Multi-Instrument Setups
R&S
®
SMW200A
662User Manual 1175.6632.02 ─ 30
"Intern (Primary Instrument)"
The instrument uses its own LO frequency.
In a two-path instruments, the LOs of the two signal paths are cou-
pled, where the LO signal of the first path is fed to the LO of the sec-
ond one.
The block diagram indicates this connection, too.
"External Instrument"
The instrument acts as a secondary one regarding the LO frequency.
It receives the LO frequency from the instrument that acts as an LO
source in the setup.
The external LO signal is fed at the first signal path.
In a two-path instruments, the LOs of the two signal paths are cou-
pled, where the LO signal of the first path is fed to the LO of the sec-
ond one.
The block diagram indicates this connection, too.
Remote command:
:SCONfiguration:RFALignment:SETup:INFO:WIRing:LO:SOURce?
on page 943
LO Configuration > Wiring Constellation
Indicates the connection method used to distribute the LO frequency signal.
"Daisy Chain"
A connection scheme in which instruments are connected together in
sequence, i.e. an output of the first one is the connected to an input
of the second one, etc.
"Star"
A connection scheme for several instruments that consists of one pri-
mary instrument and several secondary instruments, all connected to
the primary one.
The LO signal of the primary instrument or from an external LO
source is split with a power combiner or splitter and fed to the secon-
dary instruments.
Remote command:
:SCONfiguration:RFALignment:SETup:INFO:WIRing:LO:CONStellation?
on page 943
Test Setup
Displays the cabling diagram fo the current setup.
The diagram is interactive. Click an element to access further settings.
Indicated are:
Primary instrument
The primary instrument, incl. alias name, serial number and number
of RF outputs.
The primary instrument is the upper most instrument displayed in
dark blue color. Click the block to open a dialog with its "Hostname /
IP Address" and for quick access to the RF Port Setup File Editor dia-
log ("Edit Setup").
Generating Phase-Coherent Synchronous and Aligned Signals
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