R&D Report 1965-36 : Statistical survey of scanning amplitudes and aspect ratio of domestic television receivers R.F. Vigurs Measurements have been made on a number of domestic television receivers, operating under normal home conditions, with regard to their settings of horizontal and vertical scanning amplitudes and aspect ratio. These measurements revealed that the accuracies of the adjustments made on installation, and the standard maintained by the receivers, in these respects, were...
Topics: picture, visible, aspect, receivers, distributions, histograms, statistical, width, ratio, height,...
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An TV on fire
favoritefavoritefavoritefavoritefavorite ( 1 reviews )
Topics: TV, Fire, Smash, Kid, Test Card, on, It
R&D Report 1962-06 : The Visibility of small brightness differences in television displays. G.F. Newell, W.K.E. Geddes This report describes measurements of the smallest brightness difference which can be reliably identified in television displays. The amplitude of the brightness difference is plotted as a function of the brightness level at which it can be just recognized. An estimate is made of the number of discrete levels into which a television picture should be quantized in order to...
Topics: brightness, numerals, waveform, picture, amplitude, superimposed, visibility, levels, monitor,...
R&D Report 1976-28 : Hadamard transformation: Assessment of bit-rate reduction methods. C.K.P. Clarke This report is concerned with the bit-rate reduction of signals produced by Walsh-Hadamard transformation of PCM television signals. The main characteristics of the transform signals are outlined and the methods of linear and non-linear coding used to reduce their bit rate are described. It was found that, with linear coding, a slightly higher bit rate is required to describe the transform...
Topics: transform, bits, coefficients, signal, coding, hadamard, errors, signals, impairment, sampling,...
From the bitsavers.org collection, a scanned-in computer-related document. hp :: 9000 300 :: specs :: A-98561-66512-3 Test Procedure for 98561-66512 CPU Bd Aug85
Topics: test, boards, aging, cpu, monitor, unit, failure, procedure, hewlett, board, test procedure,...
R&D Report 1974-10 : CEEFAX: Interference with television from data signals transmitted in the field-blanking period G.M. Le Couteur This Report presents the results of engineering broadcast tests which were carried out during the early part of 1973 to examine the suitability of certain lines in the television field-blanking interval for the transmission of CEEFAX digital data signals. It was concluded that lines 17 and 18 were preferred for this purpose.
Topics: data, lines, tests, sawtooth, impairment, flyback, observers, test, picture, interference, vertical...
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Soundtracks, library and television music hosted by Jonny Trunk. Today - Morricone Pop! We examine exceptionally rare Morricone collaborations. All non soundtrack works, these superb records date from 1958 and run through to about 1965, crossing from classic Italain pop to jazz and more experimental recordings.We'll also be playing the rarely heard Pastures OF Plenty, the 1962 pop vocal by Pete Tevis that was to become A Fistful Of Dollars three years later.
Topics: Resonance 104.4FM, Resonance FM, 104.4, OST, Jonny Trunk, Trunk Records, Morricone, Morricone Pop,...
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Soundtracks, library and TV music with Jonny Trunk. This week's special guest is Radiophonic Workshop legend Paddy Kingsland.
Topics: Resonance 104.4FM, Resonance FM, 104.4, OST, Jonny Trunk, Trunk Records, Test Card, Library,...
R&D Report 1968-41 : Spatial filtering applied to film printing: Some fundamental considerations A.H. Jones Some of the fundamental properties of imaging systems using coherent illumination are discussed, and the basic technique of spatial filtering is described. A means whereby the technique might be extended to allow some compensation to be made for colour film printing losses is then proposed. Certain important fundamental and practical difficulties are incurred in such an arrangement,...
Topics: spatial, image, fourier, amplitude, transparency, distribution, filtering, plane, filter, pinhole,...
R&D Report 1964-69 : Production of sinusoidal resolution bar patterns for inclusion in the television Test Cards 'D' and 'E'. T.N.J. Archard, D.H Rumsey, R. Sims The methods previously used for the production of sinusoidal bar patterns are first discussed and their limitations given. A modified form of one of these systems using rotating Polaroid filters and a travelling slit is fully described together with the methods used in determining the various parameters and details of processing of...
Topics: slit, density, polaroid, sinusoidal, rotating, enlarger, bar, patterns, bars, test, sinusoidal...
