Instrument Function
R&S
®
SMC100A
121Operating Manual 1411.4060.32 ─ 09
See also Chapter 5.3.1.1, "RF Output", on page 120.
Remote command:
:OUTPut<hw>[:STATe] on page 267
RF Output State
Activates the RF output signal by selecting the RF checkbox in the "Configure" dialog
of the "RF" block.
Remote command:
:OUTPut<hw>[:STATe] on page 267
5.3.1.2 RF Signal Modes and Characteristics
The CW and Sweep modes are available for generating the RF signal.
●
CW
The RF signal is generated with the set frequency and level. This is the default
mode.
●
Sweep
The RF signal is generated as a sweep with the set parameters.
It is not possible to activate frequency, level and LF sweep simultaneously.
Instruments connected downstream can be taken into consideration when setting the
frequency and level by entering a frequency and/or level offset.
Automatic level control ("ALC") ensures maximum level accuracy.
User-specific lists which contain level correction values for any frequency range ("User
Correction") can be created to, for example, compensate the cable attenuation in a test
assembly setup.
The R&S SMC generates the RF signal in unmodulated or analog form. The signal
generator is equipped therefore with the following sources for analog modulations:
●
an internal LF generator
●
an internal pulse generator
●
the external modulation inputs MOD EXT and PULSE EXT.
An external trigger signal for the sweeps can be provided at the INST TRIG input.
The input REF IN is used to input an external instrument reference, and the output
REF OUT serves as the output of the reference frequency (internal or external).
5.3.2 RF Frequency
The value of the RF frequency is displayed in the header of the display ("Freq"). This
field provides the direct input of the RF frequency. Alternatively, you can enter the RF
frequency in the "Frequency/Phase" dialog.
RF Block
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