Suitable for factory line inspection processes or outdoor power measurements

Electromagnetic interference (EMI) debugging engineers were burdened by test results, cost concerns, and time management challenges. The problem arose from the need to perform precise measurements using high-performance antennas and high-end spectrum analyzers in confined spaces, only to receive a pass or fail result.

For example, when re-measuring at a distance of 3m or 10m from the device you want to measure, it is not possible to intuitively identify the location or component of the internal EMI that caused the failure result.

To find the components and locations where EMI occurs, you must either directly replace the components or partially modify the PCB pattern and then repeatedly test. Companies that do not have all the equipment have to outsource testing to external parties, which incurs costs. In addition, given the nature of development, where EMI testing is conducted when product development is more than 90% complete, delays in debugging can also lead to delays in mass production and product launch schedules.

In addition, if you create a report that includes values to regulate the RF noise that is continuously coming out, it takes at least 20 minutes of test time, and the EMI chamber schedule is always full, so there may be a situation where it is unclear whether the chamber will be used.
To minimize these challenges, Tektronix Director Lee Ki-eung stated, "Pre-testing each component is crucial before full compliance testing, which tests all equipment." This is to identify internal device issues and prevent potential test failures. Tektronix offers EMI pre-test solutions, the RSA306 and MDO4000 series. Before full compliance testing, we conduct a preliminary test with RSA306, and if it fails, we debug with MDO40000 and RSA306 and then retest.

All equipment can be pre-tested and debugged in close proximity before remote measurement, allowing immediate testing. This makes it ideal for use in factory line inspections or outdoor power measurements. Remote measurement also displays frequencies that deviate from specifications.

The MDO4000 combines an oscilloscope and spectrum analyzer, enabling the measurement of noise frequency and its location without phase delay. Its time-domain digital and analog channels capture individual points, allowing simultaneous analysis of RF signals generated as a sequence of two signals.

Additionally, the Time Correlation function can analyze the correlation and sequence of signals at once because each collected signal is synchronized.