Rohde & Schwarz R&S ZNB - Page 277

GUI Reference
R&S
®
ZNB/ZNBT
277User Manual 1173.9163.02 ─ 53
●
"Balanced Ports...": see Chapter 6.2.1.3, "Balanced Ports Dialog", on page 256
Imbalance/CMRR
Selects an imbalance or CMRR parameter as a measured quantity for the active trace.
These parameters are expressed as "Imb
<out><in>
" or "CMRR
<out><in>
", where <out> and
<in> denote the logical output and input port numbers of the DUT.
Remote command:
CALCulate<Ch>:PARameter:MEASure "<Trace_Name>", "IMB21" |
"IMB12" | "CMRR11" | "CMRR21" | "CMRR12" ...
CALCulate<Ch>:PARameter:SDEFine "<Trace_Name>", "IMB21" |
"IMB12" | "CMRR11" | "CMRR21" | "CMRR12" ...
Imb21/Imb12 /CMRR21/CMRR12
Selects one of the standard 2-port imbalance or CMRR parameters as a measured
quantity for the active trace. The buttons are available if either logical port 1 or logical
port 2 (or both) is defined as a balanced port.
A yellow font color indicates that currently the other logical port number is undefined
and the physical port with the same number is marked as unused. If you select it as the
measured quantity, the port is automatically enabled as a single-ended port with "logi-
cal port number" = "physical port number".
Remote command:
CALCulate<Ch>:PARameter:MEASure "<Trace_Name>", "IMB21" |
"IMB12" | "CMRR21" | "CMRR12"
CALCulate<Ch>:PARameter:SDEFine "<Trace_Name>", "IMB21" |
"IMB12" | "CMRR21" | "CMRR12"
6.2.8.2 Imbalance Differential Dialog
Allows you to measure the differential mode imbalance of a DUT with balanced input
and output ports, connected to a balanced and two single-ended logical ports at the
VNA.
Access: TRACE – [MEAS] > "Imbal. CMRR" > "Imbalance Differential..."
Meas Softtool