Items related to Theory of Determination of Ultra-Radio Frequencies...
Theory of Determination of Ultra-Radio Frequencies by Standing Waves on Wires (Classic Reprint) - Softcover
Excerpt from Theory of Determination of Ultra-Radio Frequencies by Standing Waves on Wires
Accurate knowledge of the frequency of the waves and the currents used in radio communication is of great importance, and the Bureau of Standards has recently increased the accuracy of its standard of radio frequency. The standard has been estab lished by methods1 which cover a wide range of frequencies and which give the desired accuracy. One2 of the methods is based on the use of very short waves, the length of which is directly measured on a system of parallel wires. The standard wave meter may be compared with the frequencies of these short waves by means of the harmonics from a local generating set.
A similar procedure was used in the earliest days of radio.8 There are, however, three essential differences between the parallel-wire system employed by the Bureau of Standards and the classical two-wire system, namely: (a) the high-frequency voltages are impressed on the wires instead of being caused by discharges originating on the wires; (b) they are sustained in stead of being damped; and (c) a current-indicating instrument is used instead of a device for measuring voltage.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Accurate knowledge of the frequency of the waves and the currents used in radio communication is of great importance, and the Bureau of Standards has recently increased the accuracy of its standard of radio frequency. The standard has been estab lished by methods1 which cover a wide range of frequencies and which give the desired accuracy. One2 of the methods is based on the use of very short waves, the length of which is directly measured on a system of parallel wires. The standard wave meter may be compared with the frequencies of these short waves by means of the harmonics from a local generating set.
A similar procedure was used in the earliest days of radio.8 There are, however, three essential differences between the parallel-wire system employed by the Bureau of Standards and the classical two-wire system, namely: (a) the high-frequency voltages are impressed on the wires instead of being caused by discharges originating on the wires; (b) they are sustained in stead of being damped; and (c) a current-indicating instrument is used instead of a device for measuring voltage.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
"synopsis" may belong to another edition of this title.
- PublisherForgotten Books
- Publication date2017
- ISBN 10 0282481346
- ISBN 13 9780282481346
- BindingPaperback
- Number of pages72
Buy New
Learn more about this copy
US$ 19.11
Shipping:
FREE
Within U.S.A.
Top Search Results from the AbeBooks Marketplace
Stock Image
Theory of Determination of UltraRadio Frequencies by Standing Waves on Wires Classic Reprint
Seller:
Rating
Book Description PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9780282481346
Buy New
US$ 19.11
Convert currency
Stock Image
Theory of Determination of Ultra-Radio Frequencies by Standing Waves on Wires
Published by
Forgotten Books
(2017)
ISBN 10: 0282481346
ISBN 13: 9780282481346
New
Paperback
Quantity: > 20
Seller:
Rating
Book Description Paperback. Condition: New. Print on Demand. Excerpt from Theory of Determination of Ultra-Radio Frequencies by Standing Waves on Wires. About the Publisher, Forgotten Books publishes hundreds of thousands of rare and classic books. This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works. This text has been digitally restored from a historical edition. Some errors may persist, however we consider it worth publishing due to the work's historical value. The digital edition of all books may be viewed on our website before purchase. print-on-demand item. Seller Inventory # 9780282481346_0
Buy New
US$ 15.13
Convert currency
Stock Image
Theory of Determination of UltraRadio Frequencies by Standing Waves on Wires Classic Reprint
Seller:
Rating
Book Description PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9780282481346
Buy New
US$ 18.15
Convert currency