Rohde & Schwarz SMY01 9KHz to 1.04GHz Signal Generator

The Rohde & Schwarz SMY01 is a synthesized signal generator covering 9 kHz to 1.04 GHz, engineered for component testing, receiver measurements, and general-purpose laboratory and production applications. It delivers output levels from −140 dBm to +19 dBm with 0.1 dB resolution and frequency setting times under 60 ms. The instrument combines excellent signal quality - including SSB phase noise below −114 dBc at 1 GHz (20 kHz offset) and RF leakage under 0.1 µV - with integrated AM, FM, phase, and pulse modulation capabilities.

A built-in modulation generator (1 Hz to 500 kHz) supports internal and external modulation modes, making it suitable for receiver characterization, transceiver alignment, and audio frequency applications across laboratory, production, and service environments.

Technical Specifications

• Frequency range: 9 kHz to 1.04 GHz


• Frequency resolution: 1 Hz


• Frequency error: Less than 5 × 10⁻⁵


• Setting time: <60 ms (manual); <25 ms (IEC/IEEE bus)


• Output level range: −140 dBm to +19 dBm (0.1 dB resolution); up to +25 dBm with Option SMY-B40


• Level accuracy: Better than ±1 dB


• Level flatness: <1 dB at 0 dBm


• Output impedance: 50 Ω


• VSWR: <1.5 (≤1.04 GHz); 1.04 GHz)


• RF overload protection: 30 W; DC protection to 1 mWs or 150 V peak (pulse width <10 µs)

Key Features

• SSB phase noise: <−114 dBc at 1 GHz, Δf = 20 kHz


• Spurious rejection: High rejection for in-channel and blocking measurements


• Low residual FM for S/N measurements


• Low harmonic distortion for FM stereo receiver testing


• RF leakage: <0.1 µV


• Modulation generator: 1 Hz to 500 kHz with 100 kΩ or 600 Ω input impedance options


• AM: 0–100% depth, internal and external AC/DC modes


• FM: Up to 20 MHz deviation (1040–2080 MHz range); 2 MHz bandwidth for FSK/telemetry


• Phase modulation: Combinable with AM, FM, and pulse modulation


• Modulation generator can operate independently for AF signal generation

Typical Applications

• Component and transceiver testing


• Receiver sensitivity and selectivity measurements


• Audio frequency response verification


• FSK and telemetry signal simulation


• VCO characterization

Compatibility & Integration

• IEC/IEEE bus control with <25 ms command response


• Optional enhanced frequency stability (SMY-B1)


• 50 Ω terminated output suitable for standard test environments