Ülemooduliseeritud

Ülemooduliseeritud is an Estonian term that translates to "over-modulated" or "excessively modulated" in English. It is primarily used in the context of telecommunications and radio transmission to describe a signal that has been modulated beyond its intended or optimal parameters. Modulation is a process of impressing information onto a carrier wave, typically by altering its amplitude, frequency, or phase.

When a signal is over-modulated, it means that the extent of these alterations is too great. In amplitude modulation (AM), over-modulation results in the amplitude of the carrier wave dropping to zero or even becoming negative during certain parts of the modulating signal. This causes severe distortion, making the transmitted information difficult or impossible to decode accurately. In frequency modulation (FM), over-modulation can lead to excessive frequency deviations, potentially causing interference with adjacent channels or producing distorted audio.

The consequences of over-modulation include reduced signal quality, increased noise, potential for signal clipping, and inefficient use of the radio spectrum. It can also lead to the generation of unwanted sidebands that interfere with other radio communications. Proper modulation techniques and careful control of modulation depth are essential in radio engineering to prevent over-modulation and ensure clear and reliable transmission of information. This is typically achieved through the use of limiters and other signal processing circuits.