\input zb-basic \input zb-ioport \iteman{io-port 01505656} \itemau{Lutz, E.; Werner, M.; Jahn, A.} \itemti{Satellite systems for personal and broadband communications.} \itemso{Berlin: Springer. xvi, 433 p. DM 169.00; \"oS 1234.00; sFr 153.00; \sterling 58.50; \$ 92.00 (2000).} \itemab The new satellite systems basically belong to two categories: (1) satellite networks for mobile/personal communications, mainly with handhold terminals, and (2) satellite networks for broadband multimedia communications, mainly for fixed but also for portable and mobile terminals. The present book provides an overview of both families of satellite systems. In Part I, the basics of geostationary and non-geostationary satellite constellations are considered, as well as the principles of satellite communications: Satellite orbits, constellations, and system concepts (Chapter 2), Signal propagation and link budget (Chapter 3), and Signal transmission (Chapter 4). Part II deals with satellite systems for mobile/personal communications: Multiple access (Chapter 5), Cellular satellite systems (Chapter 6), Network aspects (Chapter 7), Satellite technology (Chapter 8), Regulatory, organizational, and financial aspects (Chapter 9). Part III is dedicated to satellite systems for broadband communications: Multimedia communications in satellite system (Chapter 10), ATM-based satellite networks (Chapter 11), and Network dimensioning (Chapter 12). A useful Appendix contains: A. Satellite spot beams and map transformations; B. Parameters of the land mobile satellite channel; C. Existing and planned satellite systems. The book covers a wide area of topics in modern satellite communications, being a valuable source of information for the professionals working in the fields of communications and/or satellites. \itemrv{Neculai Curteanu (Ia\c{s}i)} \itemcc{} \itemut{satellite networks; mobile communications; personal communications; broadband multimedia communications; modern satellite communications} \itemli{} \end