Wireless |
Contents
CHAP | 7 |
SYNTONIC SPARK TELEGRAPHY | 64 |
BEAM TRANSMISSION | 121 |
Copyright | |
1 other sections not shown
Common terms and phrases
acoustic adjusted alternating current amplifier amplitude anode circuit anode current anode voltage antenna anti-nodes apparatus battery broadcasting capacitance carrier wave cathode centimetres charge choke coherer coil condenser conductor connected continuous waves control grid crystal detector curve decibels detection detector difference frequency direction distance earth elec electric force electric waves electro-magnetic electro-motive force electrons emitted employed energy equal filament grid bias H. J. Round harmonic Hertz Hertzian oscillator heterodyne heterodyne method high frequency high-frequency increased inductance ionized kc/s length lines of force local oscillations Lodge loop magnetic force metal metres long microphone miles modulated Morse motion nodes operator oscilla output paragraph pass positive potential produced Prof quency radiation Radio reactance receiving station resistance resonant circuit screening grid sending station short waves short-wave signals sine spark strength telegraphy telephone tetrode tion train of waves transformer triode tube tuned U.K. patent utilized variations vertical vibration voltage volts wave-length wire wireless