Figure 2-2: The Audio Analyzer Menu Tree - Tektronix VM700T User Manual

Audio
Analyzer
Select
Special
Graph
Setup
Set Input
Range
b
Right:
Left:
Range [A-E]
Range [A-E]
Level in Level in
Volts dBu
Graph
Graph
Levels
THD + N
a
The Settling Time menu displays the settings for plot conditions. Each bold (intensified) text item can be
selected and changed. The Default Settings softkey returns the settings to default values as shown in the
following:
Point plot conditions
If the frequency remains within +/– 0.100 % and amplitude
remains within +/– 0.100 dB and above a threshold value of
–60.00 dBu for 0.171 sec, then plot a point every time the
frequency changes more than +/– 0.20 %.
b Digitizing window choices are displayed under Set Input Range with a choice of five
windows as follows:
The VM 700T will digitize audio in a 92 dB window
within a total input range of 132 dB.
There are five input range windows:
range A: –62 to +30 dBu
range B: –72 to +20 dBu
range C: –82 to +10 dBu
range D: –92 to 0 dBu
range E: –102 to –10 dBu
c The View Diff softkey is displayed only for the Graph Levels selection; it disappears when Graph THD + N
or Graph Ch. Sep. are selected.
Figure 2–2: The Audio Analyzer menu tree
VM700T Option 40/41/42 Audio Measurements User Manual
Change Plot:
Scales ON/OFF
Settling
Time
a
Default
Settings
b
AUTO
Range
THD + N THD + N in
dB
in Percent
Graph
View
Ch. Sep.
Diff
Erase Limits:
Plot ON/OFF
Freq:
LOG/LINEAR
c
View View
Left Right
Operating Basics
Rescale
Views
LOCKED/
UNLOCKED
View:
L & R
2–3