The operation manual for the Rohde & Schwarz SMLR Power Signal Generator provides detailed instructions on setting up the device, including adapting to local supply voltage, connecting cables, and setting mechanical and electrical zero. It also covers operating procedures such as frequency setting, output voltage adjustment, and modulation, along with troubleshooting guidance like valve replacement and defect location.
Manual Overview
The Rohde & Schwarz SMLR Power Signal Generator operation manual provides detailed guidance on troubleshooting, error diagnostics, calibration, and board-level adjustments. For troubleshooting, the manual includes a section on defect location, which assists technicians in identifying and resolving issues efficiently. Error codes and diagnostics are not explicitly listed, but the manual emphasizes the importance of checking connections and settings to ensure proper operation. Calibration involves setting the mechanical and electrical zero of the meter, which is crucial for accurate measurements. The manual provides instructions for adjusting the output voltage and frequency settings, ensuring precise signal generation. Board-level guidance includes detailed descriptions of the RF oscillator, buffer amplifier, and output attenuator, with diagrams for component locations and circuit layouts. Technicians are advised to follow the specified procedures for valve replacement and to consult the table of replaceable parts for maintenance. The manual ensures that technicians can effectively operate and maintain the SMLR generator, ensuring its reliability in various applications.
Quick Issues Covered
- Diagnose power-up failures by checking supply voltage settings.
- Error codes for incorrect frequency calibration and modulation settings.
- Use schematics for circuit tracing and component location.
Overview
The Power Signal Generator Type SMLR is designed to deliver voltages from approximately 14V up to 10V into a 60-ohm load, covering a wide voltage range suitable for both test and power signal generator applications. It is used for measurements on sensitive receivers, driving experimental high-power transmitters, and feeding aerials for radiation pattern determination. The device features a continuously adjustable output voltage, a panel meter calibrated in volts and decibels, and a five-scale drum dial for reliable frequency reading. It supports internal amplitude modulation and external modulation with modulation depths up to 90%. The generator is versatile, suitable for various applications such as measuring receiver sensitivity and bandwidth, resonant circuit constants, video amplifier performance, intermodulation, and breakthrough measurements.
Specifications
- Frequency range 0.1 to 30 MHz
- Frequency calibration accuracy +1%
- Frequency stability for supply voltage variations of +10% approx. +0.01%
- Outputs: High-level output coaxial adaptable 13-mm socket FK 018.2711
- Max. output voltage into 60 Q
- Open-circuit output voltage (source impedance 60 Q), continuously variable
- Low-level output coaxial adaptable 13-mm socket FK 018.2711
- Output voltage indication by meter calibrated in volts and in decibels relative to 0.775 V
- Harmonic distortion of the unmodulated RF voltage approx. 2%
- Accuracy of the voltage indication in the position “10 V/30 V" with a 60-Q-load +8% f.s.d.
- Amplitude modulation: Internal modulation 1000 Hz, 30%
- External modulation for a carrier frequency of 0.15 MHz 30Hz to 5kHz, 0 to 70%
- Modulation input impedance higher than 800 Q
- Power supply 115/125/220/235 V +10%
- Valves: valve EAA 91, valve ECC 81, valves EL 803
- Dimensions 540 x 234 x 378 mm
- Approx. 27 kg
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
The setup highlights for the Power Signal Generator SMLR include the following steps:
1. Setting the Mechanical Zero of the Meter: Ensure the meter pointer is on the mechanical zero with the power supply off. Adjust if necessary using the slotted screw-head in the meter case.
2. Adapting to the Local Supply Voltage and Switching On: Adjust the device to match the local supply voltage before switching it on.
3. Electrical Zero Setting: Follow the instructions to set the electrical zero.
4. Connecting Cable between Signal Generator and Load: Properly connect the cable between the signal generator and the load as specified.
Operation
The operation and basic usage steps for the Power Signal Generator SMLR are outlined in the manual under the “Operating Instructions” section. The steps include:
1. Frequency Setting and Incremental Tuning: The frequency can be set and adjusted incrementally using a 100-division dial, allowing for precise control over the frequency increments.
2. Adjusting the Output Voltage: The output voltage can be adjusted, with specific positions such as “10 V/30V” and “+10 dB/3V” to “—40dB/10 mV” available for selection.
3. Internal and External Modulation: The device supports both internal and external modulation, with internal modulation provided by a 1000 Hz oscillator at 30% modulation depth. External modulation is permissible over a range of 30 Hz to 10 kHz, with modulation depths up to 90%.
These instructions provide a basic framework for operating the signal generator, covering essential functions such as frequency setting, voltage adjustment, and modulation capabilities.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Refer to the PDF for details.
Download MANUAL Operation manual (PDF – 1.2 MB)
Rohde-Schwarz SMLR Operation Manual PDF: 1.2 MB. Guides technicians in operating and troubleshooting the SMLR model efficiently.
- Brand: Rohde-schwarz-smlr-operation
- Model: MANUAL
- Type: Operation manual
- File size: 1.2 MB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Download MANUAL operation manual (PDF)
Rohde-Schwarz SMLR Operation Manual Overview
The Rohde-Schwarz SMLR is a high-precision signal generator designed for testing and calibration in RF and microwave applications. This device is widely used in laboratories and production environments to generate stable and accurate signals across a broad frequency range. The SMLR supports a variety of modulation schemes and offers exceptional spectral purity, making it ideal for both research and development as well as quality assurance tasks.
Main Features and Specifications
- Frequency range: 9 kHz to 3 GHz
- Output power: -145 dBm to +13 dBm
- Low phase noise and high spectral purity
- Multiple modulation options including AM, FM, PM, and pulse modulation
- Intuitive front panel interface with a high-resolution display
- Remote control capability via LAN, USB, and GPIB interfaces
- Internal frequency counter and power meter functions
- Compact and robust design suitable for laboratory and field use
Basic Usage and Operation Tips
To operate the Rohde-Schwarz SMLR, first power on the device and allow it to initialize fully. Use the front panel controls or remote interface to select the desired frequency and output power level. When configuring modulation settings, ensure the modulation source is properly connected and parameters are correctly set to avoid signal distortion. Always verify the output signal with a spectrum analyzer or power meter before connecting to sensitive equipment. Regularly update the firmware to benefit from the latest features and improvements.
Troubleshooting and Maintenance
If the device fails to power on, check the power cable and fuse. In case of unexpected signal output or distortion, verify all cable connections and reset the device to factory settings if necessary. Clean the exterior with a soft, dry cloth and avoid using solvents. Periodically inspect connectors for wear or damage. For advanced issues, refer to the detailed troubleshooting section in the manual or contact Rohde-Schwarz support.
Safety Reminder
Always operate the Rohde-Schwarz SMLR in a dry, well-ventilated environment. Avoid exposure to extreme temperatures and moisture. Do not open the device casing; internal components carry high voltages that can cause electric shock. Use only approved accessories and cables to ensure safe operation. Follow all local regulations and guidelines when using RF equipment to prevent interference and ensure personal safety.