Signal Strength Fluctuations in Two Line-of-Sight Microwave Links During the Eclipse of February 16, 1980

Nandini SenguptaInstitute of Radio Physics and Electronics, Calcutta University, Calcutta700 009.

S.K. ChatterjeeInstitute of Radio Physics and Electronics, Calcutta University, Calcutta700 009.

P. BandyopadhyayInstitute of Radio Physics and Electronics, Calcutta University, Calcutta700 009.

(Fellow) ,

B.M. ReddyRadio Science Division, National Physical Laboratory, New Delhi110 012.

H.N. DuttaRadio Science Division, National Physical Laboratory, New Delhi110 012.

S.K. SarkarRadio Science Division, National Physical Laboratory, New Delhi110 012.

Abstract

The field strength fluctuations in two line-of-sight microwave links, one between Dum Dum and Andul, and the other between Calcutta and Amdanga during the solar eclipse of February 16, 1980 are reported. A wavelike signal fluctuation of range 20 dB was noticed in the Dum Dum—Andul link during the eclipse. The fluctuation is interpreted as an eclipse effect superposed on the usual afternoon pattern of the signal variation. An alternative explanation in terms of eclipse-induced surface gravity waves is also discussed.

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Signal Strength Fluctuations in Two Line-of-Sight Microwave Links During the Eclipse of February 16, 1980

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Signal Strength Fluctuations in Two Line-of-Sight Microwave Links During the Eclipse of February 16, 1980

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