fixed frequency
[/ˈfɪkst ˈfrikwənsi/]
nounpl: fixed frequencies
frequência fixa
1. A constant and predetermined frequency that does not change or vary over time, typically used in communications, electronics, or physics
The radio station broadcasts at a fixed frequency of 98.5 FM.
A estação de rádio transmite em uma frequência fixa de 98,5 FM.
2. In telecommunications and electronics, a frequency that remains stable and unmodulated for the duration of operation
The device operates on a fixed frequency to avoid interference with other signals.
O dispositivo opera em uma frequência fixa para evitar interferência com outros sinais.
3. A preset oscillation rate in electronic equipment that is locked and cannot be changed without adjustment
The fixed frequency oscillator ensures consistent performance across different operating conditions.
O oscilador de frequência fixa garante desempenho consistente em diferentes condições de operação.
This is primarily technical terminology used in telecommunications, radio broadcasting, electronics engineering, and physics. It is more common in professional and academic contexts than in casual conversation. In Brazil, the term is essential in the radio and telecommunications industries, while in the USA it is standard in engineering documentation and FCC regulations.
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