Apple Documentation: Apple IIe Functional Test Card Technical Procedures
Topics: test, traveler, slot, display, key, message, monitor, press, functional, functional test, test...
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Soundtracks, library and television music plus other assorted ephemera brought to you this week by Robin The Fog. Having just released 'The Ghosts Of Bush', a well-received LP of his recordings of the former World Service building Bush House and earning himself the title of 'The BBC's Resident Hauntologist', it seemed only good and right to invite Mr. Fog to present a special edition of the programme looking at the BBC's own in-house label and some of the weird and wonderful records they've put...
Topics: Resonance 104.4FM, Resonance FM, 104.4, OST, Jonny Trunk, Trunk Records, Robin The Fog, The Ghosts...
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07/10
by
Paussinappula Foundation
movies
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I was zapping TV channels and thought that Let's watch news from Beijing... oh... I forgot that it's night time over there when It's 10:20 PM here.
Topics: CCTV2, china, bejing, TV, testcard, test card, Paussinappula Foundation
R&D Report 1988-12 : The visibility of noise in System I PAL colour television. A. Oliphant, K.J. Taylor, N.T. Misson The results of new subjective tests on the visibility of noise in System I PAL colour television are reported. Three forms of noise are considered: white (flat) noise; de-emphasised triangular noise; the noise resulting from vestigial sideband demodulation (VSB noise). The results are compared with those given by work published 20 years ago and it is concluded that observers...
Topics: noise, tests, impairment, triangular, pal, series, vsb, chrominance, weighting, test, impairment...
Apple Documentation: IC Tester card
Topics: tested, diskette, test, ctrl, testing, xxxxxxxx, testool, yih, software, test card
From the bitsavers.org collection, a scanned-in computer-related document. hp :: 9000 300 :: specs :: A-98561-66519-3 Test Procedure for the 98561-66519 CPU Bd Oct85
Topics: test, boards, aging, cpu, hewlett, monitor, packard, unit, failure, procedure, test procedure,...
R&D Report 1978-24 : Television re-broadcast links: alleviation of off-set co-channel interference by means of simple video notch filters. J.L. Eaton, H.M. Price The subjective visibility of co-channel interference on television pictures may be reduced by the insertion of a simple notch filter in the video output of a receiver when the interfering source has a carrier off-set relationship with the wanted source. Filters designed for this purpose introduce some degradation on certain types...
Topics: filter, notch, filters, khz, frequency, interference, degradation, offset, test, picture, grade...
R&D Report 1967-10 : Test card 53: a test card for checking the spectral sensitivity of image orthicon camera tubes H.A.S. Philippart It has been apparent for some time that a simple and accurate test card is required to test the spectral response of image orthicon camera tubes, and Test Card 53 was devised for this purpose. It consists of six narrow band-pass dielectric filters with peak wavelengths located within the visible spectrum, and two reference filters set to +/- 10% of the...
Topics: spectral, filters, test, camera, response, orthicon, tube, filter, test card, reference, spectral...
R&D Report 1973-23 : Digital line store standards conversion: Determination of the optimum interpolation aperture function G.M. Le Couteur The work described in this report consisted mainly of a series of subjective tests with the aim of exploiting the extreme flexibility which can be built into digital line-store converters. This report presents the experimental results which follow from the mainly theoretical work described earlier in the companion Research Department Report No 1972/28....
Topics: interpolation, aperture, tests, subjective, interpolator, errors, bbc, apertures, converter,...
R&D Report 1965-43 : Transmission of 625-line television signals in Bands I and III S.M. Edwardson The 625-line transmission standard used in the United Kingdom employs r.f. channels 8 Mc/s wide, which could not be accommodated in the v.h.f. Bands I and III without reducing the number of channels available. Two proposals have been made for modifying the standard to enable the existing 5 Mc/s channels to be used. In the first proposal, the video-frequency bandwidth of approximately 4.5. Mc/s...
Topics: observers, receiver, subjective, frequency, technical, transmissions, vision, bandwidth,...
TheSpectrumShow003
Topics: game, spectrum, games, arcade, screen, graphics, sinclair, modem, ship, asteroids, character based,...
