Fft S Pectrum A Nalyzer - Omnia .9 Installation And Operation Manual

FFT S pectrum A nalyzer M enu
The RTA menu allows you to monitor the same sources as those mentioned in the Oscilloscope
menu s ection.
The D elay c ontrol w orks t he s ame h ere a s i t d oes p revious a nd s ubsequent d isplay s ections.
The Resolution control selects the number of frequency bands into which the audio is
divided. 1 x r esolution g ives y ou a r efresh r ate o f a pproximately 4 8 f rames p er s econd a nd a
frequency resolution sufficient for viewing the entire audio spectrum. 8x resolutions gives
you a refresh rate of approximately 6 frames per second, but a much finer frequency
resolution.
The Decay Rate control adjusts how quickly the display will fall after a peak is displayed.
Lower s ettings a re t he s lowest, w hile t he h ighest s etting i s i nstantaneous.
The Peak Hold control enables or disables the ability to indicate and hold the highest peak
achieved. P eak H old i s d isplayed i n t he d ark g reen b ackground l ayer.
The X -­‐Center c ontrol c enters t he d isplay a t t he s elected f requency.
The X -­‐Width c ontrol s ets t he d isplayed f requency r ange i n k Hz.
The Y -­‐Center c ontrol c enters t he d isplay v ertically a round t he s elected l evel i n d B.
The Y -­‐Range c ontrol s ets t he d isplayed l evel r ange i n d B.
The d B S cale P osition c ontrol a llows y ou t o m ove t he d B s cale h orizontally t o a d ifferent p lace i n t he
display. A dvancing t he c ontrol c ompletely t o t he r ight p laces i t i n f ront o f t he g raph a t a ll t imes.
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