Rohde & Schwarz ZNB20, User Manual

Page: 375 / 1332

GUI Reference
R&S
®
ZNB/ZNBT
360 User Manual 1173.9163.02 ─ 38
5.5.2.1 Controls on the Port Config Tab
The buttons in the "Port Config" tab open the following dialogs:
●
"Port Settings...", see Chapter 5.5.2.2, "Port Settings Dialog" , on page 361
●
"Balanced Ports...", see Chapter 5.9.1.3, "Balanced Ports Dialog" , on page 440
●
"Multiple DUTs...", see Chapter 5.5.2.3, "Define Parallel Measurement Dialog" ,
on page 366
If either multiple DUTs are configured (see Chapter 5.5.2.3, "Define Parallel Measure-
ment Dialog" , on page 366) or the "Fixture Simulator" is disabled for the related chan-
nel (see "Fixture Simulator" on page 346), the "Balanced Ports..." button is inactive
(greyed out).
Stimulus Axis – Frequency / Power
Selects either the channel base frequency/power or one of the port frequencies/powers
as the stimulus axis in all diagrams of the active recall set. The selected stimulus axis
is displayed in the channel line. Select the axis according to your port configuration and
measurement results.
Example:
Port 1 provides the RF input signal for a mixer; the IF output signal is measured at Port
2. The port frequency of Port 1 is equal to the channel base frequency f
b
, the port fre-
quency of Port 2 is set to the IF frequency f
b
+ f
LO
. To view the received wave b
2
over
the entire IF frequency range, select port 2 as a frequency stimulus axis.
The lists include external generator and power meter ports. The "Frequency" list is dis-
abled while the frequency conversion is switched off.
Remote command:
[SENSe<Ch>:]SWEep:AXIS:FREQuency
[SENSe<Ch>:]SWEep:AXIS:POWer
Channel Config Softtool