Monitoring the SDI Physical Layer
Usage Note
Most serial receivers specify cable accommodation for 8281 or 1694A. Even if you use a different cable, you can use the
8281 or 1694A setting and evaluate the loss as if it were that cable type. This allows you to compare the specification for
the receiver regardless of the actual cable type in use.
If you need to measure launch amplitude or physical length, you must set the cable type to the actual cable used.
Setting the Eye Type
1.
Touch the
Eye Type
soft key.
(See page 86,
Displaying the Eye
Measurement Menu
.)
2.
Select one of the following:
Eye
. The Eye display shows the SDI
input signal directly.
Equalized Eye
. The Eye display shows
the SDI input signal after it has passed
through the internal cable equalizer and
comparator.
3.
Touch the
Close Eye Type
soft key.
Setting the Jitter High Pass Filter
1.
Touch the
Jitter HPF
soft key and select
a high-pass filter value. (See page 86,
Displaying the Eye Measurement Menu
.)
NOTE.
Timing
sets the
fi
lter value to 10 Hz.
Alignment
sets the
fi
lter value to 1 kHz for
SD or 100 kHz for HD.
2.
Touch the
Close Jitter HPF
soft key.
Setting the SMPTE 259/292 Alarm Thresholds
1.
Touch the
Settings
soft key. (See
page 86,
Displaying the Eye
Measurement Menu
.)
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Quick Start User Manual
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