Title: Essentially not a very good book.
Product review: Author cannot make up his mind as to whether he wanted to write atechnical reference book for modems or an introductory book for "dummies." Sometimes the text is written as if it is a non-reference book, but the equations and figures come up without enough explanation, so it assumes that you know the subject well. If you are looking for a solid technical reference on modems, this isn't it. The figures are over-simplified so much as to be sometimes hard to understand.Only reason to buy it is because there are no other reference books on the subject. It is certainly way over-priced.
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