Building and using baluns and ununs books

Page 3 of 3 building, and using baluns and ununs by jerry sevick, w2fmi, is widely recognized as a definitive source of balun information. Baluns are usually used to feed dipole antennas with 50ohm coax and to transpose from ladder line feeding a multiband antenna to the unbalanced input of an antenna tuner. I guess i did that, but you guys stirred the pot, the can of worms was poured into. Understanding, building, and using baluns and ununs by. And please, dont believe all you read on the web about these useful devices. The book building and using baluns and ununs by jerry sevick, w2fmi, has a whole chapter on building 4.

Cws bytemarks baluns balanced to unbalanced and ununs unbalanced to unbalanced. Buy both the cd and paperback and save see baluns combo. The w1jr type balun he describes uses 10 turns of a small coax i. It features page after page of new tutorial material, designs, and the use of baluns and ununs for dipoles, yagis. Buy understanding, building, and using baluns and ununs. Practical designs for the experimenter sevick, jerry on.

Understanding, building, and using baluns and ununs book. Jerry sevick, w2fmi, in his book understanding, building and using baluns and ununs, describes a number of baluns and ununs for different ratios and purposes. Cq magazines understanding, building, and using baluns and ununs on cdrom is the successor to the popular and authoritative baluns and ununs book. We have new and used copies available, in 0 edition starting at. Jerry sevick author of transmission line transformers. Comtek baluns are valueengineered for maximum performance at a reasonable cost. Practical designs for the experimenter by jerry sevick isbn. I have both transmission line transformers first ed, 1987 hardcover and understanding, building and using baluns and ununs 2003 paperback. Understanding, building and using baluns and ununs by.

Understanding, building, and using baluns and ununs may 15. Understanding, building, and using baluns and ununs by dr. I found that transmission line transformers was heavier on the theory and the other one had more ready to build designs. My first thought upon reading the first few sections is that the notation could be explained more clearly. Chokes, baluns and ununs a wcares presentation based upon information garnered from books.

Jerry embodied the oldfashioned amateur spirit of innovation by experiment, applying his many years of experience as a bell labs researcher to a retirement project analyzing the performance of short vertical antennas, said gary. See jerry sevick, w2fmi, understanding, building, and using baluns and ununs, cq communications, 2003. Understanding, building, and using baluns and ununs open. Theory and practical designs for the experimenter is written by jerry sevick, a renowned authority on transmission line transformer theory.

Practical designs for the experimenter by sevick, jerry abebooks. He also coined the term unun to describe an unbalanced to unbalanced impedance transformer. After reading through it, i decided to build the ruthroff design. This cd contains a great deal of new tutorial material, new designs not in his previous books and crystal clear. Nov 20, 2017 understanding, building, and using baluns and ununs from cq communications offers clear explanations of how and why baluns and ununs work. The primary reason for using a balun at the feed point of a dipole antenna is to prevent rf currents from flowing on the outside of the shield of the coax feeding the antenna.

Understanding, building and using baluns and ununs by jerry sevick and a great selection of related books, art and collectibles available now at. Understanding, building, and using baluns and ununs mc2bu by jerry sevick, w2fmi. This excellent book has many balun designs and measurements of their losses. Understanding, building, and using baluns and ununs theory.

Jerry sevick is the author of transmission line transformers 3. Understanding building and using baluns and ununstheory and practical designs for the experimenter. Looking to see if someone knows what info is in the books, so buying multiple without duplication. Be rugged enough for field use be water resistant for portable field use the trb design i went to my copy of understanding, building and using baluns and ununs by jerry sevick, w2fmi. Baluns and ununs can be wound in many different ways, but the material you wind round also makes a massive difference. I am assuming that can get me in trouble that the bigger books may have all and more that the smaller books. Jerry sevick is well known in the amateur radio community and his work on transmission line transformers, baluns and ununs, has been adopted as a standard by the ieee. Includes a great deal of new tutorial material, designs, and explanations of how and why they work.

Paperback vimip 8mp 1080p hdcvitviahd video balun mini cctv bnc passive video balun transceiver 4 pairs. Full text of understanding building and using baluns and ununs. In order for this book to be useful for me to understand baluns i suspect that i should have read the book about transmission line transformers first and then. Book, reference, sevick, w2fmi, understanding, building, and using. I was a little disappointed in the construction details.

