Ben Gilbert: evaluation

Transcript context

…Yes. While they're working on this, they're like working on like, okay, we're the experts at optimizing satellite communication channels for efficiency. They come up with an application of spread spectrum to use multiple conversations access the same channels at the same time. They used a technique called CDMA, Code Division Multiple Access. The first time you hear this phrase, it sounds like complete jargon, like meaningless, and then you stare at the Wikipedia article for a while to try and unpack each one. We'll break it into parts. Multiple access, that's fairly straightforward. Rather than being broadcast like a TV network, we have multiple endpoints that all want to communicate with each other using whatever the same communication medium is. Rather than using one single frequency to all trying to pile on there at the same time, which of course wouldn't work in that analog world that we were talking about. I want to call you on 92.3, you want to call Bob on 92.3. My mom wants to call my dad on 92.3. You quickly get into a situation where everything's just colliding with each other. Multiple access on just a single analog frequency doesn't work, so you got to divide up and say everybody gets their own frequency, and that's the way the world evolved. You mentioned code division. Before we get to code division, can we talk about a different type of division? Yes, we certainly can.…

Stored transcript either side of the excerpt. The highlighted words are the published quote; the surrounding text is unedited source, never generated.