Instrument Function
R&S
®
SMBV100A
189Operating Manual 1407.6062.32 ─ 08
The RF input is activated when the overload protection is reset.
SCPI command:
:OUTPut<hw>:PROTection:TRIPped on page 484
:OUTPut<hw>:PROTection:CLEar on page 484
:OUTPut<hw>[:STATe] on page 484
5.4.12 Analog Modulations
5.4.12.1 Overview
The R&S SMBV provides the analog modulations amplitude modulation (AM), frequency
modulation (FM), phase modulation (PhiM) and pulse modulation (PM). In addition, the
RF signal can be modulated with internal modulations waveforms, e.g. sine waves and
rectangular signals.
Amplitude, frequency and phase modulation are available for the basic unit (R&S SMBV
+ frequency option R&S SMBV-B10x) without additional equipment options. A standard
LF generator is provided for internal modulation.
Pulse modulation and a pulse generator are provided by options R&S SMBV-K22, Pulse
Modulator and R&S SMBV-K23, Pulse Generator, respectively.
Settings for the modulation are made in separate modulation menus. These menus can
be accessed in the block diagram by way of the "RF/A Mod" function block, or by means
of the menu with the same name which is opened using the MENU key.
Enabling/Disabling Analog Modulations using the MOD On/Off Key
The MOD ON/OFF key switches the modulations on and off.
MOD ON/OFF
Press the MOD ON/OFF key to enable/disable analog modulations.
Pressing the key again restores the status that was active before the last switch-off. "MOD
OFF" is displayed in the info line of the header next to the "Level" field.
SCPI command:
[:SOURce<hw>]:MODulation[:ALL]:STATe on page 669
Modulation Sources
The following modulations use internal and external modulation sources:
●
Amplitude modulation
●
Pulse modulation
●
Frequency modulation
●
Phase modulation
RF Signal and Analog Modulations - RF Block
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