Rohde & Schwarz 1145.1010.04/05/06, Руководство по эксплуатации

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R&S
®
ZVA/ZVB/ZVT Channel Menu
1145.1084.12 4.155 E-6
Reference impedance settings
The default reference impedance for a physical port is equal to the reference impedance of the
connector type assigned to the port but can be defined as an arbitrary complex value (renormalization
of port impedances). By changing the reference impedance, it is possible to convert the measured
values at 50 (75 ) into values at arbitrary port impedances.
To perform a system error correction, the physical port must be available as a source and receive
port. This condition is met if it is selected as a measured port in the Balanced and Measured
Ports dialog (Meas is on).
To perform a system error correction, it is necessary that:
•
the physical port is available as a source port
•
both the measurement and the reference channel at the port can be measured
These conditions are met with the Port Configuration settings listed below.
Section Parameter Value
Meas On on
Source On on
Perm off
Receiver LO a on
LO b on
Remote control: [SENSe<Ch>:]CORRection:COLLect:CONNection<port_no>
[SENSe<Ch>:]CORRection:COLLect:CONNection:PORTs ALL
|
SINGle
SENSe:PORT<phys_port>:ZREFerence <real>
[,<imaginary]
Source
Shows and/or defines the RF generator settings for each physical port of the analyzer and for each
external generator. No source settings are provided for external power meters.
Most of the settings in this section require option ZVA-K4, Arbitrary Generator and Receiver
Frequencies. This option is available for ZVA and ZVT network analyzers only.
•
RF Off switches the RF signal source at the port off (box checked) or on. Dependencies: The
column is disabled (grayed) while the RF power is switched off globally for the active channel.
The settings are restored as soon as the RF power is switched on again. RF Off and Meas are
independent from each other: While the RF power is switched off, the port is not necessarily