MHz (Megahertz) - definition Megahertz is a bigger unit to measure the frequency. 1 MHz is equivalent to 1000 KHz. In mobile devices we see this parameter in different sides such as SIM network bands or in FM Radio Signal Frequency. Related Terms:802.11ac802.11nBandCDMA (Code-Division Multiple Access)Clock CycleEGSM (Extended GSM)FrequencyNFC (Near Field Communication)Quad-band