Low cost solution for emission measurement

The proliferation of electronic system by commercial/military users has resulted in electromagnetic pollution of frequency spectrum. This calls for ambient EMI survey of test site over a wide band with an EMI receiver. This is a prerequisite to ensure system EMC for normal functioning. Moreover EMI receiver can be used during and after design stages for RE/CE compliance checks. The EMI receivers currently available in the market are costly. If the product designer has a low cost EMI receiver, it can be used at various stages of design, development and pre-compliance checks. The authors have developed low cost solution for Emission testing by making use of low cost commercial receiver having RS-232 interface and developed software for control and compliance verification. The effectiveness of the system is enhanced due to use of software, which can be altered to incorporate many additional new features time to time.