R&S ZNB Series User Manual page 301

®
R&S ZNB/ZNBT
5.2.4.1 Controls on the Intermod. tab
The following buttons in the "Intermod." tab open associated dialogs:
●
"More IM Products...": see
●
"More Intercept...": see
... at DUT Out/In
Note: The measurement of higher-order intermodulation products must be enabled
explicitly in the "Define Intermodulation" dialog, see
dulation Distortion Measurement
●
The "Lower IM3 Product at DUT Out" is the third-order lower intermodulation prod-
uct at the output of the DUT. This quantity corresponds to the outgoing wave quan-
tity (b wave) at the output of the DUT, measured at the frequency of the lower tone
minus the tone distance.
The lower and upper IM<n> frequencies are also displayed in the "Frequencies
and Powers" dialog, see
on page 591.
●
The "Upper IM3 Product at DUT Out" is the third-order upper intermodulation prod-
uct at the output of the DUT. This quantity corresponds to the outgoing wave quan-
tity (b wave) at the output of the DUT, measured at the frequency of the upper tone
plus the tone distance.
●
The "Major IM3 Product at DUT Out" is the lower or upper IM3 product at DUT out,
whichever is larger. The "Major IM3 Product" reveals the worst-case performance
of the DUT.
●
"Major IP3 at DUT Out" is the third-order major intercept point at the output of the
DUT. This quantity corresponds to the (fictitious) "Lower Tone at DUT Out", where
the major third-order intermodulation suppression (i.e. the ratio "Major IM3 Prod. at
DUT Out"/"Lower Tone at DUT Out") reaches 0 dB.
User Manual 1173.9163.02 ─ 62
Chapter 5.2.4.2, "IM Products
Chapter 5.2.4.3, "Intercept Points
dialog", on page 588.
Chapter 5.12.4.4, "Frequencies and Power
GUI reference
Meas softtool
dialog", on page 302
dialog", on page 303
Chapter 5.12.4.3, "Define Intermo-
dialog",
301