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EMI Test Receiver

Product No: EMI-9KB

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  • The EMI-9KB series conducted and radiated interference test system is designed to quantitatively measure the conducted interference (propagated through power/signal lines) and radiated interference (propagated through space) generated by electrical and electronic products during operation, providing comprehensive technical support for product electromagnetic compatibility (EMC) compliance testing and interference source location. The EMI-9KB series utilizes a fully enclosed design and a body constructed of highly conductive materials, providing excellent shielding and fundamentally eliminating inherent interference resistance. Widely used by manufacturers, R&D centers, and third-party testing organizations in fields such as information technology equipment, home appliances, and lighting, it can quickly identify excessive electromagnetic interference (such as switching power supply noise and motor radiated interference) in products, helping products pass EMC compliance certification and preventing interference issues that could disrupt normal operation or pose safety risks.

    Standard:

    Standard No. Standard Name
    CISPR 16-1-1:2019 Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-1: Radio disturbance and immunity measuring apparatus – Measuring apparatus
    CISPR 22:2006 Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement (Replaced by CISPR 32:2019)
    CISPR 32:2019 Electromagnetic compatibility of multimedia equipment -Emission requirements
    CISPR 14-1:2021 Electromagnetic compatibility – Requirements for household appliances, electric tools and similar apparatus – Part 1: Emission
    CISPR 15:2018 Electrical lighting and similar equipment – Radio disturbance characteristics – Limits and methods of measurement
    EN 55022:2015 Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement
    EN 55014-1:2021 Electromagnetic compatibility – Requirements for household appliances, electric tools and similar apparatus – Part 1: Emission
    EN 55015:2019 Limits and methods ofmeasurement of radiodisturbance characteristics of electricallighting and similar equipment
    IEC 61000-6-3:2020 Electromagnetic compatibility (EMC) – Part 6-3: Generic standards – Emission standard for equipment in residential environments
    GB/T 6113.101-2021 无线电骚扰和抗扰度测量设备和测量方法规范 第 1-1 部分:无线电骚扰和抗扰度测量设备 测量设备
    GB 9254-2008 信息技术设备 无线电骚扰限值和测量方法(被GB/T 9254.1-2021替代)
    GB/T 9254.1-2021 信息技术设备、多媒体设备和接收机第1部分:发射要求电磁兼容
    GB 4343.1-2018 家用电器、电动工具和类似器具的电磁兼容要求 第 1 部分:发射
    GB 17743-2022 电气照明和类似设备的无线电骚扰限值和测量方法

    Specifications:

    LISUN Model EMC-9KC EMC-9KBS EMC-9KB EMC-9KA
    Frequency range 9kHz~1000MHz 9kHz~300MHz 9kHz~300MHz 9kHz~30MHz
    System components Receiver, LISN, CDNE, isolation transformer, coaxial cable Receiver, LISN, isolation transformer, coaxial cable
    Frequency resolution Minimum 1Hz
    Frequency stability 1*10⁻⁷ 1*10⁻⁶
    Input impedance 50Ω
    Input attenuation range Internal attenuator: 30dB (10dB steps: 0/10/20/30dB) External attenuator: 20dB (10dB steps: 0/10/20dB)
    Input VSWR ≤2(RF ATT=0dB);≤1.2(RF ATT=10dB)
    Detection mode PK (peak), QP (quasi-peak), AV (average)
    Noise floor (peak detection) 0dBμV(9kHz~150kHz);0dBμV(150kHz~30MHz);≤10dBμV(30MHz~1000MHz)
    Terminal voltage measurement range 0dBμV to 120dBμV (Continuous Wave signal measurement)
    Pulse characteristics Meets GB/T 6113.101 and CISPR 16-1-1
    Basic measurement accuracy ±1dB (reference pulse interference signal) ±1.8dB (reference pulse interference signal)
    Pulse response accuracy ±1dB (pulse repetition frequency ≥ 20Hz) ±1.8dB (pulse repetition frequency ≥ 20Hz)
    Preselector 1 Two-stage, 20-channel fixed preselector (9kHz-30MHz) N/A
    Preselector 2 Two-stage programmable automatic tracking frequency preselector (30MHz-1000MHz) N/A
    IF interference rejection ≥85dB
    Measurement bandwidth (-6dB) 200Hz(9kHz~150kHz);9kHz(150kHz~30MHz);120kHz(30MHz~1000MHz)
    Sweep mode Configurable sweep range, step size, level threshold, and measurement time
    Operation mode Manual, automatic Automatic
    Measurement mode Fixed point, sweep
    Display mode Proprietary, large LCD touchscreen + Chinese and English PC software runs on Windows 7, Windows 8, Windows 10, and Windows 11 Chinese and English PC software runs on Windows 7, Windows 8, Windows 10, and Windows 11
    Power supply 100~240VAC/50Hz/60Hz 200~240VAC/50Hz/60Hz
    Applicable standards Receiver built-in GB/T 17743, GB 18655, GB 4343, GB/T 9254, CISPR 14, CISPR 15, CISPR 16-2-1, CISPR 25, EN 61011 55014-1, EN 55022, EN55032, FCC, FCC 15 and other standards, suitable for LED lighting, switching power supply, power tools, household appliances and other industries

