December 2011
Beginner
256 pages
7h 10m
English
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CHAPTER 9Picking Up Free Local OTA Stations
Prior to the changeover to digital television in the United States, over the air (OTA) television stations were broadcast using an analog radio wave signal. Analog simply means that the underlying data such as the sound you heard or the motion pictures you watched were sent though the airwaves by one of two methods: either the frequency of the signal was modulated or the strength of the signal was modulated to carry the data that made up the sound or the picture.
If graphed, the deltas in the frequency or amplitudes would appear as misshapen sine waves proportional to the sound. Similarly, the picture portion would be sinusoidal waveform representing which dots on the screen are to be illuminated. In ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.