. . . "12.75 GHz - 14.5 GHz" . . "petahertz" . . . . . . "MHz" . "hertz" . . "Hertz" . . "cycles per second" . . "5610kHz" . . . . "terahertz" . "Hertz#History" . "Hz" . "17.7 GHz - 20.2 GHz" . "Frequency (Hz)" . . . . "metres" . "25 Hz" . . . . . . . . . . . . "CPU clock speeds" . . . . . . . . "[MHz]" . "(kilohertz)" . "kHz" . . "Hertz observations" . . . . . . . . . "gHz" . . "Megahurtz" . . . . . "THz" . "10.7 GHz - 12.75 GHz" . . . . "12kHz" . . . . . . "Hz power" . . "540 THz" . . . "[Hertz]" . . . . . . . "mHz" . . "exahertz" . "megacycles" . "GHz" . . "hertz (Hz)" . . . . . . . . . . . . . "100 kHz" . "Hertz#SI multiples" . . . . . "times per second" . . . " MHz" . . . . . . . . . . . . . . . "megaHertz" . . . . . . . "MHZ" . "Gigahertz" . "Hertz" . . . "2 MHz" . . . . . "700 MHz" . . . "millihertz" . . . . . . "Hertz waves" . . . . . "Mhz" . . . . "Khz" . . . . "27.5 GHz - 30.0 GHz" . . . . . . . "cycle" . "45 Hz" . . . . . "hz" . . "KHz" . . . . "megahertz" . . "hertz (hz)" . . . . . . "Megahertz" . . "1 Hz" . . . . . . . "kilohertz" . . . "decahertz" . . . . . "PHz" . . . "gigahertz" . . . . . . .