Configuring the Signal in the RF Domain
R&S
®
SMW200A
446User Manual 1175.6632.02 ─ 16
Table 7-2: Reference frequency selection depending on the SSYN assembly version
SSYN assembly (latest version, part no.
1412.6667.02
SSYN assembly (predecessor, part no.
1141.4220.02)
The remote commands required to define the reference oscillator settings are descri-
bed in Chapter 13.18.16, "SOURce:ROSCillator Subsystem", on page 1103.
Source
Selects the reference frequency source.
"Internal"
Uses the internal reference oscillator, either with calibrated or a user-
defined adjustment value.
"External"
Uses an external reference signal.
The frequency of the external reference signal must be set with the
parameter "External Reference Frequency".
See "External Reference Frequency" on page 446
Remote command:
[:SOURce]:ROSCillator:SOURce on page 1104
Deactivate RF Output (if external reference is missing)
Turns off the RF output when the external reference signal is selected, but no signal is
supplied.
This function prevents that no improper RF signal due to the missing external refer-
ence signal is used for measurements. A message indicates that the RF output is
deactivated.
Remote command:
[:SOURce]:ROSCillator:EXTernal:RFOFf[:STATe] on page 1104
External Reference Frequency
Determines the frequency of the external reference signal.
The frequency values supported depend on the version of the installed SSYN assem-
bly.
Reference Oscillator
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