Instrument Function
R&S
®
SMBV100A
160Operating Manual 1407.6062.32 ─ 08
Source - Reference Oscillator
Selects the source of the reference frequency.
"Internal"
The internal reference signal of 10 MHz is used, comprising either the
calibrated or a user-defined adjustment value.
"External"
An external reference signal is used. The frequency of the external ref-
erence signal must be selected under "External Reference Fre-
quency".
An external reference signal is required for each slave instrument con-
figured to work in a synchronous mode (see chapter 5.8.2.4, "Synchro-
nous Signal Generation", on page 277).
SCPI command:
[:SOURce]:ROSCillator:SOURce on page 692
Deactivate RF Output - Reference Oscillator
Determines if the RF output is switched off in case of a missing external reference signal
for selection external source.
If enabled, this setting ensures that no improper RF signal due to the missing external
reference signal is output and used for measurements.
In addition to the error message "Ext Ref missing", the information "RF output deactiva-
ted" is indicated.
This setting is not influenced by a reset.
SCPI command:
[:SOURce]:ROSCillator:EXTernal:RFOFf[:STATe] on page 691
External Reference Frequency
Selects the frequency of the external reference signal. You can select an external refer-
ence signal having a frequency of 5 MHz or 10 MHz; however, for 5 MHz the version of
the RF board must be at least 1406.7220 or higher, see chapter 5.2.3.2, "Hardware Con-
fig", on page 107.
SCPI command:
[:SOURce]:ROSCillator:EXTernal:FREQuency on page 690
Synchronization Bandwidth - RF Signal
(Source External only)
Selects the synchronization bandwidth for an external reference signal. The wideband
setting is provided for using very good reference sources of high spectral purity.
"Narrow"
Synchronization bandwidth is 1 Hz.
"Wide"
Synchronization bandwidth is 750 Hz.
SCPI command:
[:SOURce]:ROSCillator:EXTernal:SBANdwidth on page 691
Adjustment Active - Reference Oscillator
Selects adjustment mode.
RF Signal and Analog Modulations - RF Block
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