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R&S®ESL EMI test receiver 9kHz-6GHz economical and compact measurement receiver certification level

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EMI test receiver

Authentication level


  • Product Description
  • Selection
    • Brand: 罗德与施瓦茨
    • Commodity name: R&S®ESL EMI test receiver 9kHz-6GHz economical and compact measurement receiver certification level
    • Brand: Rohde & Schwarz

    In-depth Analysis of the R&S®ESL EMI Test Receiver: An Entry-Level Solution for Electromagnetic Compatibility Testing

    I. Product Positioning and Core Value

    R&S®ESL   is launched by Rohde & Schwarz entry-level, high-performance EMI test receiver ,specifically designed for small and medium-sized enterprises, educational institutions, and electromagnetic compatibility (EMC) pre-certification testing in the early stages of R&D. As the basic model of R&S®ESW/ESR ,it integrates the compliance testing capabilities of an EMI receiver with spectrum analysis functions, supporting 9 kHz to 6 GHz frequency coverage (3 GHz for the basic model, optionally expandable to 6 GHz) and 40 MHz real-time bandwidth ,meeting mainstream international standards such as CISPR 16-1-1, FCC Part 15, and CE RED. Its high cost-effectiveness and portable design ,is suitable for pre-testing of conducted/radiated interference in consumer electronics, industrial equipment, and wireless modules, helping users quickly locate EMI problems in the early stages of R&D and reduce the risk of certification failure.

    II. Core Technical Indicators and Performance Advantages

    Frequency and Bandwidth Performance
    • Frequency Range :9 kHz to 3 GHz/6 GHz (expandable to 6 GHz via optional add-on)
    • Real-time Bandwidth :40 MHz, supporting fast capture of transient signals (capture rate ≥100,000 times/second)
    • Resolution Bandwidth :Supports CISPR standards (200 Hz/9 kHz/120 kHz/1 MHz) and custom modes (10 Hz to 10 MHz continuously adjustable)
    Sensitivity and Dynamic Range
    • Displayed Average Noise Level (DANL) :-152 dBm (1 GHz, with preamplifier), meeting the measurement needs of low-to-medium power signals
    • Third-Order Intercept Point (TOI) :+18 dBm (1 GHz), supporting reliable measurements in moderate signal strength environments
    • Amplitude Accuracy :±0.5 dB (1 GHz), meeting the accuracy requirements of CISPR 16-1-1 for routine testing
    Functions, Features, and Usability
    • Dual-Mode Switching Design :Allows for free switching between EMI receiver mode (compliance testing) and spectrum analyzer mode (signal analysis), balancing certification needs and R&D diagnostics
    • Automated Test Sequence :Standard initial test, screening, and final test automation functions, supporting the latest detection methods such as CISPR-AV and CISPR-RMS
    • Pulse Resistance Design :Supports 10 mWs pulse input protection, suitable for transient high-voltage interference in industrial environments

    III. Functional Characteristics and Industry Adaptability

    Basic EMC Pre-certification Testing
    • Standard Built-in Templates :Pre-configured CISPR, FCC, CE, etc., standard test procedures, supporting 6 detection methods including peak, quasi-peak, and average values, automatically generating spectrum graphs and out-of-limit reports
    • Multi-Curve Comparison Analysis :Can simultaneously display 6 measurement curves, overlaying standard limit lines and antenna factor libraries to quickly locate interference bands
    Convenient Fault Diagnosis Tools
    • Time-Domain Trigger Function :Captures transient interference triggered by external signals (such as voltage, pulses), suitable for dynamic scenarios such as switching power supplies and motor drives
    • Marking and Tuning Functions :Supports manual/automatic marking of harmonics and spurious signals, one-click tuning to the marked frequency for detailed analysis
    Scalability and Compatibility
    • Software Ecosystem Support :Compatible with R&S®ES-SCAN automated testing software, can control the Line Impedance Stabilization Network (LISN) and automatically switch phases
    • Interface Richness :Equipped with USB, LAN, and GPIB interfaces, supporting remote control and automated testing (compatible with LabVIEW, MATLAB)
    Compliance Assurance
    • Calibration Traceability :Provides ISO 17025 accredited calibration reports to ensure that test data meets international standards
    • Free Firmware Upgrades :Supports online firmware updates to keep up with new standards and functional optimizations

    IV. Typical Application Scenarios

    Consumer Electronics R&D
    • Wireless Module Testing :Pre-testing of radiated spurious emissions (RSE) for Wi-Fi and Bluetooth devices to verify compliance with the FCC Part 15 standard in advance
    • Power Adapter Detection :Conducted emission (CE) measurement (150 kHz-30 MHz) of switching power supplies to reduce modification costs during formal certification
    Industrial Electronics Testing
    • Inverter/Motor Control :Radiated emission testing of high-frequency noise (30 MHz-1 GHz) to ensure compliance with the EN 61000-6-4 industrial standard
    • IoT Device Optimization Out-of-band radiation analysis of LoRa and Zigbee modules to improve wireless communication stability
    Education and Research
    • EMC Principles Teaching Visually demonstrate differences in spectrum scanning and detection methods to help students understand basic electromagnetic interference concepts
    • RF Circuit Debugging Real-time monitoring of harmonic leakage in circuit design to accelerate product iteration speed
    Pre-certification Screening
    • Pre-production Spot Check Rapid EMI screening of finished products on the production line to reduce the risk of rework due to compliance issues for the entire batch of products
    • Pre-certification Self-Check Simulate the formal testing process using built-in templates to identify and resolve potential interference issues in advance
  • I. Hardware Options