From the bitsavers.org collection, a scanned-in computer-related document. univac :: military :: bogart :: PX824 Bogart Computing System Navy Model CXPK Test Equipment Dec57
Topics: test, output, switch, memory, magnetic, cxpk, chassis, tester, circuit, test card, magnetic switch,...
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Input - Vol 4 No 47 (1997)(Marshall Cavendish)(GB)
Topics: goto, gosub, print, program, return, processor, cls, data, stack, memory location, marshall...
R&D Report 1971-34 : Channel 21 television transmissions: Interference to services below 470 MHz R.V. Harvey Some types of communication equipment that are used by public services at frequencies in the private mobile radio band operate just below 470 MHz. The results are given of laboratory tests to determine the susceptibility of this equipment to interference from lower-sideband radiation from Channel 21 television transmitters. The operational factors affecting the incidence of...
Topics: interference, mhz, khz, frequency, sideband, channel, transmitter, receiver, television, signal,...
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Soundtracks, library and television music hosted by Jonny Trunk. Today - Morricone Pop! We examine exceptionally rare Morricone collaborations. All non soundtrack works, these superb records date from 1958 and run through to about 1965, crossing from classic Italain pop to jazz and more experimental recordings.We'll also be playing the rarely heard Pastures OF Plenty, the 1962 pop vocal by Pete Tevis that was to become A Fistful Of Dollars three years later.
Topics: Resonance 104.4FM, Resonance FM, 104.4, OST, Jonny Trunk, Trunk Records, Morricone, Morricone Pop,...
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Oct 8, 2019
10/19
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Unknown
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FOCUS
Topics: Focus, focus chart, focus film, test film, calibration, calibration film, test pattern, test card
R&D Report 1977-20 : BBC Test Card No 61 (flesh tone reference): colorimetric and other optical considerations. E.W. Taylor, S.J. Lent Colour matching errors between a group of television cameras of the same type are normally corrected by colour trimming adjustments based on the subjective assessment of a flesh tone. Various colour references have been used for this purpose but all have certain disadvantages. The colorimetric and optical characteristics of a new test card which provides an...
Topics: test, flesh, tone, spectral, chromaticity, characteristics, colour, reflectance, test card, chart,...
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This weekly programme is dedicated to film music, TV music, library music and related recordings, and is hosted by Jonny Trunk. Today on the OST Show he's joined by John Flannery, member of the test card circle. We've been waiting an age to get one of the test card enthusiasts on the show, we're thrilled John is coming. Expect two hours of classic TV interludes and more besides. Each week the OST Show welcomes a guest (a collector, composer, director, artist) or specialises in a specific film...
Topics: Resonance 104.4FM, Resonance FM, 104.4, OST, Jonny Trunk, Trunk Records, John Flannery, Test Card,...
From the collections of the Sparrows' Nest Library and Archive. Anarchist Lancaster Bomber #?? Published Dec 1993. Published by Green Anarchist Network. Magazine/Journal/Paper/etc Section Public Archive A English Unnumbered issue; looks like page 3 is missing from the digitised version, but page 3 was blank in the original. Originally at http://www.thesparrowsnest.org.uk/collections/public_archive/8193.pdf
Topics: sarajevo, anarchist, bosnian, die, revolt, serbian, recuperation, disneyworld, dorah, mag, test...
R&D Report 1963-18 : Visibility of small luminance perturbations in television displays. G.F. Newell, W.K.E. Geddes Measurements of the visibility of small-magnitude luminance perturbations at various parts of the grey scale have been carried out using television displays. (This report includes, in a revised and condensed form, material already published in Research Department Reports T-083 and T-092, as well as the results of further work carried out since these reports were written). The...
Topics: luminance, visibility, noise, random, displayed, pattern, test, signal, experiments, perturbing,...
Apple Documentation: Fairy IC Test Card Manual alt
Topics: tested, diskette, ttl, testool, ctrl, test, testing, display, press, test card, press ctrl, floppy...
Topics: ram, test, data, vss, cpu, midi, lcd, transmitted, rom, check, fail ram, wave rom, voice data, test...
BBC Monograph 69: A Survey of the Development of Television Test Cards Used in the BBC. G. Hersee.
Topics: test, bbc, cards, camera, colour, frequency, bars, picture, test card, broadcasting, television...
