What is another word for power spectral density mask?
Pronunciation: [pˈa͡ʊə spˈɛktɹə͡l dˈɛnsɪti mˈask] (IPA) 
The power spectral density mask is a term often used in signal processing and engineering to describe the frequency response of a communication system. Synonyms for this term include the power spectrum mask, frequency mask, spectral mask, and channel mask. These terms all refer to the same concept of defining the allowable frequency range for a signal in a given communication system. The term power spectral density mask is often used in specific contexts, such as in wireless communication standards, where it is used to specify the maximum power that a signal can emit in different frequency bands. All of these terms are used interchangeably and refer to the same fundamental concept of defining the allowable frequencies for signals in a given system.
