Datasat AP25 Installation And Operating Manual page 152

After the flattest response is achieved by adjusting the projector optics, the final slit loss
correction is made using the Parametric Filter Settings, see Figure 18.
F4.4.5. Slit Loss EQ
When Slit Loss EQ is selected a graph of the slit loss adjustment is shown on the right of the
screen (see Figure 18 below). The goal is to achieve a flat response. Each frequency level
should meet reference ("db" on the graph) as shown. Note the roll-off after 12.5 kHz.
Menu (System) → Formats → Format Options → Film Options → Film Setup →
Slit Loss EQ
A projector select button is located below the graph: Projector 1 = Proj1 and projector 2 =
Proj2. Press the button to select.
The Level number above the Proj button is a general indicator of the input signal level that
can be used to confirm there is a valid signal. In Figure 18 the Level is -7dB, which is typical
when playing pink noise.
A button to allow switching between Right and Left channels is located to the right of the
Proj button. Press this button to select the channel.
Appendix F. H338 Optical Film Card Option
AP25 Installation and Operating Guide
Figure 17 – Focus
Figure 18 – Slit Loss EQ
F-13
Version 1.00
Document #: 9301H79500 Ver. 1.00