7-8
Chadwick-Helmuth Company, Inc.
Chapter 7
- Spectrum Analysis
NOTE: A portion of the LCD becomes obscured by the labels until
SHOW/HIDE
is pressed
again.
The last two soft keys,
SCALE
and
<HA RMON>
/
<HA RMOFF>
are also hidden and can only b
enabled by pressing
MORE KEYS
. The rest of this section explains the functions of these spectral data
analysis soft keys.
Figure 7-7. Spectral Frequency Plot Soft Keys
7.4.1
SEEK ON/SEEK OFF
Soft Key
Pressing the
<SEE KON>
/
<SEEK OFF>
soft key turns the seek peak function on and off. It is
functionally identical to the seek peak parameter in the Spectrum Setup screen.
7.4.2 Select Setup Function
The
SEL SETUP
soft key displays a list of saved spectrum setups which may be recalled, as desired.
See Sectio n7.3.2.2 “Recalling Setups” on pa ge7-6 for a complete explanation of
SE LSETU
.
7.4.3 List Peaks Function
The
LIST PEAKS
soft key displays a list of the spectral peaks at or above the seek amplitude threshold
value (see Figu re7-8). Entries are listed two to a line, with each entry consisting of the amplitude and
frequency values for a single spectral peak. The list cursor initially highlights the entry whose position
on the spectral plot is nearest that of the spectral plot cursor. Use the Arrowkeys to scroll through the
list.
Figure 7-8. List of Spectral Peaks Sorted by Amplitude
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