A COMPARISON OF FOUR METHODS OF HIGH BIT RATE DATA RELAY

Abstract

A number of methods exist for the transmission of digital telemetry data. This paper explores four separate methods of transmitting and receiving high bit rate telemetry data (13 megabit/sec). Since choices may need to be made in terms of performance and cost, these are the areas that are explored in some detail. Costs may also include considerations of existing equipment which can be somewhat intangible. Performance can be limited to transmitted and received signal levels in order to quantify the ability of the equipment to handle received signal levels. Although the results may indicate rather clear cut “winners” in both cost and performance, other factors may provide the deciding influence for the purchase of such a system.