BBC Monograph 42: Apparatus for Television and Sound Relay Stations Translators, receivers and drive equipment. F.A. Peachey, R. Toombs, D.L. Smart.
Topics: translator, frequency, vhf, output, input, stations, broadcast, television, reception, transmitter,...
R&D Report 1965-39 : UHF aerials for the Hertford television relay station G.H. Millard A summary of the installtion of the UHF Aerials for the Hertford Television Relay Station.
Topics: aerials, transmitting, feeder, mounted, dipoles, oin, horizontal, aerial, distribution,...
R&D Report 1965-40 : UHF aerials for Tunbridge Wells television relay station G H Millard A summary of the installation of the UHF Aerials for the Tunbridge Wells Television Relay Station.
Topics: aerial, transmitting, aerials, horizontal, mounted, dipoles, transmitter, oin, distribution,...
R&D Report 1966-67 : Transmitting aerials for the Sky (Penifiler) VHF television and VHF sound relay station D.W. Osborne, R.D.C. Thoday The Skye (Penifiler) relay station came into operation on the 28th March, 1966. It provides a television and v.h.f. sound service to Portree only.
Topics: aerial, transmitting, horizontal, aerials, skye, gain, templet, band, polarization, yagi,...
R&D Report 1969-08 : Medium-distance overland tropospheric propagation measurements at UHF C.P. Bell This report gives the results of a series of long-term tropospheric propagation measurements carried out at UHF over a number of overland transmission paths of lengths ranging from 60 km to 150 km. These measurements, which supplement the data available for frequency planning, are compared with values estimated by two prediction methods. Comparisons of measurements over similar path lengths...
Topics: measurements, receiving, ccir, paths, correction, path, bbc, crystal, field, palace, protected...
R&D Report 1971-33 : UHF relay station aerials: the compensation of a 914mm diameter aerial cylinder by means of an inductive grating N.H.C Gilchrist, J.H. Moore When an aerial is mounted inside a dielectric cylinder, it is possible for reflections within the cylinder to affect the impedance and radiation pattern of the aerial. Theoretical and practical aspects of the use of inductive gratings at the surface of such a cylinder are presented in this report, together with the results of...
Topics: grating, cylinder, aerial, mhz, band, inductive, radiation, diameter, bbc, relay, pattern set,...
R&D Report 1978-05 : An improved correlation audio combiner for use with h.f. diversity receivers. D.E. Susans This Report describes improvements that have been made to a correlation audio combiner that was described in an earlier Report. Subjective tests are described which demonstrate that, under conditions of frequency-selective fading, the performance of the improved combiner is superior to that of present combining methods.
Topics: combiner, audio, signal, signals, subjective, input, output, correlation, ratio, outputs, improved...
R&D Report 1978-12 : A proposed method of data transmission from u.h.f. relay stations for remote monitoring. P. Shelswell This report examines a new system to provide a data link between a UHF television relay station and a monitoring and information centre. It shows that data can be transmitted with the broadcast signal and received outside the normal service area. There is a brief description of a practical test of the link.
Topics: framing, signal, data, code, errors, noise, error, receiver, transmission, relay, timing jitter,...
R&D Report 1981-05 : The use of remote active deflectors for feeding u.h.f. relay stations. G.H. Millard The role of active deflectors in providing programme feeds to u.h.f. television relay is discussed. Particular attention is given to the provision of power supplies at sites remote from mains electricity supplies.
Topics: battery, wind, aerials, solar, amplifier, relay, power, output, deflector, active, relay station,...
R&D Report 1987-14 : Improvements to a UHF rebroadcast television link suffering tidal fading: Countisbury UHF relay station. J.H. Moore The Countisbury UHF relay station serves the localities of Lynmouth and Lynton in Devon. For some time, the problems of co-channel interference and tidal fading have on occasion been evident. The report gives results obtained utilizing a new Rebroadcast Link (RBL) antenna array, which has improved very considerably the quality of signals received at this...
Topics: channel, array, antenna, countisbury, strength, relay, bbc, picture, phased, grade, video cassette,...
R&D Report 1993-04 : Alleviation of co-channel interference at Poole relay station J.H. Moore, A.I.E. Booker The Rowridge UHF television transmitting station, situated on the Isle of Wight, radiates the four principal UK domestic television channels to the south coast of England, and provides an off-air feed to a number of dependent relays. At one relay station (Poole), occasional Co-channel Interference (CCI) is known to occur. It is particularly noticeable during the summer and autumn...
Topics: offset, precision, channel, rowridge, relay, frequency, poole, interference, impairment, cci, total...
Order Wire Stations and In-Band Tone Ringers - Quindar Electronics Inc.
Topics: cps, tone, qowr, relay, output, interrupted, qowt, dbm, interruption, ringing, standard quindar,...
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Jan 25, 2015
01/15
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Panasonic
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Topics: enter, set, dialling, transmission, fax, document, memory, file, station, confidential, fax...
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Jan 25, 2015
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Panasonic
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Jan 24, 2015
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Panasonic
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Topics: enter, set, dialling, transmission, fax, document, station, file, memory, relay, fax parameter,...
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Jan 25, 2015
01/15
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Panasonic
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Topics: fax, dialing, enter, document, transmission, machine, telephone, relay, memory, station, fax...
Science Stories v01n01 (1953-10.Bell)(cape1736)
Topics: huber, eon, hathor, tethanni, science, stories, relay, commander, snake, science stories, fat man,...
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BBC Atlantic Relay Station , Ascension Island , Señal de Intervalo e identificación , en inglés. 6005 kHz , banda de 49m , emisión dirigida a Africa Sur occidental, abril de 1982.
Topics: BBC, relay station, shortwave, Ascension island, Atlantic Ocean, 1982
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Mar 7, 2021
03/21
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George Bowen, W2XBS
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This Week in Amateur Radio Edition #1149 Release Date: March 6, 2021 Here is a summary of the news trending This Week in Amateur Radio. This week's edition is anchored by Dave Wilson, WA2HOY, Don Hulick, K2ATJ, Eric Zitell, KD2RJX, Fred Fitte, NF2F, Will Rogers, K5WLR, George Bowen, W2XBS, and Jessica Bowen, KC2VWX. Produced and edited by George Bowen, W2XBS. Running Time: 1:36:30 Download Podcast here: https://bit.ly/TWIAR1149 Trending headlines in this weeks bulletin service: 1....
Topics: ARRL, FCC, shortwave, space, TWIAR, Amateur Radio, Ham Radio, Podcast, North America,...
