R&S SMW-K44 User Manual page 88

Satellite Navigation
3. Select "Antenna Configuration".
4. Select "Display > Body Mask".
The default configuration uses favorable conditions: isotropic antennas in open sky
environment.
5. For tests in more challenging environment, perform the following for each antenna:
a) Select "A# > Body Mask > Open Sky > Select Antenna Pattern File > Prede-
b) Select "A# > Antenna Pattern > Isotropic > Select Antenna Pattern File > Pre-
c) Confirm with "Select".
The "Select Antenna Pattern File" displays both, a list of available files and the con-
tent of the selected file.
6. To define which antenna is simulated, for example A1:
a) Select "A1" > Active.
b) Option: R&S SMW-K120
Note: Switching between the active antenna restarts the simulation.
The display is color coded, where the different power levels are indicated with dif-
ferent colors (see "Legend").
Three files describe an antenna, the body mask *.body_mask file, the antenna
pattern *.ant_pat file and the phase response *.phase file. The latter two files
must have the same filename and must be stored in the same directory. The
*.ant_pat file describes the power response matrix of each antenna.
With a selected antenna pattern, the R&S SMW simulates the satellite power and
carrier phase depending on the antenna pattern and attitude parameters.
User Manual 1178.6379.02 ─ 01
fined/User Files" and select the body mask description file.
defined/User Files" and select the antenna pattern file.
In "System Config > Mode > GNSS Advanced", select "Stream# > A1".
Real-World Environment
Antenna Configuration Settings
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