MACKIE RTA-31 - Manual (Page 15)

User’s Guide
15
The Analyzer Panel
The Analyzer Window
The analyzer window is represented by thirty-one bar graphs
that correspond to the same thirty-one sliders of the graphic EQ
section. The Analyzer displays a frequency spectrum from 20Hz
to 20kHz with a range that runs from –40 dBr to +20 dBr or –24
dBr to +12 dBr. The reference point is 0 dBfs in the D8B.
The dB Range Magnifier
The dB Range Magnifier, represented by the magnifying glass
icon/dB symbol button, switches the analyzer viewing range
between –40 dBr to +20 dBr (a 60 dB range) and –24 dBr to
+20 dBr (a 44 dB range) for fine-tuning.
The dB Reference Window
The dB reference window, found just to the right of the Range
Magnifier, is used to select a dB reference point relative to
0 dBfs found in the D8B. Adjusting the reference point will
change the relationship of the graph display relative to 0 dBr,
giving you specific analysis information pertaining to your
signal. The reference select range is from 0 dB to –60 dB. Adjust
the dB Reference value to raise or lower the entire display (for
instance, to boost the whole spectrum up to determine the
lowest level frequencies).
Graph Type
The Graph Type window enables the selection of different graph
types (Bar, Peak Hold, Point, Peak Diff., and Peak Bar) to suit
your analyzer view preference.
dB Range Magnifier
dB Reference Window
Graph Type
Graph Speed Select
To EQ Post EQ
Pre EQ Freeze