Making The Measurement - Keysight Technologies N5511A User Manual

FM Discriminator Measurement Examples
FM Discriminator Single Channel Measurement using FM Rate and Deviation
Calibration

Making the measurement

1. Press the Continue button when you are ready to make the measurement.
Calibrating the measurement
The calibration procedure determines the discriminator constant to use in the
transfer response by measuring the system response to a known FM signal.
Note that the system must be operating in quadrature during calibration.
2. Establish quadrature by adjusting the phase shifter until the meter
indicates 0 volts, then press Continue.
3. Apply modulation to the carrier signal, then press Continue.
4. Remove the modulation from the carrier and connect your DUT.
N5511A Phase Noise Test System User's Guide 251