Technical data

Chapter 3 121
1xEV-DO Analyzer and Over Air Test
Performing a Codogram Measurement
1xEV-DO Analyzer and Over Air
Test
Performing a Codogram Measurement
Step Notes
1[Display]
2 [Codogram] This displays the menu that controls the
appearance and behavior of the
codogram display.
3 On [Codogram] select
On or Off. Each time you press this key, the
codogram state switches between
On and
Off.
When you set [Codogram] to On,
[Reset Codogram], [Update Interval] and
[Palette] become active.
4 [Reset Codogram] This restarts the data capture for the
Codogram. You may see the screen
freeze for a few seconds before the
display starts plotting data again.
5 If desired set the update interval:
a. [Update Interval]
b. Enter the interval number of
seconds using the numeric
keypad.
c. Select [sec] or [Max Speed].
Allows you to set the update interval to 0,
1, or more seconds. Alternatively, you
may set it to automatically determine the
update interval that provides the
maximum data collection speed.
If you need to return to the automatically
determined maximum capture speed, you
must press [Update Interval] followed by
a numeric keypad key to access [Max
Speed].
6 If desired set the display color:
a. [Palette]
b. Select [Full Color] or
[Grayscale].
The color/grayscale top and bottom
mappings are determined by the Ref
Level and Scale/Div settings. To change
the mapping, go to [Level/Location] and
change [Ref Level] and [Scale/Div].