The manual for the Test Receiver ESH 3 provides detailed instructions for setup, operation, and troubleshooting, including its use in measuring and evaluating AM, PM, FM signals, and electromagnetic interference across a range of 8 kHz to 30 MHz. It covers features such as automatic frequency scanning, selective voltage measurements, and the use of various probes and antennas for precise field strength and interference measurements, adhering to standards like CISPR, VDE, and FCC.
Manual Overview
The Test Receiver ESH 3 is designed for precise measurement and evaluation of electromagnetic signals and interference across a frequency range of 8 kHz to 30 MHz. It supports AM, PM, FM, and various interference measurements, adhering to CISPR, VDE, FCC, MIL, and VG standards. The device features automatic frequency scanning, programmable measuring times, and selectable demodulation modes, enhancing its utility in laboratory and field environments. Troubleshooting involves checking for RF input overloads and ensuring correct demodulation mode settings. Error diagnostics are facilitated by automatic linearity tests and indication of overload conditions. Calibration is achieved using an internal generator outputting 80 dBuV, suitable for amplifier and filter frequency response measurements. The ESH 3 provides digital and analog outputs, including a 75-MHz IF output for spectrum analysis. It supports remote control via an IEC/IEEE-bus interface, allowing integration into automated test systems. Accessories such as RF Current Probes and Active Probes expand its measurement capabilities, particularly for high-impedance and RF current measurements.
Quick Issues Covered
- Diagnose RF input overload with automatic linearity test.
- Calibrate using built-in generator for frequency response checks.
- Error codes for programmable frequency scanning and data logging.
Overview
The Test Receiver ESH 3 is designed for demodulating and measuring various signal types, including AM, PM, FM, and single-sideband signals, as well as sinusoidal and impulsive interference over a frequency range of 8 kHz to 30 MHz. It is suitable for field strength measurements, radio interference measurements according to CISPR, VDE, FCC, MIL, and VG regulations, and radiomonitoring. The device offers high overload capacity, wide dynamic range, and numerous measuring and evaluation capabilities. It can be used in laboratory and test departments for selective voltage measurements and is compatible with automatic test systems. The ESH 3 features automatic frequency scanning, digital data output, and remote control capabilities, making it versatile for various applications in electromagnetic compatibility (EMC) and radiomonitoring.
Specifications
- 8 kHz to 30 MHz
- -30 to +137 dBuV
- Field strength measurements
- Radio interference (EMI) measurements
- Interference (EMI) measurements
- Radiomonitoring
- Selective voltage measurements
- Automatic frequency scanning
- Four switchable IF bandwidths: 0.2/0.5/2.4/10 kHz
- Average, peak and pulse weighted indication
- Switch-selected demodulation modes
- Broadband 75-MHz IF output
- Narrowband 30-kHz IF output
- AM and FM demodulator outputs
- Remote control
- Digital measurement of modulation depth, frequency offset and deviation
- Peak-value indication
- Average-value indication
- CISPR indicating mode
- Programmable measuring times
- Automatic selection of weighting to CISPR
- 60-dB operating range
- 20-dB operating range
- Selectable logarithmic frequency scale
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Refer to the PDF for details.
Operation
The Test Receiver ESH 3 is designed for a variety of applications including field strength measurements, radio interference measurements, and radiomonitoring. It can demodulate and measure AM, PM, and FM signals, as well as sinusoidal and impulsive interference over the range of 8 kHz to 30 MHz. The device offers high overload capacity, wide dynamic range, and excellent selectivity, making it suitable for selective voltage measurements and two-part measurements in automatic test systems. It can be used in laboratories, test departments, and service workshops without accessory units, although certain probes are available for specific measurements.
The ESH 3 features automatic frequency scanning with selectable start and stop frequencies and step sizes, and it can record measured results on a printer or an XY recorder. It measures voltage, field strength, current, pulse spectral density, and two-port attenuation, with respective physical unit conversion factors for probes and test antennas. The device provides digital data output in various units and has a high overload capacity with automatic indication when overdriven.
The ESH 3 includes a calibration generator for measuring frequency response and attenuation, and it supports remote frequency measurements. It offers four switchable IF bandwidths and various demodulation modes with analog and digital data output. The device has remote control capabilities through an IEC(IEEE)-bus interface and supports recording of results for harmonics, spurious signals, and noise.
In interference measurements, the ESH 3 offers programmable automatic frequency scanning and data logging, with direct control of a printer or XY recorder. Accessories are available for measuring interference voltages, currents, and field strengths according to applicable standards. The device supports peak-value and average-value indication with programmable measuring times and automatic selection of weighting according to CISPR standards.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Refer to the PDF for details.
Download MANUAL Operation manual (PDF – 4.6 MB)
Rohde-Schwarz ESH3 Operating Manual: Guide for setup, operation, and troubleshooting procedures. PDF size: 4.6 MB.
- Brand: Rohde-schwarz-esh3-operating
- Model: MANUAL
- Type: Operation manual
- File size: 4.6 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 ESH3 Operating Manual Overview
The Rohde-Schwarz ESH3 is a high-performance handheld spectrum analyzer designed for field and laboratory use. It provides precise frequency analysis and signal measurement across a wide frequency range, making it an essential tool for RF engineers, technicians, and communication specialists. This device is ideal for troubleshooting, maintenance, and optimization of wireless communication systems, radar, and other RF applications.
Main Features and Specifications
- Frequency range: 9 kHz to 3 GHz
- High sensitivity with low noise floor
- Wide dynamic range for accurate signal analysis
- Fast sweep speed for real-time measurements
- Battery-powered for portable operation
- Clear, easy-to-read LCD display
- Multiple measurement modes including amplitude, frequency, and modulation analysis
- Robust, ergonomic design for field durability
Basic Usage and Operation Tips
Before starting measurements, ensure the device is fully charged or connected to a power source. Power on the ESH3 and allow it to complete its self-test. Select the desired frequency range and measurement mode using the intuitive control panel. Connect the input signal via the appropriate RF connector. Adjust the reference level and resolution bandwidth for optimal signal display. Use the marker functions to identify specific frequencies and signal amplitudes. Regularly calibrate the analyzer to maintain measurement accuracy.
Troubleshooting and Maintenance
If the device fails to power on, check the battery charge or power connection. For erratic readings, verify all cable connections and ensure the input signal is within the specified range. Clean the connectors regularly to avoid signal degradation. Avoid exposing the analyzer to extreme temperatures or moisture. If calibration issues arise, refer to the calibration procedures in the manual or contact authorized service centers for assistance.
Safety Reminder
Always follow proper safety protocols when operating the Rohde-Schwarz ESH3. Avoid direct exposure to high-power RF signals to prevent damage to the device and personal injury. Use the device within the specified environmental conditions and handle it carefully to avoid electrical shock or equipment damage. Refer to the safety instructions in the manual before use.