    Optional instruments to work with the EMI-9KC, EMI-9KB and EMI-9KA EMI receivers:
    LISUN LSP-500VARC/LSP-1KVARC Pure Sine Wave AC Power Source Programmable Pure Sine Wave SourceMeter for EUT
    LISUN SDR-2000B Magnetic Shielding Cabinet EMI Shielded Chamber for EMI Test Systems
    LISUN VVLA-30M Three Loop Antenna Three-Ring Antenna for testing 9k-30MHz radiated emissions, compliant with CISPR 15-2018, EN 55015, and GB 17743-2022 standards
    LISUN AB-CLP Absorbing Clamp Absorbing Clamp for testing household applications and power tools, compliant with CISPR 16-1-3, GB/T 6113.103-2021, CISPR 14-1, and EN 55014-1 standards
    LISUN VOL-CP RF Current Probe RF Current Probe for testing interface interference voltage, compliant with CISPR 16-1-2, GB/T 6113.102-2018, CISPR 15-2018, EN 55015, GB 17743-2022 standards

    Typical Applications:
    1. Information Technology Equipment (IT Equipment)
    • Computer and Peripheral Equipment Testing: Detects conducted and radiated interference from laptops, desktops, printers, and servers, verifying that interference signals within the 9kHz-1GHz frequency band comply with the limits set by GB 9254 and CISPR 22 to prevent interference with the power grid or surrounding electronic devices (such as monitors and routers) during operation.
    • Mobile Terminal Accessory Testing: For accessories such as mobile phone chargers, wireless power banks, and Type-C docking stations, conducted testing is used to locate high-frequency noise generated by switching power supplies, while radiated testing is used to identify radiated interference from wireless charging modules, ensuring product compliance with 3C and CE certifications.

    2. Household Appliances and Power Tools
    • Household Appliance Electromagnetic Compatibility Testing: This test measures conducted interference (transmitted through power lines) and radiated interference (radiated into space during operation) from household appliances such as refrigerators, washing machines, microwave ovens, and air conditioners. This test complies with GB 4343.1 and CISPR 14-1 standards, preventing appliances from interfering with devices like televisions and radios while also ensuring they are not affected by power grid interference.
    • Power Tool Testing: This test focuses on detecting pulse interference and high-frequency radiation generated by motors in power tools such as electric drills, electric saws, and vacuum cleaners. This system systematically locates interference sources (such as carbon brush sparks and drive circuit noise) to help manufacturers optimize their electromagnetic compatibility designs.

    3. Lighting and Luminaire Equipment
    • LED Lighting Product Testing: Detects radio interference from LED lamps and LED drivers. Verifies whether radiated interference within the 30MHz-1GHz frequency band exceeds standards in accordance with GB 17743 and CISPR 15 standards to prevent lamps from interfering with smart home systems (such as smart switches and sensors).
    • Stage Lighting Equipment Testing: Tests high-power lighting equipment such as moving headlights and follow-spots for changes in conducted interference during dimming to ensure compliance with electromagnetic compatibility requirements in different operating modes and to prevent interference with stage audio equipment, consoles, and other equipment.

    4. Third-Party Testing and Certification
    • Compliance Certification Testing: Third-party testing organizations such as SGS, CQC, and TÜV use this system to provide companies with EMI conducted and radiated emissions test reports based on international standards such as EN 55022 and EN 55014-1. This helps companies obtain international certifications such as CE, FCC (US), and VCCI (Japan), enabling them to enter the global market.
    • Interference Problem Diagnosis: This system provides companies with EMI problem troubleshooting services. Using the system’s spectrum analysis function, it locates interference sources (such as noise at specific frequencies). Combined with conducted and radiated emissions test data, it provides optimization recommendations (such as adding filters and optimizing grounding designs), helping companies quickly resolve electromagnetic compatibility issues.

    LISUN EMI Test Receiver EMI-9KC/EMI-9KB/EMI-9KA – After-sales Frequently Asked Questions (FAQ)
    LISUN EMI Test Receiver EMI-9KB or EMI-9KA were in the market for more than 10 years, LISUN engineers service team already summary the most of the After Sales Questions and Answers in the above link. Please read it carefuly, you can solve the most of the problems by yourself if you have some questions while using the instruments. LISUN will be continue to update this pages and more FAQ can be found in this topic link. 

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  • EMI-9KB EMI Test Receiver - Introduction Video

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    EMI-9KB EMI Test Receiver - Operation Video

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  • EMI-9KB EMI Receiver System Brochure EMI-9KA Calibrate Certificate EMI-9KB Calibrate Certificate EMI-9KC Calibrate Certificate LISN-A Calibrate Certificate CISPR15 2013 Standard Free Download CISPR15 2018 Standard Free Download CISPR16-1-AMD.2-F2-ED.1.0 1999 Standard Free Download EN55015 2000 Standard Free Download GB-17743 2007 Standard Free Download