Rohde & Schwarz R&S SMW200A - Control and Operation of External Instruments; Prerequisites for Control of External Instruments from the R&S SMW; Test Setups

Multi-Instrument Setups
R&S
®
SMW200A
667User Manual 1175.6632.02 ─ 30
10.5 Control and Operation of External Instruments
In test scenarios that require more than two RF signals, the I/Q analog and digital out-
put signal can be routed to and processed by external instruments. Typically, the gen-
erated I/Q streams are further processed by R&S SGT or R&S SGS.
Other applications like the radar echo generation or the generation of WLAN 802.11ad
signals at 58.3 GHz require connected R&S FSW or R&S SZU.
The R&S SMW provides all settings required to configure the output connectors, to
establish the connections to the connected RF instruments and to control them. The
settings are grouped in the "System configuration" > External RF and I/Q dialog. In this
dialog, you find an overview of all available I/Q input and output connectors and config-
ure the connection to the external instruments.
Once the connection is established, the R&S SMW acts as a primary instrument and
controls the setup-related parameters of any connected further processing external
instrument. Among others, this applies to connected R&S SGT, R&S SGS (also in
combination with R&S SGU), R&S SZU, R&S FSW.
10.5.1 Prerequisites for Control of External Instruments from the
R&S SMW
Required are the following connections between the R&S SMW and the external instru-
ments:
●
Physical remote control connection over LAN or USB
The remote control connection to the external instruments must be in status con-
nected.
See Chapter 4.4.3, "External RF and I/Q Settings", on page 135.
●
Physical signal connection for the digital or analog I/Q signal
●
For the most test setups, the instruments must use a common reference fre-
quency signal.
Suitable reference frequency signal sources are:
– An external common reference source
– The distributed reference frequency of the R&S SMW.
10.5.2 Test Setups
The test setup depends on the external instrument and the used I/Q output signal (digi-
tal, analog single-ended or analog differential).
See for example Figure 4-22, Figure 4-24, Figure 4-26 and Figure 4-33.
See also Chapter 4.1.2, "From a Test Scenario to the Required System Configuration",
on page 108.
Control and Operation of External Instruments