R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT GUI Reference
System Menu
Operating Manual 1145.1084.12 – 30 536
If Fast Sweep is activated, the analyzer compiles a list of the stimulus values (frequencies and power
levels) in all channels and transfers it to the generator. The list is automatically updated and re-transferred
whenever the channel settings are changed.
The analyzer uses a trigger handshake mechanism in order to control the generator's list mode; see
Generator List Mode.
If the number of sweep points exceeds the maximum number of entries in the list (depending on the
generator type), the analyzer must interrupt the sweep in order to send a new list and complete the
stimulus information. This generally slows down the measurement.
Reference frequency
To ensure frequency accuracy and frequency stability in a test setup where different devices represent the
signal sources and receivers, it is generally advisable to use a common reference frequency. Accurate
frequencies are particularly important if external generators are used for measurements with narrow
measurement bandwidths.
A common reference frequency can be established in different ways:
Use the analyzer as master device: Set the analyzer to Internal reference frequency mode and
operate all other devices in external reference mode using the reference clock signal from the 10
MHz REF connector on the analyzer's rear panel.
Use another device as master: Set the analyzer to External reference and synchronize it (and all
other devices) to the master's reference clock signal, fed in at the 10 MHz REF connector on the
analyzer's rear panel.
The 10 MHz REF settings in the Add External Generator dialog are generator-specific and not overwritten
by a change of the global Internal Reference / External Reference settings.
SYSTem:COMMunicate:RDEVice:GENerator<gen_no>:DEFine
SYSTem:COMMunicate:RDEVice:GENerator<gen_no>:DELete
Matrix Configuration
Configures and opens/closes a LAN connection to a switch matrix/multiport test set R&S ZV-Z81/82/83.
Switch matrices R&S ZV-Z81/-Z82 and multiport test set R&S ZV-83
The purpose of a switch matrix or a multiport test set is to extend the number of test ports.
E.g. the multiport test set R&S ZV-Z83 multiplies the number of network analyzer ports by four. If it is
connected to a four-port network analyzer, the test set provides 16 "output" ports numbered A1, A2, A3,
A4, B1 ... D4.
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