Performing a Spectrogram Measurement

Performing a Spectrogram Measurement
Figure 15-1

Step
Notes

1
[Spectrum Analyzer]

2
[Measurements]

3
[Spectrogram]

4
On [Spectrogram] select On.
Each time you press this key, the spectrogram state switches between On and Off.
When you set [Spectrogram] to On, [Reset Spectrogram], [Update Interval], [Frame Skip], and [Palette] become active.

5
If you need to restart the data capture press [Reset Spectrogram]
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.

6
If desired set the update interval:

[Update Interval]
Enter the interval number using the numeric keypad.
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].

7
If desired set the number of frames you want to skip:

[Frame Skip]
Enter the interval number using the numeric keypad.
Select [frames].

8
If desired set the display color:

[Palette]
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].


	Step	Notes
1	[Spectrum Analyzer]
2	[Measurements]
3	[Spectrogram]
4	On [Spectrogram] select On.	Each time you press this key, the spectrogram state switches between On and Off. When you set [Spectrogram] to On, [Reset Spectrogram], [Update Interval], [Frame Skip], and [Palette] become active.
5	If you need to restart the data capture press [Reset Spectrogram]	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.
6	If desired set the update interval: [Update Interval] Enter the interval number using the numeric keypad. 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].
7	If desired set the number of frames you want to skip: [Frame Skip] Enter the interval number using the numeric keypad. Select [frames].
8	If desired set the display color: [Palette] 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].