BROWSE
Detail
Conference Paper
Measurement and Analysis of the Radiated Disturbance Level from the Plasma TV below 30 MHz
Cited - time in 
Share 
Share
- Authors
- Tae Heon Jang, Jong Hwa Kwon, Seung Keun Park
- Issue Date
- 2011-05
- Citation
- Asia Pacific EMC Symposium (APEMC) 2011, pp.1-4
- Language
- English
- Type
- Conference Paper
- Abstract
- In recent years there are some issues on the radiated disturbance below 30 MHz in IEC CISPR SC I, SC B, SC A and SC H. Some report concerns about the radiated disturbance below 30 MHz for the equipment despite of satisfying with the existing conducted emission limits of relevant standard.In the last paper the measurement setup for radiated emission below 30 MHz on the test site was derived from CISPR 16-1-4 and CISPR 11. CISPR 11, sub clause 6.2.4 states that "The antenna shall be supported in the vertical plane and be rotatable about a vertical axis. The lowest point of the loop shall be 1 m above ground level." In this paper, it was investigated the influence of the variation of measurement antenna height and the influence of the measurement distances. It was also measured interference level in SNR (dB) from the plasma TV set to an amateur radio receiver and AM radio receiver in SAC. Evaluation of audio quality as an interference on AM radio was performed in SAC. Then, it was measured the magnetic field intensity in order to ensure the SNR of 26 dB for AM radio receiver. The measurement of this disturbance level was performed at the different distances of 3 m and 5 m. This result will be used to derive the limit for protection of radio service below 30 MHz.
- KSP Keywords
- AM Radio receiver, Antenna height, Audio quality, CISPR 16, Conducted Emission, Emission limits, Interference level, Magnetic field intensity, Measurement and analysis, Measurement setup, Radiated emission