8.5, "Generating A-GPS
Custom Build Scenarios (Localization Mode Full Configura-
tion)", on page 22).
SCPI command:
[:SOURce<hw>]:BB:GPS:LMODe on page 75
Trigger/Marker
Calls the menu for selecting the trigger source, for configuring the marker signals and for
setting the time delay of an external trigger signal (see chapter 3.6, "Trigger/Marker/Clock
Settings", on page 63).
The currently selected trigger source is displayed to the right of the button.
SCPI command:
n.a.
Execute Trigger
Executes trigger manually. A manual trigger can be executed only when an internal trig-
ger source and a trigger mode other than "Auto" have been selected.
SCPI command:
[:SOURce<hw>]:BB:GPS:TRIGger:EXECute on page 132
GPS Main Dialog