THOMSON Grass Valley KAM-XM Series, Инструкция по эксплуатации

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KAM-XM-SERIES Instruction Manual 51
Configuration and Adjustments
Brickwall Web Page
The Brickwall web page ( Figure 27 ) is active only on the KAM-XM-UNC
module.
This web page provides noise reduction by using a low pass filter with a
sharp cutoff to attenuate high frequencies. This type of filter is best for
diminishing Gaussian and impulse noise. Refer to
Brickwall Filtering on
page 26 for a discussion on using the Brickwall filter.
Enable the control by selecting
On
in the
Enable
pulldown then use the fol-
lowing controls for the Brickwall filter:
• Boost – sets the amount of boosting in dB of amplitudes prior to the
cutoff frequency. This gives the appearance of sharpening the image to
help compensate for blurring that occurs when filtering out high fre-
quency information.
•
Cutoff
– sets the cutoff frequency in MHz above which information will
be filtered while information below the cutoff will be left untouched.
•
Direction
– this control allows the user to set the direction in which the
filters above will affect the picture.
•
Vertical
applies the filters to the vertical axis only.
•
Horizontal
applies the filters to the horizontal axis only.
•
Horizontal & Vertical
applies the filters to the both axes.
Figure 27. KAM-XM Brickwall Web Page
Use
this
link