Rohde & Schwarz SM300 3GHz Signal Generator
The Rohde & Schwarz SM300 is a versatile 3 GHz signal generator suitable for a wide range of RF testing applications. It delivers high-performance signal generation with excellent signal quality and stability.
- Model
- Rohde & Schwarz SM300
- Calibration
- Available on request
- Price
- $2,570
- Status
- In stock
- RFQ ref
- SM300
This unit
The Rohde & Schwarz SM300 is a 3 GHz signal generator delivering analog and vector modulation capabilities for RF testing across laboratory, service, and production environments. It generates AM, FM, phase-modulated, and digitally modulated signals with I/Q vector modulation support up to 40 MHz bandwidth. The instrument combines precise frequency control, low phase noise, and configurable output levels from -127 dBm to +13 dBm, making it suitable for wireless standards validation, EMC compliance testing, and baseband signal integration.
Technical Specifications
Frequency Performance- RF range: 9 kHz to 3 GHz
- LF range: 20 Hz to 80 kHz
- Frequency resolution: 0.1 Hz
- Frequency setting time: <10 ms
- Phase noise (SSB): <-95 dBc (1 Hz) at 1 GHz, 20 kHz offset Output Characteristics
- Power range: -127 dBm to +13 dBm
- Level resolution: 0.1 dB
- Level uncertainty: -120 dBm)
- Level setting time: <200 ms Modulation & Signal Generation
- Analog modes: AM, FM, phase modulation
- Pulse modulation: supported
- Vector (I/Q) modulation: DC to 40 MHz bandwidth
- Internal modulation generator: 20 Hz to 80 kHz
- WCDMA test signals: ACLR (54–55 dB), EVM (3.3% typical)
- GSM signals: phase error 1.2° rms typical
- WLAN: IEEE 802.11b/g capable
- Frequency and level sweep with selectable steps
Key Features
- High-contrast TFT display: 320 × 240 pixels
- Compact form factor for desktop, portable, or 19-inch rack deployment
- USB host interface for PC connectivity and peripherals
Typical Applications
- WCDMA, GSM, and WLAN signal generation for wireless device validation
- EMC/RFI testing per EN 61000-4-3/6, MIL-STD-461E, ISO 11451/11452 (automotive, military, avionics)
Compatibility & Integration Works with Rohde & Schwarz baseband sources (AM300, AMIQ) for complex modulation generation.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 9 kHz to 3 GHz (RF) |
| 20 Hz to 80 kHz (LF) | Power Range (dBm) | '-127 dBm to +13 dBm |
Rohde & Schwarz SM300 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Rohde & Schwarz SM300. Calibration covers output frequency accuracy, output power level accuracy across the full frequency range, AM/FM/PM/pulse modulation accuracy, harmonic and spurious output levels, and phase noise floor verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Rohde & Schwarz SM300 faults: YIG oscillator failure (no output or loss of lock), step attenuator wear (output drops or steps at set attenuation), ALC loop failure (uncontrolled output power), I/Q modulator assembly failure. HP/Agilent 836xx series most common faults are YIG oscillator failure and step attenuator contact wear causing output steps or drops at specific attenuation settings. Keysight E4428C/E4438C units most commonly develop ALC loop failure and I/Q modulator assembly faults. YIG oscillator replacement and attenuator service are stocked repairs.
Rohde & Schwarz SM300 price
This Rohde & Schwarz SM300 is listed at $2,570. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Rohde & Schwarz SM300 calibration cost
NIST-traceable calibration for the Rohde & Schwarz SM300 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers output frequency accuracy, output power level accuracy across the full frequency range, AM/FM/PM/pulse modulation accuracy, harmonic and spurious output levels, and phase noise floor verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
