JDS Uniphase DSAM-3500, Руководство пользователя

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Chapter 8 Measure Mode – Basic Tab
Tilt
170 DSAM Help User Guide Rev. 001
Understanding Tilt
Results
Measurement
Information Area
This area displays information about the current channel. Information
that is displayed in this area includes:
– Channel label
– Channel type (Single, TV, Dual, Digital, or DOCSIS)
– Channel number
– Test point compensation (if applicable)
Tilt Graph Bar Widths The Tilt graph displays up to twelve gray vertical bars. Depending on
the channel type, a narrow or wide vertical bar is displayed above each
channel number and the height of the bar represents the signal level
of that channel. A
narrow bar width represents a single, TV, or dual
channel type. A wide bar width represents a digital or DOCSIS
channel type.
Graph Information
Bar
This bar displays the highest and lowest frequencies of the tilt scan
channels.
Marker Information
Area
This area is located below the graph and displays the following:
– Channel number
– Carrier frequency (in MHz)
– Measured carrier signal level for the low and high pilot channels
Figure 154 Measure Mode – Tilt
Measurement
Information Area
Tilt Graph Bar Widths
Marker Information Area
Graph Information Bar
NOTE
For information about how to read the graph, see “Reading Mea-
surement Graphs” on page 196 .
21128026 R001 DSAM Help User Guide.book Page 170 Thursday, February 5, 2009 2:02 PM