Design guidelines for 800 MHz land-mobile systems

This paper develops guidelines for the design of 800 MHz land-mobile radio communication systems. The areas explored include ascertaining the design limitations imposed by thermal receiver noise relative to the impact of ambient noise in various environments. Diversity techniques useful in areas of high multipath propagation are mentioned. The nature of 800 MHz antennas and the impact of their effective aperature and vertical beamwidth compression on system design in multipath signal environments are discussed. This is followed by a discussion of transmission line and connector characteristics at 800 MHz and consideration of interference protection. The nature of propagation in this band and the designer´s evaluation of system power budgets are examined, leading to the presentation of a set of design worksheets to be used in practical applications.