R&D Report 1972-33 : Transmitting aerial distribution transformers and hybrids for use at low-powerUHF relay stations G.H. Millard The design and performance are given of four printed circuit distribution transformers and 3 dB directional coupler all for use with printed panel aerials at low-power UHF relay stations.
Topics: transformer, transformers, relay, coupler, bbc, uhf, hybrid, impedance, distribution, aerial, relay...

R&D Report 1973-33 : Measurements on typical arrangements of UHF panel aerials G.H. Millard, J.H. Moore Measurements of the impedance and radiation pattern of some typical UHF panel aerials have been made to determine the probable limits of performance variations when assembled from standard parts.
Topics: tilt, beam, aerial, panels, uhf, impedance, measurements, case, aerials, hybrid, radiation pattern,...

BBC Engineering 107, August, 1977. S.J. Davies, J.K. Levett, J.D. MacEwan, M.M. Gleave, W.I. Manson, J.K. Riley. * Principal Articles:Radio News Reporting in London * The Development of Sound-Programme Limiters in the BBC * Some Considerations on the Use of Pre-Amplifiers at Low-Power UHF Relay Stations.
Topics: bbc, limiter, input, signal, gain, limiters, amplifier, output, noise, aerial, uhf relay, relay...

R&D Report 1972-16 : UHF relay stations: distribution transformers for use with the standard horizontally-polarised RBL aerial G.H. Millard The design and performance are given of two printed circuit distribution transformers for use with the standard horizontally-polarised re-broadcast link (RBL) trough aerial.
Topics: transformer, rbl, transformers, relay, uhf, bbc, distribution, aerial, mhz, ratio, relay stations,...

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,...

Topics: NASA, JPL, msl, figure, uhf, antenna, rover, edl, spacecraft, data, descent, launch, descent stage,...