The Rohde & Schwarz SMP04 is a microwave signal generator delivering precision frequency synthesis across 2 GHz to 40 GHz, with optional extension down to 10 MHz. It combines Direct Digital Synthesis technology with output power ranging from -20 dBm to +12 dBm (depending on frequency band) and exceptional spectral purity—SSB phase noise below –105 dBc/Hz at 10 GHz offset by 10 kHz. The instrument supports broadband modulation across AM, FM, Pulse, Phase, FSK, and ASK modes, with optional precision FM/ΦM and pulse generator capabilities. Frequency setting time is <11 ms + 5 ms/GHz, and frequency resolution reaches 0.1 Hz. A built-in crystal reference provides 0.000001/yr timebase stability, with OCXO option available. Sweep functionality includes manual step, linear, and list modes. The instrument stores up to 50 complete setup configurations and operates with 50 Ohm output impedance. Harmonics suppress to <–30 dBc below 1.8 GHz and non-harmonics to <–60 dBc up to 20 GHz. Target applications span microwave component characterization, radar and communication equipment testing, and EMC validation in development and production environments.
Technical Specifications
• Frequency Range (Standard): 2 GHz to 40 GHz
• Frequency Range (with Option SMP-B11): 10 MHz to 40 GHz
• Frequency Resolution: 0.1 Hz
• Frequency Setting Time: <11 ms + 5 ms/GHz
• Output Power: +12 dBm (10 MHz to <2 GHz), +10 dBm (2 GHz to 18 GHz), +6 dBm (18 GHz to 20 GHz), +11 dBm (20 GHz to 33 GHz), +10 dBm (33 GHz to 40 GHz), +9 dBm (@40 GHz)
• Minimum Output Power: -20 dBm
• Output Level Resolution: 0.1 dB or 0.01 dB
• Output Impedance: 50 Ohm
• SSB Phase Noise: <–105 dBc/Hz at 10 GHz (10 kHz offset)
• Harmonics: <–30 dBc (<+0 dBm) for f <1.8 GHz
• Non-harmonics: <–60 dBc up to 20 GHz
• Output Accuracy: <±0.9 dB at 0 dBm (10 MHz to 40 GHz with precision attenuator option)
– Key Features
• Direct Digital Synthesis frequency synthesis
• Modulation modes: AM, FM (broadband to 5 MHz), Pulse, Phase (DC to 100 kHz), FSK (up to 1 MHz deviation), ASK
• Optional precision FM/ΦM modulator (Option SM-B5) for modulation to 1 MHz
• Optional pulse generator (Option SMP-B14)
• Built-in crystal reference oscillator; optional OCXO (Option SMP-B1)
• Timebase stability: 0.000001/yr
• Memory: 50 stored instrument setups
• Sweep modes: Step, Linear, List
• Autorun control for synchronous multi-instrument operation
– Typical Applications
• Microwave component and subsystem development
• Radar and communication system testing
• EMC testing and validation
• Production test routines
– Compatibility & Integration
50 Ohm output interface. Autorun facility enables synchronized operation with complementary test equipment.
