Television Reception Technique |
From inside the book
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Page 14
... Alexandra Palace transmitter working on 6-6 metres would fall off very con- siderably beyond a minimum distance of 25 to 30 miles . It was assumed that the effective range would tend towards the optical limit . Observation on the Alexandra ...
... Alexandra Palace transmitter working on 6-6 metres would fall off very con- siderably beyond a minimum distance of 25 to 30 miles . It was assumed that the effective range would tend towards the optical limit . Observation on the Alexandra ...
Page 93
... Alexandra Palace transmitter is 25 miles , although successful reception has been carried out at far greater distances . Before considering the design of a particular receiver , we must obviously decide what form of aerial is to be used ...
... Alexandra Palace transmitter is 25 miles , although successful reception has been carried out at far greater distances . Before considering the design of a particular receiver , we must obviously decide what form of aerial is to be used ...
Page 141
... Alexandra Palace under conditions where the field strength is exceptionally low , and the interference to signal ratio is very poor . Comparative tests seem to indicate that the arrangement is far less susceptible to interference than ...
... Alexandra Palace under conditions where the field strength is exceptionally low , and the interference to signal ratio is very poor . Comparative tests seem to indicate that the arrangement is far less susceptible to interference than ...
Common terms and phrases
30 per cent Accordingly adjusted aerial Alexandra Palace ALTERNATING CURRENT amplifier amplifying valves amplitude anode anode load anode voltage application network applied arrangement B.Sc bias capacitance carrier value cathode tube characteristic co-axial co-axial cable coil condenser conductor connected control grid correct coupling D.Sc decoupling deflection demodulator diode diode load dipole effect ELECTRICAL electronic electrostatic tube employed ENGINEERING feeder fly-back frame pulses frame scan frame synchronizing frequency changer gas relay impedance impulses inductance input interlace intermediate frequency light line and frame line scan linear M.Sc magnetic modulation necessary obtained obviously ohms operating oscillator output pentode picture PITMAN possible potential potentiometer PRACTICAL produce raster reception resistance screen Second Edition shown in Fig signal sound spot suitable superheterodyne receiver Synch synchronizing circuit synchronizing pulse telephony television Third Edition transmission line transmitted tuned circuit TUNING SIGNAL variation vision receiver volts wave-form wavelength whilst