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R&S
FS-K30
General Information
Quick
Start Guide
Software Manual 1300.6637.42 - 03
14
6. Press the
SET MEAS
softkey to open the Measurement Settings view
In order to perform measurements as accurately as possible the
Second Stage
Correction
field needs to be set. This specifies that a separate calibration
measurement is to be performed before the main measurement. The calibration
measurement allows the noise characteristics of the analyzer to be measured and
compensated for in the main measurement.
Selection
Calibration
2nd Stage Correction
7. Close the
SET MEAS
Settings view by pressing the
NOISE
hotkey.
1.5.1.1 Performing calibration
1. Connect the noise source to the RF input of the spectrum analyzer. (see Fig. 1)
2. Connect the supplied lowpass filter to the voltage supply input of the noise source.
Provide the voltage supply for the noise source by connecting it to the +28V socket of
the analyzer (labelled NOISE SOURCE on the instrument) via a coax cable and the
lowpass filter. The lowpass filter is connected between the noise source itself and the
NOISE SOURCE socket of the analyzer as shown.
The purpose of the lowpass filter is to suppress any interference (e.g. due to RF
interference), including interference from the supply line. This makes it possible to
perform very precise measurements.