Rohde & Schwarz SMBV-P101, User Manual

Page: 37 / 131

GNSS Production Configuration and Settings
R&S
®
SMBV-P101
22 User Manual 1176.9787.02 ─ 05
"PRBSxx/Data List/Pattern"
Arbitrary data is available in "Static" mode.
A GNSS receiver recognizes signals generated in this way. There is
no real navigation data modulated with the GNSS spreading code but
the signal is sufficient for simple functional tests and sensitivity tests.
The receiver measures and displays the carrier to noise ratio of the
signal.
The following standard data sources are available:
●
"All 0, All 1"
An internally generated sequence containing 0 data or 1 data.
●
"PNxx"
An internally generated pseudo-random noise sequence.
●
"Pattern"
An internally generated sequence according to a bit pattern.
Use the "Pattern" box to define the bit pattern.
●
"Data List/Select DList"
A binary data from a data list, internally or externally generated.
Select "Select DList" to access the standard "Select List" dialog.
–
Select the "Select Data List > navigate to the list file *.dm_iqd
> Select" to select an existing data list.
– Use the "New" and "Edit" functions to create internally new
data list or to edit an existing one.
– Use the standard "File Manager" function to transfer external
data lists to the instrument.
See also "Main Dialog > Data List Management".
"Zero Navigation Data"
Navigation data with the ephemeris, almanac and satellite clock cor-
rection parameters set to zero.
Synchronization, timing and structure (e.g. channel coding) of the
message are the same as for "Real Navigation Data".
In this mode, you can select from the full set of SV-IDs for all GNSS.
In the "Real Navigation Data" mode, available are only the almanac
records that are existing in the almanac file and the healthy satellites.
Remote command:
[:SOURce<hw>]:BB:GNPR:NAVigation:DATA
on page 61
[:SOURce<hw>]:BB:GNPR:NAVigation:DATA:DSELect
on page 62
[:SOURce<hw>]:BB:GNPR:NAVigation:DATA:PATTern
on page 62
Time Conversion Configuration
Opens the Time Conversion Configuration Settings dialog.
Simulation Start Time
Sets the simulation start time in the format of the selected "Time Basis".
GNSS Main Dialog