Rohde & Schwarz SMG 100KHz-1GHz Signal Generator with Pulse Modulation
Rohde & Schwarz Signal Generators. Resolution: 1 Hz, Power range: –140 dBm to +13 dBm, Accuracy: ±1.5 dB.
- Model
- Rohde & Schwarz SMG
- Calibration
- Available on request
- Price
- $630
- Status
- In stock
- RFQ ref
- SMG
This unit
The Rohde & Schwarz SMG is a compact signal generator spanning 100 kHz to 1 GHz, engineered for component testing, receiver validation, and signal simulation. It delivers pulse modulation with exceptional on/off ratios exceeding 70 dB, standard AM/FM/phase and FSK capabilities, and phase noise of typically –124 dBc at 1 GHz with 20 kHz offset. The instrument combines high spectral purity, fast frequency switching, and output control from –140 dBm to +13 dBm, making it suitable for demanding RF/microwave labs and production environments.
Technical Specifications
Frequency- Range: 100 kHz to 1 GHz
- Resolution: 1 Hz
- Switching time: 15 ms
- Time base stability: 0.000002 /yr
- Reference: Internal 10 MHz or 5 MHz crystal oscillator; optional OCXO (SMG-B1) available
- External reference input: 10 MHz or 5 MHz Output
- Power range: –140 dBm to +13 dBm
- Accuracy: ±1.5 dB
- Impedance: 50 Ohm
- Level switching time: 25 ms
- Overload protection: 50 W maximum permissible RF power Modulation
- Pulse modulation: External TTL-compatible input; on/off ratio >70 dB (typically >80 dB); rise/fall times 10–90% typically 20 ns above 200 MHz; PRF 0–10 MHz
- Standard modes: AM, FM, phase, FSK, two-tone
- Internal modulation source (option SMG-B2): AF Synthesizer, 10 Hz to 100 kHz Spectral Performance
- Spurious signals: <−30 dBc (SMGL, level ≤27 dBm)
- Harmonics: <−30 dBc (SMGL, level ≤27 dBm)
- Phase noise: –124 dBc @ 1 GHz, 20 kHz offset
Key Features
- TTL pulse modulation with 70+ dB blanking ratio and 20 ns edge speeds
- N-type 50 Ohm RF output with integrated overload protection
- Frequency resolution to 1 Hz; 15 ms carrier switching
- Low phase noise and spurious content for precision measurement
- Programmable sweep modes: auto, linear, manual, single
- Test pattern storage for up to 5 configurations
Typical Applications
- RF component and subsystem characterization
- Receiver sensitivity and selectivity testing
- Signal simulation for system validation
- Pulse modulation studies and radar signal generation
Compatibility & Integration
- IEC bus remote control interface
- Modulation inputs: BNC connectors (100 kΩ or 600 Ω input impedance)
- AF output available with SMG-B2 option
- 19" rack-mount adapter option
- Optional OCXO (SMG-B1) for improved frequency accuracy
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 100 kHz to 1 GHz | Power Range (dBm): –140 dBm to +13 dBm |
Rohde & Schwarz SMG — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Rohde & Schwarz SMG. 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 SMG 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 SMG price
This Rohde & Schwarz SMG is listed at $630. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Rohde & Schwarz SMG calibration cost
NIST-traceable calibration for the Rohde & Schwarz SMG 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 →
