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KS X 3138 EMC Testing of Ground and Wall-Probing Equipment

KS X 3138, previously known as KN 301 489-32, covers ground and wall probing radar equipment. As a leader in electromagnetic compatibility, EMC, regulatory compliance testing, Keystone Compliance assists electronic equipment manufacturers with EMC testing. Meeting the IEC, EN, and other EMC testing requirements can be challenging. Not only do we understand the challenges, but we help guide companies through the process.

We tailor each test plan to individual customer needs minimizing unnecessary costs and over-testing. We have a reputation for helping customers achieve their EMC product certifications. Our proven process helps avoid product launch delays. From concept through compliance, Keystone meets all of our customers’ needs under one roof.

Request a quote to receive expert KS X 3138/KN 301 489-32 EMC testing services tailored to your specific needs. Contact us to discuss your product and how we can assist you in achieving South Korean EMC compliance certifications.

Summary of KS X 3138 Unintentional Radiator EMC Testing

The KS X 3138 standard EMC test method covers the ground and wall-probing radar equipment and ancillary equipment in respect to EMC. Technical specifications such as the antenna port and emissions from the enclosure port are not included. However, this document specifies the applicable test conditions, performance assessment, and criteria for GPR, WPR, and the associated ancillary equipment.

Electromagnetic compatibility KS X 3138 testing is described as when a device does not interfere with its electromagnetic (EM) environment and it does not emit levels of EM energy that cause electromagnetic interference (EMI) in other devices in the vicinity. Other definitions are used multiple times within this standard. This includes the following.

          Ground Probing Radar (GPR): A radar application and equipment, used to probe and examine/analyze sub-surface material or structure.

          Wall Probing Radar (WPR): A radar application and equipment used to examine/analyze material in walls.

Scope of KS X 3138 EMC Ground and Wall Probing Equipment

During the test, the EUT is operated as intended and for this type of equipment, no modulation is required. For equipment with the capability of using different imaging heads, each one is tested independently.

The GPR and WPR equipment process signals using transmitters. These transmitters emit repetitive or random pulses. The equipment will present the received signal as either an analog time-varying voltage or as a digitized version of the time-varying detector output.

To confirm that the equipment is operational during testing, the manufacturer will provide means which allow monitoring of the analog or digital information.

For the KS X 3138 EUT, the performance assessment is based on three factors.

  • The maintenance function(s);
  • The way the eventual loss of function(s) can be recovered;
  • Unintentional behavior of the EUT.

Lastly, performance criteria for GPR and WPR equipment during and after immunity testing are specific to this KN 301 489-32 test. Performance criteria A is for immunity testing with phenomena of continuous nature. Performance Criteria B is used for immunity tests with phenomena of transient nature.

Keystone Provides Expert KS X 3138 EMC Testing

Keystone Compliance can accommodate fixed, mobile and portable devices of all sizes. In addition to KN EMC compliance testing, Keystone has a full scope of expertise including environmental and package testing such as accelerated aging, vibration, and temperature. Additionally, we have a full lab of test equipment which permits us to provide short lead times on scheduling. 

Request a quote to find out for yourself about the Keystone difference. For more information on why so many companies partner with Keystone Compliance, contact us.