megahertseinä

Megahertseinä is a Finnish-language expression used to refer to quantities expressed in megahertz (MHz), the frequency unit equal to one million hertz. The term is formed from megahertsi, the Finnish name for the unit Hertz scaled by the mega- prefix, and is encountered in technical writing and everyday speech when MHz values are discussed. In Finnish contexts, megahertseinä signals that a measurement or specification is given in megahertz rather than in hertz or gigahertz.

A hertz measures cycles per second, and a megahertz represents 10^6 cycles per second. The concept is central to how signals are generated, transmitted, and interpreted in electronics and communications. While frequency describes how often a waveform repeats, it does not directly specify data throughput or bit rate; those aspects depend on modulation, channel bandwidth, and protocol.

Megahertz appear prominently across several domains. In radio broadcasting, the FM band is typically expressed in megahertz (for example, 88–108 MHz). In mobile and wireless networks, frequency planning uses ranges that span hundreds to thousands of megahertz. In computing, processor and memory clocks were historically described in megahertz as well, though modern CPUs and memory often run in the gigahertz and beyond.

See also Hertz, Megahertz, Frequency.