The Rohde & Schwarz SMR30 is a microwave signal generator spanning 10 MHz to 30 GHz, engineered for research, development, and production test environments requiring high spectral purity and low phase noise. The base platform delivers CW generation with pulse modulation and digital frequency sweep, expandable through optional modules to include AM/FM modulation, phase modulation, FSK, and ASK capabilities. Its crystal reference oscillator ensures frequency stability, while advanced fractional-N synthesis and microwave filtering deliver excellent harmonic suppression. High-precision, frequency-response-compensated level control operates across a dynamic range extending to –130 dBm with optional RF attenuators. The compact design supports both laboratory and field deployment.
Technical Specifications
Frequency Range: 10 MHz to 30 GHz; expandable to 0.01 GHz with optional SMR-B11 Frequency Extension
Frequency Resolution: 100.0 mHz standard; 0.1 Hz with optional SMR-B3 upgrade
Output Power: Greater than +9 dBm at 30/40 GHz; setting range extendable to –130 dBm with optional attenuators
Pulse Modulation: On/off ratio better than 80 dB; rise/fall time shorter than 12 ns; pulse widths down to 25 ns; optional SMR-B14 Pulse Generator for externally triggered single and double pulses up to 10 MHz
Sweep Modes: Digital frequency sweep with 10 ms minimum step time; 20 dB level sweep for compression testing; analog ramp sweep with minimum 600 MHz/ms sweep rate above 2 GHz
Optional Modulation: AM/FM/Scan via SMR-B5; phase modulation; FSK and ASK; all modes combinable for complex signal generation
Frequency Stability: Built-in crystal reference; optional OCXO Reference Oscillator (SMR-B1) for enhanced accuracy
Spectral Performance: Fractional-N divider synthesis for low SSB phase noise; modern microwave filters for harmonic suppression
– Key Features
• High-precision level control with frequency response compensation
• High-contrast LC display with user-assignable keys
• One-hand operation capability
• Online help with IEC/IEEE-bus command support
• Compact, lightweight construction
– Typical Applications
Component and subsystem characterization; amplifier and mixer compression testing; modulated signal generation; frequency sweep validation; pulse signal development.
– Compatibility & Integration
IEC/IEEE-bus control interface; optional modulation and synthesis upgrades; RF attenuator integration for extended dynamic range.
