In this chapter, you have learned the basic concepts of how radio work. You understand the concepts of frequency, modulating a signal, and understanding how strongly you are receiving the signal (in decibels). We’ve also learned to quantify the theoretical maximum amount of data that can be encoded into a radio link, subject to signal-to-noise ratio. This provides a good upper-bound on what can be achieved with radio signals.
This chapter has provided the fundamental theoretical building blocks on which we can begin to understand our WISP technology. It is heavy going, but the worst of the theory is now behind us!« Chapter 1: The Shanon-Hartley Theorem Up To Contents Chapter 2: Introduction to Spectrum Bands, Protocols and Channel Widths »
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