The Rohde & Schwarz SML01 is a highly reliable, general-purpose RF signal generator designed for versatile applications in development, servicing, and production. Part of the R&S SML family, this compact 2 HU instrument offers high level accuracy, fast switching times, and comprehensive modulation capabilities including AM, FM, φM, and optional pulse modulation, all with a standard 3-year calibration cycle.
Specifications
Frequency
| Parameter | Value |
|---|---|
| Minimum Frequency | 9 kHz |
| Maximum Frequency | 1.1 GHz |
| Frequency Resolution | 0.1 Hz |
Output
| Parameter | Value |
|---|---|
| Maximum Output Power | +13 dBm |
| Output Power Range | -140 dBm to +13 dBm |
| Phase Noise | -128 dBc/Hz at 20 kHz offset, 1 GHz carrier |
Modulation
| Parameter | Value |
|---|---|
| Modulation | AM, FM, φM, Pulse (optional) |
| Sweep Modes | Digital frequency and level sweep |
| AM Distortion | <1% at 1 kHz (m = 30%), <2% at 1 kHz (m = 80%) |
| FM Distortion | <0.1% (at 1 kHz, 40 kHz deviation) |
General
| Parameter | Value |
|---|---|
| Reference Oscillator | 10 MHz (internal) |
| Interfaces | GPIB (IEEE 488.2), RS-232 |
| Display | Backlit LCD |
| Save/Recall Memory | 50 complete instrument settings |
| Display Resolution | 240 × 64 pixels |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 V to 240 V AC, 47 Hz to 440 Hz |
| Dimensions (W×H×D) | 427 mm × 88 mm × 450 mm |
| Weight | < 8.5 kg |
Frequency Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 9 kHz to 1.1 GHz |
| Frequency Switching Speed | < 10 ms |
| Aging Rate (Internal Reference) | 1 x 10^-6 / year |
| Temperature Stability (Internal Reference) | 2 x 10^-6 (0 °C to 55 °C) |
Amplitude Specifications
| Parameter | Value |
|---|---|
| Maximum Output Level | +13 dBm |
| Minimum Output Level | -140 dBm |
| Amplitude Resolution | 0.1 dB |
| Amplitude Accuracy | < 0.5 dB (at levels > -120 dBm) |
| RF Output Impedance | 50 Ω |
| Attenuator Type | Electronic |
Spectral Purity
| Parameter | Value |
|---|---|
| SSB Phase Noise | -128 dBc (1 Hz) at f = 1 GHz, 20 kHz offset |
| Harmonics | < -30 dBc |
| Non-Harmonics (Spurious) | < -70 dBc (carrier > 200 MHz, > 10 kHz offset) |
| Residual FM | < 2 Hz (RMS, at 1 GHz, 300 Hz to 3 kHz bandwidth) |
| Residual AM | < 0.02% (RMS, 300 Hz to 3 kHz bandwidth) |
| Wideband Noise | <-140 dBc/Hz (at >2 MHz offset, 1 GHz carrier, +10 dBm level) |
Analog Modulation
| Parameter | Value |
|---|---|
| AM Depth Range | 0% to 100% |
| AM Rate Range | DC to 50 kHz |
| FM Maximum Deviation | up to 400 kHz (carrier dependent) |
| FM Rate Range | DC to 2 MHz |
| Phase Modulation Maximum Deviation | up to 20 rad (carrier dependent) |
| Phase Modulation Rate Range | DC to 100 kHz |
System Connectivity and Interfaces
| Parameter | Value |
|---|---|
| RF Output Connector | N-type (female), front panel |
| GPIB Interface | IEEE 488.2 compliant |
| RS-232 Interface | Serial port |
Physical and Environmental Specifications
| Parameter | Value |
|---|---|
| Operating Temperature Range | 0 °C to +55 °C |
| Rack Unit Height | 2 HU |
Physicaland Environmental Specifications
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 °C to +70 °C |
Power Requirements
| Parameter | Value |
|---|---|
| Power Consumption | approx. 80 W |
Compliance and Standards
| Parameter | Value |
|---|---|
| Calibration Cycle | 3 years |
Hardware and Software Options
| Parameter | Value |
|---|---|
| Option SML-B3 | Pulse Modulator |
| Option SML-B5 | Stereo Coder with analog and digital audio inputs |
| Option SML-B1 | OCXO Reference Oscillator (High Stability) |
LF Generator
| Parameter | Value |
|---|---|
| LF Generator Frequency Range | 0.1 Hz to 1 MHz |
| LF Generator Frequency Resolution | 0.1 Hz |
| LF Generator Output Voltage Range | 1 mV to 1 V (peak, open circuit) |
| LF Generator Output Impedance | approx. 10 Ω |
| LF Output Connector | BNC female (front panel) |
| LF Generator Waveforms | Sine |
Overload Protection
| Parameter | Value |
|---|---|
| Max. Reverse Power | 50 W (from 50 Ω source) |
| Max. Reverse DC Voltage | 35 V |
RF Output
| Parameter | Value |
|---|---|
| RF Output VSWR | < 1.5 (f ≤ 1 GHz), < 1.8 (1 GHz < f ≤ 1.1 GHz) for output levels ≤ 2 dBm |
Interfaces & Control
| Parameter | Value |
|---|---|
| Command Set | SCPI |
Options
| Parameter | Value |
|---|---|
| Option SML-B19 | Rear panel RF and LF connectors |
Output Level
| Parameter | Value |
|---|---|
| Level Switching Speed | <10 ms |
Sweep
| Parameter | Value |
|---|---|
| Sweep Step Time Range | 1 ms to 10 s |
Reference Frequency
| Parameter | Value |
|---|---|
| External Reference Input Frequency | 10 MHz |
| External Reference Output Frequency | 10 MHz |
Pulse Modulation (Option SML-B3)
| Parameter | Value |
|---|---|
| Pulse Modulator Rise/Fall Time (Option SML-B3) | <20 ns |
| Pulse Modulator ON/OFF Ratio (Option SML-B3) | >80 dB |
Power Supply
| Parameter | Value |
|---|---|
| AC Supply Voltage | 100 V to 240 V AC |
| AC Supply Frequency | 47 Hz to 440 Hz |
Technology
RF Signal Generator
Applications
Development, servicing, and automatic test systems (ATE)