Amateur extra class test questions

Right up front… this is a very long article, and making it seem even worse, is that these days no one really likes to read anything which is too wordy. But there was no easy way that I could come up with, to give this topic a complete and careful explanation, with only one line bullets and short little talking points. I would hope that if you are serious enough about passing your Extra Class Exam for the first time, or perhaps you are frustrated with one or more unsuccessful attempts at sitting for the exam, you might like to take the time to carefully examine this detailed log of my own experience. I have never seen the process which I describe here documented in any of the literature, and since it was successful in my own case, perhaps it just might be an unexplored path by which others might find similar success.

Additional reference material is listed on my Study Materials page. What aspect of an amateur slow-scan television signal encodes the brightness of the picture? How can linearly polarized Yagi antennas be used to produce circular polarization? How many levels can an analog-to-digital converter with 8 bit resolution encode? How can the true power be determined in an AC circuit where the voltage and current are out of phase? Why do CMOS digital integrated circuits have high immunity to noise on the input signal or power supply? How does the modulation index of a phase-modulated emission vary with RF carrier frequency the modulated frequency?

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Just a few short years ago, lots of people thought that the hobby of ham radio would be almost completely dead by now, but the opposite has happened — ham radio is officially more popular than ever, and nearly a million people in the US have an amateur radio license. Many people thought that the internet would kill amateur radio, but it actually helped it grow, by increasing the number of things you can do with a ham radio license, and by making the information on how to do it accessible to all. There are probably millions of people out there who had never heard of ham radio until they learned about it on the World Wide Web. In order to pursue the hobby of ham radio, a person needs a license from the federal government. There used to be six different kinds of licenses, but a while back the licensing process was streamlined, and now there are only three — Technician, General, and Extra.