مجلة الاربعين المحكمة
Radio-frequency interference (RFI) in radio telescope observations refers to the level of radio-frequency noise in the sky at all times, regardless of any astronomical sources this noise may be coming from including the Earth’s atmosphere and solar activity as well as all communications equipment near the areas of interest. Make it radioquiet and reduce or reduce noise pollution in it in order to preserve people’s health, as well as provide a quiet monitoring area within the same range of these frequencies.