hata

Hata is a term with multiple meanings in different languages and disciplines. In Turkish, hata means error or mistake, and it is used in everyday language as well as in technical or formal contexts. In onomastics, Hata is a Japanese surname and can appear in place names or personal names. In telecommunications, the Hata model is an empirical path-loss model used to predict radio signal attenuation in mobile networks.

In Turkish usage, hata denotes any error or flaw. It appears in phrases such as hata yapmak (to make a mistake) and hatalı (faulty or mistaken). The term is common across domains, including education, engineering, software development, and error reporting, where precise identification and description of an error are important.

As a surname, Hata occurs in Japanese contexts and may be found in various Romanized forms. It can appear in family names and less commonly in place names or historical references within Japan and among Japanese communities abroad.

In wireless communications, the Hata model, named after Masaharu Hata, provides an empirical formula to estimate mean path loss for ground-based mobile radio systems. It extends the Okumura model with simplified expressions suitable for practical planning in urban, suburban, and rural environments. The model is typically applied to frequencies in the roughly 150 MHz to 1500 MHz range and accounts for factors such as base-station height, mobile-station height, and environmental category. While newer propagation models and regional refinements have been developed, the Hata model remains a widely cited reference in cellular network planning and analysis.