Pritchard, Wilbur L. Henri G. Suyderhoud Robert A. Nelson creator text New Delhi Pearson Education 1993 monographic 567 p. : ill. ; 24 cm. Index Included. Antennas-Satellite communication Satellite communications Orbits Earth-Satellite geometry Spacecraft Modulation and multiplexing Earth stations FEAS 621.38254 PRI 8131702421 (pbk) 9788131702420 (pbk)