**Technology / Television (TV) / Frequency:** The number of times per second that a signal fluctuates. The international unit for frequency is the hertz (Hz). One thousand hertz equals 1 khz (kilohertz). One million hertz equals 1 mhz (megahertz). One billion hertz equals 1 ghz (gigahertz). Television is broadcast in frequencies ranging from 54 mhz to 216 mhz (VHF) and 470 mhz to 806 mhz (UHF)

Technology / Radar / Frequency Modulated Continuous Wave Radar (FM CW Radar): Frequency modulated continuous wave radar makes use of frequency modulation to allow the range of a target to be measured. MORE

Technology / Radar / Wave Frequency: The number of cycle of waves that passes a point in one second. Frequency is measure in hertz (hz). Wave frequency is inversely proportional to wavelength. MORE

Technology / Home Audio / Cutoff Frequency Filters: The frequency at which a signal falls off by 3 db (the half power point) from it's maximum value. Also referred to as the -3 db points, or the corner frequencies MORE