R&S ZVB - Page 371

R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT GUI Reference
Channel Menu
Operating Manual 1145.1084.12 – 30 356
Def CW Mode Intermodulation Spectrum
The Def CW Mode Intermodulation Spectrum dialog configures and displays the intermodulation spectrum
measurement.
The intermodulation spectrum measurement is performed at a fixed frequency of the lower tone (CW
Frequency) and the upper tone (CW Frequency + Tone Distance), respectively. The measurement
comprises intermodulation products up to a selectable order (Max IM Order). In order to display the
intermodulation spectrum measurement the channel settings have to be modified by the firmware. This
can either be done in the current channel (Overwrite Current Channel Settings) or a new channel can be
created for the intermodulation spectrum measurement (Create New Channel).
The following example shows an intermodulation spectrum with the following settings:
 CW Frequency: 1 GHz (lower tone, position of marker M3)
 Tone Distance: 1 MHz (defines the upper tone, position of marker M1)
 Max. IM Order: 9. The peaks correspond to the intermodulation products lower IM9, lower IM7,
lower IM5, lower IM3 (marker M4), lower tone, upper tone, upper IM3 (marker M2), upper IM5,
upper IM7, upper IM9.