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Title: Digital Microwave-Upgrading From An Analog To A Digital System
Author: Kenneth E. Myers
Source: American Gas Association 1990
Year Published: 1990
Abstract: In the event that a microwave radio user decides to upgrade his microwave system by replacing existing analog FM radio with digital radio, the important performance objectives and design criteria that must be considered to achieve an optimal radio route design requires a thorough study of the performance and route cost with respect to the following items: Number of radio hops in the route Radio configuration (protected or nonprotected) Hop lengths Transmitter power Climate and terrain roughness of each hop System gain (digital or analog) Frequency band (2GHz or 6GH2) Channel capacity DC power requirements Antenna system (diversity or nondiversity) Transmission line losses (waveguide/coax) Performance objectives The theme of this paper is to discuss the differences in these technical constraints as applied to analog versus digital and how they interact with the design requirements needed to meet digital radio design objectives.

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