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j) Phase
The Y -scale control fields for phase read-outs include a phase compensation field,
which can be used to correct the displayed phase in complex frequency domain func-
tions for system delays. It is a hidden field which only becomes visible when the Field
Selector is indexed to the same line as the Y -scaling control fields, or the phase
compensation is not equal to zero.
~
T is equal to the time resolution or sampling
interval, and T is equal to one memory period or record. Note that although phase is
scaled from -200 to
+
200°, cursor read-outs are in the range ± 180°.
Y: -200 to
+
200 DEG
CMP:
k) Nyquist Plots
-T/2
-T/2
+
LlT/128
0
T/2- Ll T/128
T/2
The Y -scaling control fields for Nyquist plots allow control of the Y full scale. The Y-
axis represents the imaginary part.
Y:
c:=:J
LIN
999E9*
100E-15
*
Allowed range for Frequency Response, Correlation Functions, and Impulse Response, 9,99 E 24 to
100E-27.
73
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