der radio amateur 1925: Bücher (8 Ergebnisse)

Zustand: New. In.

Zustand: New. KlappentextrnrnThis monograph conducts a historical study of the Army Amateur Radio System, the predecessor to the Military Auxiliary Radio System (MARS). In 2009, the Department of Defense changed the MARS mission to support homeland security f.

Taschenbuch. Zustand: Neu. Neuware - This monograph conducts a historical study of the Army Amateur Radio System, the predecessor to the Military Auxiliary Radio System (MARS). In 2009, the Department of Defense changed the MARS mission to support homeland security functions by using MARS to provide backup emergency communications to local, state, and federal authorities. Viewed as a new direction for MARS, the responsibility of providing emergency communications is the same mission that was ably conducted by the Army Amateur Radio System (AARS) prior to the United States entry into World War II. By understanding the history of the Army Amateur Radio System, MARS can better meet the challenges it faces today. The AARS was formed in 1925 to provide a pool of trained radio operators to augment the Signal Corps during mobilization in time of war and provide an extension of the Signal Corps' radio network to support civil authority with natural disaster relief efforts. While supporting military goals, the organization was composed of volunteer civilians who were accomplished radio amateurs. The AARS succeeded in developing the proficiency of its radio operators as demonstrated by the support provided to government authorities during natural disaster relief efforts. However, on the eve of the United Sates' entry into World War II, the Army Amateur Radio System's membership was significantly underdeveloped in numbers to provide significant manpower to augment the Signal Corps' mobilization for war.

Julius Springer Verlag, Bln., 1925. XVII/664 S. mit Abbildungen, Halbleinen der Zeit mit goldgeprägtem Rückentitel (Rücken etwas fleckig/Name auf Vorsatz)---Verlag: Julius Springer Verlag Verlag: Julius Springer Verlag - gutes Exemplar - 1470 Gramm.

Broschur. 66 Seiten mit zahlreichen Werbeeinschaltungen. - Aus dem Inhalt: Ultradyne L 2 und seine Bestandteile / Einfacher Detektorapparat / Über Verluste in Spulen / Drei Reflexschaltungen / Weihnachts-Radiospielerei / Drei Kurzwellenschaltungen / Praktischer Wellenmesser. - Einband Berieben, am Schnitt stockig, Papier mässig gegilbt, gute Bindung, keine Einträge etc., mit zahlreichen s/w-Abbildungen im Text. Werbeeinschaltungen von Tungsram, Varta, Sindag, Kapsch, Helikon, Vocaphon usw. - Bankverbindungen in Österreich und Deutschland. Size: Groß-Oktav (bis 25 cm).

XVII, 664, 8 S. 4°. Marmor. Halbleinenband d. Zt. mit Rückengoldtitel. - Vorsatzblätter stockfl. und gestempelt, Innen ordentlich. * "Unter ständiger Mitarbeit von Dr. Walther Burstyn-Berlin, Dr. Peter Lertes-Frankfurt a. Main, Dr. Siegmund Loewe-Berlin und Dr. Georg Seibt-Berlin u. a. m." (Titelblattangabe). Mit der oft fehlenden Beilage "Übersicht über die europäischen Rundfunksender" (8 Seiten). Nesper firmiert in Friedenau, Gehne in Lankwitz. Unter den Abhandlungen Beiträge von Manfred von Ardenne, Wilhelm Hering, Edmund von Herz, Hanns Mendelsohn, von Stockmeyer u. a. * (Ein Titel aus unserem Online-Katalog "Technik und Verkehr - Nachrichtentechnik: Amateurfunk, Radio, Rundfunk").

Originalleinen. 28 cm. Zustand: Sehr gut. XVII/664 Seiten mit zahlreichen Abbildungen SEHR gutes Exemplar Sprache: Deutsch Gewicht in Gramm: 1200.

Moscow: Trud i Kniga, 1924?1930. Quartos (31.5 × 23.5 cm). Original staple-stitched pictorial wrappers; 16?36 pp. per issue, with continuous annual pagination. Issues for 1924?1925 housed in original card portfolio. Issues for 1926?1927 bound in contemporary half-cloth album, with original wrappers preserved, trimmed to measure 30 × 21.7 cm. Wear to the portfolio; contents very good. Complete yearly runs (of the first three years) of the first Soviet radio journal published bi-weekly by the Association of Radio Amateurs (Obshchestvo radioliubitelei). Founded in August 1924, the Association of Radio Amateurs released the first issue of this journal in September. The opening issue announced: ?It is not an accident, but a characteristic fact that the first amateur radio magazine in the USSR arose from the depths of the workers? trade unions. It is enough to look at the illustrations of any foreign magazine to be convinced that radio there is, first of all, the property of the wealthy segments of the population. The one who is the master of life, enjoys the benefits of culture. It is not surprising, therefore, that in our country the love of the radio comes first of all from the worker youth.? A photograph of Lenin?s letter, in which he referred to the emerging radio technology as a ?newspaper without paper and distances? appears alongside the statement, promoting radio as a tool of political education and propaganda. The Association of Radio Amateurs was re-named Association of Friends of the Radio (Obshchestvo druzei radio: ODR) in December 1924.In the USSR as in other countries, the development of the radio as a technology and institution depended on the tinkering of amateur radio mechanics. As a volunteer-based organization, the OR and later ODR was "charged with marshaling the efforts of radio amateurs," from organizing clubs, lectures, and educational workshops, to publishing ? periodical and other literature for radio amateurs. In 1925 there were over 500 amateur radio clubs in Moscow alone, with 13,000 members in amateur clubs in Leningrad. By 1928 the ODR counted about 170,000 members in its ranks. With the efforts of these amateur builders, 70 percent of Soviet radios were home-made. In addition to "Radioliubitel?" (Radio amateur, 1924?1930), the ORD published ?Radio vsem? (Radio for all, 1925?1930), and "Radiofront" (1930?1941). As of October 2024, KVK, OCLC only show scattered issues at IISG Amsterdam.