Rohde & Schwarz SMHU58 High Accuracy Signal Generator
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Rohde & Schwarz SMHU58 high-accuracy RF signal generator with 100 kHz to 4.32 GHz range and 0.1 Hz resolution for advanced receiver and LO applications.
Product details
| Model | SMHU58 (0835.8011.58) |
| Manufacturer | Rohde & Schwarz |
| Category | RF & Microwave Signal Generators |
| Availability | Made to order |
Description
Overview
The Rohde & Schwarz SMHU58 is a high-performance RF signal generator designed for demanding test and measurement applications. With frequency coverage to 4.32 GHz and exceptional spectral purity, the SMHU58 is ideal for receiver testing, local oscillator applications, and noise measurement systems where signal integrity is critical.
Key Features
- Frequency range: 100 kHz to 4320 MHz with 0.1 Hz resolution
- Frequency setting time: below 10 ms
- Fast sweep mode: up to 200 user-defined frequencies in less than 1 ms per setting
- Exceptional spectral purity for adjacent-channel and out-of-channel measurements
- FM modulation: DC to 1 MHz with minimal frequency offset in FM DC mode
- AM modulation: DC to full modulation frequency range with flat frequency response for VOR/ILS receiver testing
- Pulse modulation: 20 ns rise/fall times (typical <10 ns for frequencies >200 MHz) with 80 dB on/off ratio
- Phase offset: adjustable in 1° steps
Applications
- Receiver selectivity and sensitivity testing
- Low-noise local oscillator reference applications
- Reference signal for noise measurement systems
- Telemetry and satellite communications testing
- Radar and microwave link system testing
Specifications
| Frequency | The frequency can be set with a resolution of 0.1 Hz over the entire range, and this is sufficient even for measurements on extremely narrowband DUTs. Both instruments supply frequencies down to 1 kHz. The frequency setting time is below 10 ms. In the fast mode up to 200 user-defined frequencies can be handled by means of a trigger signal or by memory sweep in less than 1 ms per setting. |
| Spectral Purity | R&S®SMGU/SMHU fulfill requirements for selectivity measurements on top-class receivers. Signals of extremely high spectral purity afford critical adjacent-channel, in-channel and out-of-channel measurements with a wide tolerance margin. Phase noise remains low right up to the carrier. R&S®SMGU/SMHU are therefore ideal for LO applications or as a low-noise reference in noise measurement systems. |
| Frequency Modulation | The FM modulation frequency range extends from DC to 1 MHz. In FM DC mode a high carrier-frequency accuracy is attained. The frequency offset occurring with FM DC selected is extremely small. |
| Amplitude Modulation | The whole of the modulation frequency range can be used down to carrier frequencies of less than 100 kHz. The minimal phase shift at 30 Hz (AM DC) and a flat frequency response make for the precision amplitude modulation that is required for testing VOR/ILS navigation receivers. |
| Pulse Modulation | Rise/fall times of 20 ns (typ. <10 ns for frequencies >200 MHz) and an on/off ratio of 80 dB open up a wide range of possibilities for testing telemetry, microwave link, radar and satellite communications systems. |
| Digital and Analog Sweep | In addition to the digital, step-by-step sweep with presettable start and stop frequency, span, step width and step time, an analog frequency and level sweep is also provided. |
| Phase Offset | The phase of the RF output signal can be varied in steps of 1 using keyboard entry or the spinwheel. This makes it easier to adjust for phase quadrature during noise measurements and to investigate phase-critical components. |
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Rohde & Schwarz SMHU58 High Accuracy Signal Generator
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