Rohde & Schwarz SMB100A - Page 63

Getting Started
R&S
®
SMB100A
47Operating Manual 1407.0806.32 ─ 13
One of the following options must be installed.
●
R&S SMB-B101 (9 kHz to 1.1 GHz)
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R&S SMB-B102 (9 kHz to 2.2 GHz)
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R&S SMB-B103 (9 kHz to 3.2 GHz)
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R&S SMB-B106 (9 kHz to 6 GHz)
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R&S SMB-B112 (100 kHz to 12,75 GHz)
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R&S SMB-B112L (100 kHz to 12,75 GHz, without attenuator)
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R&S SMB-B120 (100 kHz to 20 GHz)
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R&S SMB-B120L (100 kHz to 20 GHz, without attenuator)
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R&S SMB-B140 (100 kHz to 40 GHz)
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R&S SMB-B140L (100 kHz to 40 GHz, without attenuator)
Instruments without step attenuator provide a restricted level range at the RF output.
Refer to the data sheet for detailed information.
You can additionally get the following options for 20 or 40 GHz instruments:
●
up to 20 GHz (R&S SMB-B120/-B120L)
– high output power option R&S SMB-B31
– low harmonic filter option R&S SMB-B25
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up to 40 GHz (R&S SMB-B140/-B140L)
– high output power option R&S SMB-B32
– low harmonic filter option R&S SMB-B26
See data sheet for detailed information.
Up-to-date information is available at R&S SMB homepage on the internet http://
www.rohde-schwarz.com/product/smb100a.html.
Mod Gen block
The internal modulation sources are configured in this block. Also, the "LF frequency
sweep" can be activated here.
An internal LF generator is available as the internal source for the analog modulations
AM, FM and PHiM. Available modulation shapes are sine and rectangle.
The internal modulation signals are provided at the LF output at the front of the instrument.
The LF output signal and the modulations sources for the analog modulations AM, FM
and PhiM can be selected independently from each other.
A pulse generator provides single and double pulse modulation with selectable pulse
widths and periods. Additionally, an option is available to generate pulse train signals.
The R&S SMB offers three different sweep types (frequency sweep, level sweep and LF
sweep) to be activated alternatively. Each type has 6 modes which differ with respect to
the sweep cycle mode (continuous, individual and step-by-step) and triggering mode
(automatic, internal and external). In the "Mod Gen" block, the LF sweep is configured.
Frequency and level sweep settings are accessed via the "RF" block.
The status display in the block shows whether LF generator and/or a sweep are active.
The selected internal LF generator and/or noise source are switched on or off with the
TOGGLE ON/OFF key.
Description of Individual Diagram Blocks