Frequency

Converts frequency between hertz, kilohertz, megahertz, and gigahertz, and converts drift rates in parts per million or per billion per year. Drone operators use it for radio bands, and surveyors and timing engineers for oscillator drift. Start with the frequency converter. Pitfall: a drift in ppm is relative, so the same ppm means a bigger shift at a higher frequency. Convert it to hertz at your own frequency before you compare two parts.