R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT Measurement Examples
Harmonics Measurements
Operating Manual 1145.1084.12 – 30 93
To activate the measurement...
1. Reset the analyzer to ensure that the basic operating mode is set: Sweep Type: Lin. Frequency,
Trace - Measure: S21, Trace - Format: dB Mag.
2. Adjust the sweep range to your DUT, e.g. Channel - Stimulus - Start: 1GHz, Stop: 6 GHz.
3. Open the Channel - Mode - Noise Figure Meas menu and select Define Noise Figure
Measurement.
4. Keep the default settings for measurement time and mode; click OK to activate the noise figure
measurement.
After activating the measurement, the Noise Figure Calibration function is available.
Performing a power and noise figure calibration...
Calibration involves several stages. The first stage is a regular power calibration of the NWA source and
receiver.
1. Connect an external power meter to the end of the cable between the NWA source port (port 1)
and the attenuator input.
2. Select Channel - Calibration - Start Power Cal - Source Power Cal and calibrate the port 1 source
power in the usual way. Ensure that the calibrated source power will not overdrive the pre-amplifier / NWA
receiver system.
3. Remove the external power sensor and close the connection between port 1 and port2.
4. Select Channel - Calibration - Start Power Cal - Receiver Power Cal and calibrate the port 2
receiver power (wave quantity b
2
) in the usual way. For high input power levels at the NWA receive port, it
is recommended to set the IF Gain b to Low Distortion (Channel - Mode - Port Configuration). Make sure
that the power calibration is applied to the active channel.
The power calibration is complemented by a Noise Figure Calibration.
5. Select Channel - Mode - Noise Figure Meas - Noise Figure Cal to open the calibration wizard.
6. Perform the three calibration steps as described in section Noise Figure Calibration. Make sure
that the calibration is applied to the active channel.
Performing an S-parameter calibration...
An S-parameter calibration is required for S-parameter measurements in parallel to the noise figure
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