R&S FSH Network Analyzer Mode
Performing Scalar Measurements
Operating Manual 1173.6275.12 - 30 187
6.3 Performing Scalar Measurements
With scalar measurements, you can measure the magnitude of both reflection and
transmission characteristics of a device under test. To calibrate the measurements,
only normalization is available.
6.3.1 Measuring the Transmission
The example included here is based on a transmission measurement of a two-port
filter. The filter has a center frequency of 2060 MHz and a bandwidth of about 11 MHz.
Test setup
► Connect the input of the DUT to the tracking generator output (port 2).
► Connect the output of the DUT to the RF input (port 1).
Preset the R&S FSH
Before starting the measurement procedure, preset the R&S FSH to restore the default
configuration and connect the filter between the measurement ports.
► Press the PRESET key.
► Connect the DUT.
Start scalar measurements
► Press the MEAS key.
► Press the "Meas Mode" softkey.
► Select the "Scalar" menu item.
Select the type of transmission measurement
► Press the "Result Display" softkey.
► Select the "Transmission Fwd (Port 12)" menu item for transmission
measurements in forward direction or "Transmission Rev (Port 12)" menu item
for transmission measurements in reverse direction.
► Select the "Transmission Fwd and Rev" menu item for a simultaneous display of
both forward and reverse transmission measurements.
In case of a simultaneous display, the R&S FSH shows two traces with a different
color in the result display. One for the measurement in forward direction and one
for the measurement in reverse direction. A label in the result display shows the
direction a trace belongs to.
Note that the simultaneous display of both directions is only possible with a high
accuracy calibration.
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