If you really want to learn about serious balun design, please buy the following book from cq communications or the arrl bookstore and educate yourself about baluns. Thriftbooks sells millions of used books at the lowest everyday prices. Apr 28, 2010 open library is an initiative of the internet archive, a 501c3 nonprofit, building a digital library of internet sites and other cultural artifacts in digital form. Understanding, building, and using baluns and ununs from cq. If you are designing baluns you should have this book. Yagi, trap tribander comtek jerry sevick w2fmi series current baluns were inspired by the writing of jerry sevick, as published in his book understanding, building, and using baluns and ununs also available from dx engineering. To understand and apply these transformers, one must be familiar with transmission line theory, con ventional transformers, and general circuit theory. Practical designs for the experimenter and a great selection of related books, art and collectibles available now at. Building and using baluns and ununs by w2fmi, jerry sevick. Practical designs for the experimenter by sevick, jerry and a great selection of related books, art and collectibles available now at. Understanding, building, and using baluns and ununs from cq communications offers clear explanations of how and why baluns and ununs work. Find signed collectible books by jerry sevick building and using baluns and ununs. He undertook the characterization and design of transformers for low impedance applications, resulting in his book transmission line transformers, published in 1987 by the arrl.

Jerry sevick, w2fmi sk american radio relay league. We personally assess every book s quality and offer rare, outofprint treasures. Rent understanding, building, and using baluns and ununs theory and practical designs for the experimenter 1st edition 9780943016245 and save up to 80% on textbook rentals and 90% on used textbooks. Click the button below to add the understanding, building, and using baluns to your wish list. Understanding, building and using baluns and ununs by jerry. Theory and practical designs for the experimenter by jerry sevick online at alibris uk. Theory and practical designs for the experimenter jerry sevick published by cq communications, hicksville, new york 2003. Open library is an open, editable library catalog, building towards a web page for every book ever published.

Jun 01, 2003 buy understanding, building, and using baluns anf ununs. Everyday low prices and free delivery on eligible orders. The understanding baluns part of the title seems covered a bit too superficially. Feb 05, 2010 in some ways the two books are complimentary, although tlt is newer. Buy both the book and cd and save see baluns combo. Understanding, building and using baluns and ununs theory and practical designs for the experimenter. Guanella balun is the basic building balun building block. Understanding, building, and using baluns anf ununs. He also wrote understanding, building and using baluns and ununs. Cq communications publications sevickbalcd free shipping. Isbn 9780943016092 9780943016092 softcover, cq communications, 1995.

Cq communications understanding, building, and using. For more information on winding details there is a lovely book by jerry sevick w2fmi called understanding, building and using baluns and ununs, theory and practical designs for the experimenter which is a brilliant book. Practical designs for the experimenter by communications cq, jerry sevick online at alibris. Theory and practical designs for the experimenter by jerry sevick online at alibris. Read the above book and you will have a good understanding of how to pick the proper ferrite and wind baluns as well as ununs. Nfarl antenna special interest group sig selfstudy reading assignments month 4 feedlines, baluns and chokes what, why and where week 1 for net discussion on 04082010. If you want a balun connect the so239 ground to the center tap of the toroid and connect the so239 center pin to either binding post. Top american libraries canadian libraries universal library community texts project gutenberg biodiversity heritage library childrens library. This book is a good read to understand how the balun unun works. He also wrote understanding, building and using baluns and ununs and the short vertical antenna and ground radial. Understanding, building, and using baluns and ununs may. May 15, 2003 understanding, building, and using baluns and ununs book. Book depository books with free delivery worldwide. Buy a cheap copy of understanding, building, and using.

Comtek jerry sevick w2fmi series current baluns combal. Chokes, baluns and ununs a wcares presentation based upon information garnered from books and the internet from amidon, wikipedia, jerry sevick w2fmi, tom rauch w8ji, and technical notes from dx engineering and balun designs. As a result the two new books will be entitled understanding, building, and using baiuns and ununs and the short vertical antenna and ground radial. Both of these should be on amazon thats were i got mine. In the worst case with a bad set of parameters you can lose 10db or more. The building and using baluns and ununs part of the title seems to be covered pretty well. There have been many advancements in this area in recent years, due to availability of more advanced test equipment.

Understanding, building and using baluns and ununs. Practical designs for the experimenter paperback february, 1995 by. The baluns are shown as schematically as parallel inductors. Discussion in general technical questions and answers started by kd0cac, feb 5, 2010. Full text of understanding building and using baluns and. Cq communications understanding, building, and using baluns. Understanding building and using baluns and ununs theory and practical designs for the experimenter. Understanding building and using baluns and ununs theory and practical designs for. Practical designs for the experimenter by sevick, jerry and a great selection of related books, art and. Discover delightful childrens books with prime book box, a subscription that delivers new books every 1, 2, or 3 months new customers receive 15% off your. Nfarl antenna special interest group sig selfstudy reading assignments month 4 feedlines, baluns and chokes what, why and where week 1 for net discussion on 04082010 transmission line theory basic theory of transmission arrl antenna book, pp.

348 128 336 806 1079 628 851 178 1002 33 101 358 804 1427 1215 1471 522 1047 106 1483 1222 1003 646 1209 1049 1354 576 1106 811 1349 1368 1237