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X-Analog's Link Budget Approach

X-Analog strives for and consistently achieves link budget accuracies of 0.5 dB or better. Our foundation is based on 21 years of extensive experience and responsibility for end-to-end link budgets for manned spaceflight programs. Beginning with the Apollo program, Dr. Batson’s (X-Analog’s CEO) early work contributed materially to the successful transmission of analog television signals from the lunar surface back to earth. Later work included responsibility and accountability for the design and performance of all communications systems providing services, analog and digital, between the Space Shuttle and the Manned Spaceflight ground Network (MSFN), and between the Space Shuttle and the Tracking and Data Relay Satellite System (TDRSS). All of these early efforts required extensive testing and analysis of each and every element of the various systems involved, in order to validate the math models and parameter values used in the link budgets that were calculated for each of the services indicated. The result was a set of link budget programs that yielded accuracies approaching 0.1 dB (accuracies, in this context, refer to differences between calculated link budget results and very precise performance measurements).

Today, X-Analog’s link budget calculations are based heavily on the link budget programs developed during the early NASA work. X-Analog still performs extensive tests to validate parameter values such as adjacent satellite interference (C/I) and carrier to intermod (C/IM). As a result, our link budget results consistently provide accuracies of 0.5 dB or better, and can be used with confidence in both the design and operation phases of modern satellite networks.

Please contact us for any of your link budget needs