SMB-B120

The compact, versatile R&S®SMB-B120 RF and microwave signal generator with a frequency range up to 20 GHz provides outstanding spectral purity and high output power. In addition, it features easy operation, comprehensive functionality and low cost of ownership.

Key Facts
• Wide frequency range from 100 kHz to 20 GHz
• Excellent signal characteristics with low SSB phase noise of typ. -128 dBc (at 1 GHz, 20 kHz offset)
• High output power of typ. up to +27 dBm
• All important analog modulations with AM, FM/fM and pulse modulation supported
• Compact size with only two height units and low weight

Features & Benefits
All-purpose signal source
• Wide frequency range from 100 kHz to 20 GHz covering the main frequency bands for RF and microwave applications
• Frequency extension from 50 GHz to 110 GHz in combination with the R&S®SMZ frequency multiplier
• All important analog modulations with AM, FM/fM and pulse modulation supported
• Support of R&S®NRP-Zxx power sensors
• Reverse power protection for high operational reliability included as standard in the models up to 6 GHz (optionally available for the 12.75 GHz model)
• Intuitive user interface with graphical display of signal flow for easy operation
• Remote control via LAN, USB and GPIB including emulation modes for legacy instruments
• Low weight and compact design for a wide range of applications, including mobile applications

Best signal quality in the mid-range
• Very low SSB phase noise of typ. -128 dBc at 1 GHz and typ. -108 dBc at 10 GHz carrier frequency (20 kHz carrier offset, 1 Hz measurement bandwidth)
• Optional internal low harmonic filters for the 20 GHz and 40 GHz model to lower the harmonics to less than -50 dBc for frequencies above 150 MHz
• Innovative DDS-based synthesizer concept

High output power and wide level range
• High power over a wide frequency range
• Low level range down to -120 dBm (for instruments equipped with step attenuator) with no compromise in quality
• High harmonics suppression of < -30 dBc even at high output power

Ideal for production
• Wear-free electronic attenuator up to 12.75 GHz ensuring long life even in the case of heavy use in production
• High level accuracy and repeatability for high production yield
• Closed loop power control ensures highly accurate and very stable input power to the DUT irrespective of unwanted power drifts in the test setup (e.g. caused by a power amplifier in between the signal generator and the DUT)
• Short frequency and level setting times which can be further reduced in List mode
• Low power consumption

Testing of FM stereo and RDS receivers
• Optional stereo/RDS coder for the 1.1/2.2/3.2/6 GHz models
• Automatic synchronization of measurement results with the R&S®UPV or R&S®UPP audio analyzer
• Up to five different RDS sequences with up to 64 000 characters each
• Internal LF generator delivering sinusoidal signals at fixed or swept LF frequencies

Ready for aerospace and defense applications
• Optional pulse modulator with typ. > 90 dB ON/OFF ratio and rise/fall time of typ. < 5 ns and pulse generator with minimum pulse width of 10 ns for radar system testing
• Flexible generation of pulse trains for simulating complex pulse scenarios (optional)
• Wide temperature range of 0 °C to +55 °C and high permissible operating altitude of 4600 m for use even under extreme conditions
• Sanitizing of user data for secured areas
• High-quality shielding

Flexible service concept
• Servicing on-site or at a Rohde & Schwarz service center
• Built-in selftest of modules to support troubleshooting
• Complete calibration recommended only every three years