    1. Core Functional Modules

    Option Model Function Description Applicable Scenarios
    ESL-B5 Expansion Port Module (including video output, intermediate frequency output, and noise source control interface) Complex system integration and signal analysis
    ESL-B20 20 dB low-noise preamplifier (covering the full frequency band, adjustable gain) Weak signal detection (such as radiated emission testing)
    ESL-B21 21 pre-selected filter groups, suppressing mirror interference High-sensitivity measurement in complex electromagnetic environments

    2. RF Front-End Optimization

    Option Model Function Description Applicable Scenarios
    ESL-B2 2 MHz high-pass filter, suppressing AC power line interference Conducted emission testing
    ESL-B24 2.4 GHz/5.8 GHz notch filter, suppressing strong carrier signals in the ISM band Consumer electronics, IoT device testing
    ESL-B8 Channel filter extended to 80 MHz bandwidth (analysis mode) Wideband signal demodulation

    3. Power Supply and Accessories

    Option Model Function Description Interface Type
    FSV-B30 12 V/24 V DC power adapter Mobile scene power supply
    FSV-B32 Lithium-ion battery box (supports 4 hours of continuous operation) Portable testing
    ZZA-478 19" rack adapter (supports 4 RU installation) Laboratory fixed deployment

    II. Software Options

    1. Compliance Testing

    Option Model Function Description Applicable Standards
    ESL-K34 CISPR 16-1-1:2019 certified test software (including quasi-peak, average, and RMS detectors) Consumer electronics, industrial equipment
    ESL-K36 EN 55032 certified test software (including pre-compliance scan function) Automotive electronics, in-vehicle communication
    ESL-K37 FCC Part 15 certified test software (supports digital device radiated emission testing) Communication equipment, IoT terminals

    2. Signal Analysis Tools

    Option Model Function Description Applicable Scenarios
    ESL-K52 Phase noise measurement software (supports 10 kHz to 1 GHz frequency offset analysis) Clock source, oscillator evaluation
    ESL-K54 Spurious signal analysis software (supports harmonic and intermodulation product detection) RF device R&D

    3. Advanced Functions

    Option Model Function Description Applicable Scenarios
    ESL-K62 Real-time spectrum analysis (RTSA) enhancement tool (supports 40 MHz bandwidth gapless capture) Signal integrity analysis
    ESL-K61 Accelerated time-domain scan (A-TDS) function (test time reduced to seconds) Fast compliance testing

    III. Accessories and Calibration

    1. Calibration Kits

    Option Model Function Description Interface Type
    11970-60001 Calibration kit (including 3.5 mm calibration parts) Basic RF testing
    11970-60005 Calibration kit (including 1.85 mm calibration parts) High-frequency device calibration
    ESL-CAL Annual ISO 17025 certified calibration service (including core modules) Equipment measurement validity maintenance

    2. Test Cables and Fixtures

    Option Model Function Description Frequency Range
    N9048B-301 1 GHz test cable kit (including 3.5 mm cable) Low-frequency signal transmission
    N9048B-303 44 GHz test cable kit (including 1.85 mm cable) High-frequency signal transmission

    IV. Service and Support

    1. Calibration and Maintenance

    Service Type Description Cycle / Range
    Standard Calibration 1 year ISO 17025 certified calibration (including core modules) Covers frequency, gain, and other indicators
    Extended Calibration Optional 2-5 year extended calibration (needs to be purchased separately) Extend equipment measurement validity period
    On-site Calibration On-site calibration service by engineers (requires additional payment) Complex system integration scenarios

    2. Technical Support

    Service Type Description Response Time
    7×24 hours support Telephone/email technical support, including firmware upgrade guidance Immediate response on weekdays
    Remote diagnosis Remote Troubleshooting Service based on WebEx Response within 4 hours
    Customized Training Customized training courses for EMI testing, phase noise measurement, etc. Customized course content on demand

    V. Differences between ESL Series Models

    Features ESL3ESL6
    Frequency Range 9 kHz to 3 GHz 9 kHz to 6 GHz
    Real-time Bandwidth 40 MHz (requires ESL-K55 option) 40 MHz (requires ESL-K55 option)
    Typical Applications Consumer electronics, home appliances Automotive electronics, 5G communication

    VI. Combination Recommendations

    1. Basic EMI Test

    • ESL6 (Basic Configuration) +  ESL-K34 (CISPR Certification) +   11970-60001 (Calibration Kit)
      Applicable Scenarios : Radiated emission testing for consumer electronics and home appliances.

    2. High-Frequency Extension Solution

    • ESL6 + ESL-B20 (Pre-amplifier) +  N9048B-303 (44 GHz Test Cable)
      Applicable Scenarios : High-frequency EMI testing for automotive radar and satellite communication equipment.

    3. R&D and Debugging

    • ESL6 + ESL-K52 (Phase Noise) +  ESL-K62 (RTSA Enhancement)
      Applicable Scenarios : Oscillator design, high-speed data link signal integrity analysis.

    VII. Notes

    Hardware Compatibility :
    • The pre-amplifier (such as ESL-B20) needs to be used with the pre-selected filter (ESL-B21) to improve the dynamic range.
    • High-frequency test cables (such as N9048B-303) need to match the mixer interface.
    Software License :
    • Some software options (such as ESL-K51 ) require separate authorization and activation.
    • The 5G NR analysis function requires the 89600 VSA software.
    Regional Restrictions :
    • Millimeter-wave mixers (such as ESU-110) may be subject to export controls and require prior confirmation of compliance.

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