GUI Reference
R&S
®
ZNB/ZNBT
550
User Manual 1173.9163.02 ─ 53
If a frequency conversion measurement is active, a second source power calibra-
tion is performed at the converted lower tone frequency (receiver frequency). This
second source power calibration is the basis for the receiver calibration in step 3.
●
Source power calibration for the upper tone signal. The setup of step 1 is main-
tained. During the upper tone source power calibration, the lower tone is switched
off.
For frequency conversion measurements, no new source power calibration at the
receiver frequency is performed.
●
Receiver power calibration for the measured intermodulation products. The
combiner output is connected to the receiving port. The receiving port is calibrated
at the frequency of the intermodulation products using the signal from the lower
tone signal calibrated in the first step.
If a frequency conversion measurement is active, a second receiver power calibra-
tion is performed at the converted lower tone frequency.
If a free analyzer or generator port is used for the receiver power calibration (see
on page 546), an additional source power calibration for this port is
required. The additional calibration step is performed before step 3; the external power
meter must be connected to the calibrated port.
Channel Config Softtool
