Bell System Technical Journal, 32: 1. January 1953 pp 63-73. Intermodulation Interference in Radio Systems: Frequency of Occurrence and Control by Channel Selection. (Babcock, Wallace C.)
Topics: channels, products, interference, intermodulation, consecutive, band, order, operating, operating...
R&D Report 1968-37 : Aspects of frequency-division-multiplex colour systems for television field-store standards converters D.W. Osborne This report describes an investigation into certain aspects of a proposal to use a frequency-division-multiplex system for the transmission of a colour television signal through the 'advanced' Field-Store Standards Converter. The investigation showed that the use of such a system, within the band-width of currently-available ultrasonic delay, would be...
Topics: intermodulation, order, signal, luminance, interference, unit, delay, frequencies, signals,...
R&D Report 1974-35 : The subjective effect of intermodulation distortion when sound and vision signals are amplified in a common amplifier P. Shelswell This report examines the relationship between the subjective and objective effects of intermodulation impairments introduced into 625-line system I television systems, when sound and vision signals are amplified in a common amplifier. The variation of impairment with sound modulation is discussed. No account is taken of the distortion of the...
Topics: intermodulation, sound, subjective, impairment, signal, dbp, modulation, distortion, test, level,...
R&D Report 1979-14 : Digital recording using hologram arrays: optical design for an experimental 100 Mbit/s recorder. K. Hacking, J.L. Riley The general arrangements used in the construction of an experimental recorder are outlined and several optical design features of the proposed system are discussed in detail. These include the concepts underlying the design of a digit-beam array forming a hologram 'page' and the optical methods for recovering the digital information. The optimum...
Topics: beam, deflector, optical, array, aperture, scanning, lens, hologram, recording, digital, optical...
R&D Report 1977-39 : Direct satellite broadcasing: intermodulation between multiple FM sound subcarriers. M.J. Kallaway The report describes an experimental study of the effects of intermodulation between multiple fm sound subcarriers. Such a system could provide supplementary sound channels for satellite broadcasting, where the subcarriers would frequency-modulate a 12 GHz carrier. The report concludes that a system using twelve fm sound subcarriers is very sensitive to intermodulation. To...
Topics: subcarrier, subcarriers, mhz, deviation, signal, carrier, intermodulation, frequency, amplitude,...
From the bitsavers.org collection, a scanned-in computer-related document. national :: appNotes :: AN-0884
Topics: noise, input, power, figure, frequency, output, gain, signal, dut, semiconductor, noise figure,...
R&D Report 1984-12 : The susceptibility of aeronautical navigational aids to interference from adjacent-band broadcast transmissions. G.H. Millard Measurements to determine the susceptibility of some airborne navigation receivers to interference from v.h.f/f.m sound transmissions are described. The measurements were designed to investigate both the response to interference radiated in-band and to intermodulation in the receivers . The results of the measurements were submitted to an ITU...
Topics: receiver, ils, interference, intermodulation, frequency, signal, mhz, broadcast, transmissions,...
R&D Report 1984-02 : Intermodulation between VHF/FM broadcast transmitters and the protection of adjacent-band aeronautical services. G.H. Millard Mechanisms are described by which VHF/FM broadcast transmitters can intermodulate and radiate low-level signals which may lie in the adjacent aeronautical services band. Measurements of the levels of intermodulation products at typical stations are given and ways in which these may be reduced in the future are indicated. It is concluded that...
Topics: intermodulation, transmitter, frequency, products, antenna, aeronautical, levels, transmitters,...
Bell System Technical Journal, 58: 7. September 1979 pp 1617-1629. Laser Transmitters for 70-MHz Entrance Links. (Chen, F.S.; Karr, M.A.; Shumate, P.W.)
Topics: laser, lasers, noise, transmitters, intermodulation, fiber, distortion, modulation, injection,...
BBC Monograph 53: Aerial Distribution Systems for Receiving Stations in the l.f., m.f., and h.f. Bands. J.B. Izatt.
Topics: amplifier, octave, amplifiers, circuit, output, valves, feedback, bbc, gain, aerial, distribution...
From the Frostbyte BBS shareware collection.
Topics: intermod, program, data, products, intermodulation, user, bytes, transmitters, prompts,...
R&D Report 1964-25 : Aerial distribution systems for the monitoring services. J.B. Izatt The factors affecting the design of distribution systems for monitoring services in the low-, medium- and high-frequency bands are considered and a number of experimental amplifiers is described. The intermodulation products generated in amplifier are at a very low level, and the methods of achieving the linearity required are discussed.
Topics: amplifier, octave, amplifiers, circuit, distribution, filters, feedback, output, aerial, valves,...
