Line-of-Sight Microwave Propagation Characteristics at 6 GHz Over Dum Dum/Andul Link

Abstract

Line-of-sight propagation characteristics observed at 6 GHz over Indian East Coast are presented in this paper. Scintillation frequency observed at 6700 MHz and 6580 MHz over Dum Dum/Andul path is 1 to 4 while refractive index fluctuations evaluated for incoherent scattered signal varies from 0.32 to 0.90 × 10^-8. Wind component (V cos θ) along the line joining the two terminals shows that scintillation frequency increases as wind increases. The observed wavelength dependence under varied turbulent conditions has been found to be λ^-1·3 to λ^-0·8 while under layered conditions, the dependence varies from λ^0·4 to λ^2·3 depending upon layer dimensions, The dual frequency experiment has a special significance due to the paucity of results regarding the wavelength dependence under turbulent conditions in India.

Indexing Terms:

• LOS
• Microwave Propagation
• Scintillation Frequency

Additional information

Notes on contributors

P. Bandyopadhyay

Bandyopadhyay, Panchanan (Dr): Received M.Sc. (Physics) from Calcutta in 1948. Served Asutosh College, Calcutta as a Lecturer for some years. Received Ph.D. from Calcutta in 1968 and D.Sc. from San Marcos, Lima, Peru in 1966. Spent more than seven years at the Huancayo Observatory of the Peruvian Geophysical Institute. Since 1969 he is at the Centre of Advanced Study in Radio Physics and Electronics, Calcutta University where he is presently a Professor. He is a Fellow of IETE, India. His field of interest is Space Science.