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  • COMMUNITY RADIO BROADCASTING IN ZAMBIA: A POLICY PERSPECTIVE by FACKSON BANDA
    An FM radio station broadcasting on 91.8 FM , it was set up by the Catholic Diocese .... With a 500watt transmitter , the station boasts ownership of state-of-the-art equipment, among which are: a production and transmission studio; master reel- to-reel machine for producing cassettes; dubbing machines; cassette and compact-disc (CD) printing facilities; wrapping machines … station draws its staff from among the members of the community, such as teachers and other professionals .
  • YUGOSLAVIAN ARMS MAKERS TARGET THE EXPORT MARKET
    …used in the following specific applications: 'generation of audio and video signals of professional quality; transmission and … search, acquisition, and jamming of frequency hopping emissions as well as quasi‐simultaneous jamming of multiple hostile transmitters . .... There are two new series of systems within a family of mobile VHF/UFH FM radio units. .... The series are identified as the MRS 500 and MRS 600 with the 600 series utilizing a .... The company has both VHF (15 Watt , 100‐150 MHz) and UFH (10 Watt, 225‐400 MHz) radio systems…
  • Institute News and Radio Notes
    Left to right: Raymond F. Guy, Sir Robert Watson- Watt , Simon Ramo, Frederick E. Terman, and Raymond … closed-loop industrial television system, filters for television interference caused by radio amateur transmitters , techniques that permit .... multiplication, and selection, a novel meth- od of frequency control which will keep FM and television receivers … of the electro- motive forces generated by the cardiac mus- cle, and a 500 -kw super-power … Thursday afternoon consisted of a symposium on Sound Recording sponsored by the Audio Professional Group, and technical…
  • Abstracts of IRE Transactions
    The channel input impedance is 500 k ohms and the channel response is accurate to ±0.5 .... The commutator consumes 1 watt from a single 45 volt supply, the accuracy being virtually unaffected by .... An Automatic Test Set for FM /FM Tele- metry Systems-H. .... measure- ments of adjacent channel interference due to wide and narrow band FM, AM, and SSBAM transmitters . .... Seventh National Conference, IRE Pro- fessional Group on Vehicular Communications, Single Side Band Panel Discussion-"Single Side Band AM for Mobile Communications?" (p. 19) .
  • Author Index
    …77 Jul 449 (2C03) Lochhead, D., J. Leaverton, and L. Javarone; Ka-band 500 Mbps terminal investigation … Manley, T. R., and C. W. McNichols; Shifts in the attitudes of R&D professionals toward unionization (NAECON … 597 (2C14) Park, J. H., Jr., and C. Chayavadhanangkur; Effect of fading on FM receptionwith cochannel interference .... receiver and transmitter component development (EASCON 77 Abstr.); T-AES 77 Nov 728 (2C01) Rauh, R. D … Jr., and P. G. Rouklove; Results of metallographical diagnostic examination of Navy half- watt thermoelectric converters degraded…
  • IRE News and Radio Notes
    …100 word abstract, in triplicate, including title of paper, name, and address; a 500 word sum- mary .... In FM broadcasting, new trends in multi- plexing will be examined with the accent on operational experience. .... will be sponsored by the American Institute of Electrical Engineers and the IRE Professional Group on In .... Five of the original broadcast station transmitters in the Pacific Northwest were built by him, as well .... As Chief Engineer for KOMO, he in- stalled the original 1000 watt transmitter at Fisher Flouring Mills…
  • Scanning the Transactions
    It has just been published by the IRE Professional Group on Medical Electronics, and is now available .... If we figure on a 10 watt transmitter aboard the vehicle operat- ing at 2250 mc, a 500 kc bandwidth receiver, and make certain reasonable assumptions concerning the characteristics of other parts of the system, it turns out we can readily span … as voltage variable capaciltors, are proving to be practical for fine tuning and FM automatic frequency control…
  • Abstracts and References
    G. Balcombe and D. E. Watt -Carter. .... going traffic from London is routed accordingly, being sent by transmitters at Portishead and Criggion (or Rugby … 1.3 and 3 Mc, and a nonresonant inverted L-antenna for the 500 - kc frequency band. .... The basic principles of de- sign for an FM broadcasting station are con- sidered and the precautions .... This book cannot be ignored by anyone with direct professional .
  • Advertisement
    …of the pre-war SX-28, rank- ing favorite with both amateur and professional operators, have been .... match 500 or 5000 ohms are provided and. .... Dependability in transmitter performance is a package of many features. .... Westinghouse 50,000- watt transmitters offer other advantages for clear channel service: The smartly-styled Westinghouse 50 .... 5, 10 and 50-kw AM, and 1, 3, 10 and 50-kw FM .
  • Institute News and Radio Notes
    Mr. Seaton commenced his professional career in 1929 with a magnetic survey of the Pacific Ocean from .... Mr. Wilner, who was engineer-in-charge of CBS television trans- mitter development, is a graduate electrical engineer. .... Mr. Wilner has been active in pulse, multiplex, and FM transmission. .... Among his engineering contributions in the communi- cations field are the design of the first 100- watt color UHF transmitter at 500 Mc; the first 1,000-watt UHF video transmitter for 490-550 Mc; the first 500-watt color and FM…