Scott, I have wanted to write a book that eliminates wading through all the math to explain impairments and problems they cause. But, I'm sorry to say I've never had the time to do so. If you don't mind wading through math, sometimes in minutia, below are several publications that cover the subject. Unfortunately most cover impairments from the stand point of designing data transmission equipment and/or modems.
They do not go into the details of impairments in any depth. Only how to solve the problems caused by the impairments. You may have some difficulty obtaining the older publications, but many Engineering Libraries at Universities will have them in their archives. As you can see some of the publications are rather dated, but still very relevant, so don't let the dates scare you off. They are still referenced in all present day publications dealing with the subject. The books by Bennet & Davey and Lucky, Salz & Weldon are especially good. I have used them for 25 years. The BSTJ publications are very good. They are based on actual data taken by AT&T engineers before divesture and things haven't changed that much since then. Although some pseudo technologists claim it has. In my opinion the same problems still exist. I will concede one difference. There is very little mechanical switching today. As a consequence the noise generated by mechanical switching of properly and poorly adjusted switches no longer exists. (I added that statement to insure Vic B. would not call me on it.) They only thing not covered extensively is fiber, which in my opinion is only used between CO's and has not change impairments that much. Fiber is not available to many end users, commercial or otherwise. Regards, Duane Capabilities of the Telephone Network for Data Transmission A. A. Alexander, R M. Gryb & D. W. Nast Bell System Technical Journal (BSTJ), vol. 39, pp. 431 - 476, May 1960 Data Transmission W. R. Bennet & J. R. Davey McGraw-Hill, 1965 ISBN 07 - 00467 - 8 Principles of Data Transmission R. W. Lucky, J. Salz & E. J. Weldon McGraw-Hill, 1966 Physical and Transmission Characteristics of Customer Loop Plant P. A. Gresh BSTJ, vol. 48, pp. 3337 - 3385, Dec. 1969 Principles of Digital Communications and Coding A. J. Viterbi & J. K. Omura McGraw-Hill, 1979 Digital Communications J. G. Proakis McGraw-Hill, 1983 1982/1983 End Office Connection Study: Analog Voice and Voiceband Data Transmission Characteristics of the Public Switched network M. B. Carey, H. -T. Chen, A. Descloux, J. F. Ingle, & K. I. Park AT&T BSTJ, vol. 63, pp. 2059 - 2119, Nov. 1984 Advanced Digital Communications Systems and Signal Processing Techniques Dr. Kamilo Feher Prentice - Hall, 1987 ISBN 0 - 13 - 011198 - 8 The Theory and Practice of Modem Design John A.C. Bingham John Wiley & Sons, 1988 ISBN 0 - 471 - 85108 - 6 >Hello TREG'ers, > >I'm looking for a recommendation to a good engineering book that >discusses telephone line impairments in depth. > >I've gotten copies of most of the TIA and ITU standards that apply. >While very helpful, they only go just so far. They are consensus >documents written my committees, and what I'd like to learn about >are the fundamentals behind the standards from someone who has >"walked the walk." > >Not sure if a book like this exists, but thought I'd ask. (If anyone >out there is writing such a book, I'd be interested in trading an >independent review for a draft copy.) > >Thanks! > > -- Scott R. > >----------------------------------------------------------------------- > Scott Roleson, PE | Internet: [email protected] > EMC & Telecom Engineer | http://www.WP.com/SRoleson > San Diego Division MS 8-60 | Telephone: +1-619-655-4809 > Hewlett-Packard Company | FAX: +1-619-655-5931 > 16399 W. Bernardo Drive | Amateur Radio: KC7CJ > San Diego, CA 92127-1899 USA | Any opinions are my own, not HP's. >-----------------------------------------------------------------------
