Megahertz meaning

In legal practice, megahertz (MHz) describes the frequency of radio waves and the width of radio spectrum blocks used in telecommunications, broadcasting and wireless equipment matters, including spectrum auctions, spectrum licences and interference management. One megahertz equals one million hertz (cycles per second). Example: 900 MHz = 900,000,000 Hz (900 × 10^6 Hz). Lawyers will encounter MHz when identifying frequency bands (for example, the 700 MHz band), specifying channel bandwidths (for example, a 20 MHz block), drafting or interpreting Ofcom or ComReg spectrum licence conditions, assessing radio equipment conformity, and advising on coexistence and interference thresholds. “Megahertz” is a scientific unit rather than a standalone legal definition. Legislation and regulatory instruments in the UK and Ireland commonly express frequencies in MHz (for example, under wireless telegraphy and electronic communications frameworks), relying on the International System of Units (SI), which is adopted in both jurisdictions. Usage and meaning are consistent across England and Wales, Scotland, Northern Ireland and Ireland. Practical significance: MHz values determine propagation characteristics, coverage obligations, capacity, and spectrum valuation in transactions, as well as compliance with technical licence terms, emission limits and electromagnetic field (EMF) rules.