Title :
VHF sporadic E-a significant factor for EMI
Author :
Smith, Ernest K. ; Igarashi, Kiyoshi
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
Sporadic E, or Es, is an ionospheric propagation mode which is useless for service but is crucial in estimating interference at VHF. It is particularly important in Asia where temperate latitude sporadic E has its summer and yearly peak. Examples are given of the reduction in broadcast service area and year-to-year variability at the 99% of the time service level
Keywords :
VHF radio propagation; ionospheric electromagnetic wave propagation; radio broadcasting; radio spectrum management; radiofrequency interference; sporadic-E layer; television broadcasting; Asia; EMI; VHF sporadic E; broadcast service area; ionospheric propagation mode; summer; temperate latitude; time service level; year-to-year variability; Electromagnetic radiative interference;
Conference_Titel :
Electromagnetic Compatibility Proceedings, 1997 International Symposium on
Conference_Location :
Beijing
Print_ISBN :
0-7803-3608-9
DOI :
10.1109/ELMAGC.1997.617067
