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Frequency Sweep (External Coupler) Mode
8. Set the sweep frequencies:
• Start frequency: 8.7 MHz
• Stop frequency: 12.7 MHz
• Number of points: 201
The other settings will be automatically calculated and the Sweep area of the
Frequency Sweep (External Coupler) mode window should now look like
below.
9. Set the reference resistance.
Default: 50 Ω
The reference resistance is used to calculate the reflection coefficient and
the VSWR.
10.Calibrate the measurement setup as described in 7.6 "Calibration in the
Frequency Sweep (External Coupler) Mode" on page 91.
Hint: Due to the strongly varying parameters of directional couplers a
calibration is mandatory before performing a measurement. If you start a
measurement in the Frequency Sweep (External Coupler) mode without
calibration, the following dialog box appears.
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