How Radio Signals Work
Most of us use radio waves every single day - and most of us have very little idea of how they work. In a reader-friendly style requiring no technical or mathematical background, this concise and clearly-written book explains the basics of radio signaling. You'll learn how energy carries information, messages are imprinted on energy, signals move across space, signals are detected and amplified, and electrons, watts, amps, volts, and other "mysterious beasties" work. If you're curious about the phenomena that make modern communications work ... if you want a fascinating, across-the-board tour of the entire field of radio communications, including career possibilities ... or if you want to buttress a radio license application, you've found the right book.
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allocated amplifier amplitude modulation antenna atom audio bandwidth broadband broadcasting capacitance carrier wave centre channel Chapter coaxial cable communication components conductor connection current flow cycle decibels detector direction distance driven element effect electrical circuit electrical conductors electrons energy equipment fault filter free space frequency modulation frequency range gain give graph half-wave dipole HF band impedance inductance input kilohertz kilometres layer limit load magnetic field maximum measured megahertz metres mobile noise normal ohms operation output particular passband path loss phase Phone polar diagram polarisation power flow power level principle propagation quarter-wave radiation resistance radio signals radio system radio waves radiofrequency range of frequencies ratio reactance reflected reflector resonant sidebands signal strength skip zone sky wave spectrum station switch television transceiver transmission line transmitter tuned circuit usually vertical voltage watts waveform wavefront wavelength wire zero