Proceedings of the Mobile Satellite Conference

A satellite-based mobile communications system provides voice and data communications to mobile users over a vast geographic area. The technical and service characteristics of mobile satellite systems (MSSs) are presented and form an in-depth view of the current MSS status at the system and subsystem levels. Major emphasis is placed on developments, current and future, in the following critical MSS technology areas: vehicle antennas, networking, modulation and coding, speech compression, channel characterization, space segment technology and MSS experiments. Also, the mobile satellite communications needs of government agencies are addressed, as is the MSS potential to fulfill them

Lunar surface exploration.

Special issue of the Bendix Technical Journal Volume 4 Number 2 Summer/Autumn 1971 on lunar exploration.ALSEP: The Scientific Voice of the Moon / L. R. Lewis -- Some Aspects of ALSEP Structural/Thermal Design / J. L. McNaughton -- The ALSEP Central Station Data Subsystem / W.M. Tosh -- The Passive Seismic Experiment / D. K. Breseke and J. Lewko, Jr. -- The Active Seismic Experiment / J. R. McDowell -- The Charged-Particle Lunar Environment Experiment / A. D. Robinson and L. D. Ferguson -- The Lunar Heat Flow Experiment / B. D. Smith -- The Laser-Ranging Retroreflector / J. M. Brueger -- ALSEP Human-Engineering Design Criteria / R. L. Redick -- ALSEP Data Management / C. R. Murtaugh, W. K. Stephenson, and B. L. Sharpe -- The Lunar Ejecta and Meteorites Experiment / L. Galan -- The Lunar Mass Spectrometer Experiment / R. D. Ormsby and C. E. DeHaven, Jr. -- The Lunar Seismic Profiling Experiment / J. E. Dye -- The Lunar Surface Gravimeter Experiment / H. K. Hsi and W. E. Crosmer