The Rohde & Schwarz SMT02 is a high-performance analog RF signal generator covering a frequency range of 5 kHz to 1.5 GHz. Designed to handle the complete spectrum of conventional receiver measurements, EMS testing, and specialized avionics/stereo application testing, the SMT02 is renowned for its exceptional signal quality, precise level accuracy, and versatile modulation modes, including broadband FM, phase modulation, and pulse modulation.
Specifications
Frequency
| Parameter | Value |
|---|---|
| Minimum Frequency | 5 kHz |
| Maximum Frequency | 1.5 GHz |
| Frequency Resolution | 0.1 Hz |
Output
| Parameter | Value |
|---|---|
| Maximum Output Power | +13 dBm |
| Output Power Range | -144 dBm to +13 dBm |
Modulation
| Parameter | Value |
|---|---|
| Modulation | AM, FM, Phase Modulation (φM), Pulse Modulation |
| Sweep Modes | RF, LF, Level |
General
| Parameter | Value |
|---|---|
| Reference Oscillator | 10 MHz (TCXO standard, aging < 1 ppm/year; Option SM-B1 OCXO, aging < 1 x 10^-9/day) |
| Interfaces | GPIB (IEEE 488.2), RS-232 |
| Display | Large, backlit LCD |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 V to 240 V AC, 47 Hz to 440 Hz |
| Dimensions (W×H×D) | 435 mm × 147 mm × 460 mm |
| Weight | 16 kg |
Frequency Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 5 kHz to 1.5 GHz |
| Internal Reference Frequency | 10 MHz |
Amplitude Specifications
| Parameter | Value |
|---|---|
| Minimum Output Power | -144 dBm |
Analog Modulation
| Parameter | Value |
|---|---|
| FM DC Carrier Accuracy | High carrier frequency accuracy maintained in FM DC mode |
| Modulation Modes | AM, FM, Phase Modulation (φM), Pulse Modulation |
Sweep and Operating Modes
| Parameter | Value |
|---|---|
| External Frequency Response Compensation | Programmable level correction |
Hardware and Software Options
| Parameter | Value |
|---|---|
| Stereo Generator Option | SM-B6 (for measurements on FM sound broadcast transmitters/receivers) |
System Connectivity and Interfaces
| Parameter | Value |
|---|---|
| RF Shielding | Minimum RF leakage design |
| Display Type | Large, backlit LCD |
Spectral Purity
| Parameter | Value |
|---|---|
| Harmonics | <-30 dBc (for output levels < +10 dBm) |
| Non-harmonics | <-70 dBc (at >10 kHz offset, f < 1.5 GHz) |
Amplitude Modulation
| Parameter | Value |
|---|---|
| AM Depth Range | 0% to 99% |
| AM Resolution | 0.1% |
| AM Distortion | <1% (at 1 kHz, m = 30%) |
Level & Output
| Parameter | Value |
|---|---|
| Level Resolution | 0.1 dB |
| Level Uncertainty | <1 dB (for levels > -127 dBm) |
Internal Modulation Generator
| Parameter | Value |
|---|---|
| Internal LF Generator Frequency Range | 0.1 Hz to 500 kHz |
| Internal LF Generator Resolution | 0.1 Hz |
RF Output
| Parameter | Value |
|---|---|
| Output Impedance | 50 Ω |
| VSWR | < 1.5 (for RF levels < 0 dBm) |
| Reverse Power Protection | 50 W (from 50 Ω source), 35 V DC max. |
Level
| Parameter | Value |
|---|---|
| Level Switching Time | < 25 ms |
Environmental
| Parameter | Value |
|---|---|
| Operating Temperature Range | 0 °C to +55 °C |
| Storage Temperature Range | -40 °C to +70 °C |
Power
| Parameter | Value |
|---|---|
| Power Consumption | 75 VA (typical), 150 VA (maximum) |
Phase
| Parameter | Value |
|---|---|
| Phase Offset Adjustment | Adjustable in 1° steps |
Reference Oscillator
| Parameter | Value |
|---|---|
| Reference Frequency Temperature Stability | < 2 × 10^-6 (0 °C to +55 °C) |
| Reference Frequency Aging | < 1 × 10^-6 / year (standard) |
| Option SMT-B1 Reference Aging | < 1 × 10^-9 / day, < 1 × 10^-7 / year |
Technology
Analog RF Signal Generation
Applications
Analog receiver measurements, EMS measurements, avionics and stereo broadcast transmitter/receiver testing