SECTION 4
OPERATION
40
4.3.1.1 WAVEFORM ANALYSIS (cont’d)
(OPTION- Harmonic Analysis and Synthesis)
Pressing
EDIT
will allow the user to select the number of samples used during the analysis process.
Select number of samples to analyze...
----> <nnn>
The value of “nnn” may only be one of the numbers listed below.
If any other number is entered, the default value of 128 will be used.
nnn
number of
harmonics
displayed
number of
harmonics
calculated
Time of
calculation
(approx.)
512 51 256
38
sec.
256 51 128
17
sec.
128 (default)
51
64
8 sec.
64 32 32
4
sec.
32 16 16
2
sec.
16 8 8
1
sec.
Press
ENTER
after typing this number to store the value.
Press
ENTER
again to process new data
The default is 128. That allows a full display of 51 harmonics with minimum processing time. Values of
256 or 512 will increase accuracy of the displayed harmonics, at a cost of processing time. Lower
values (64, 32, 16) calculate faster but have decreased resolution.
The LCD will always display 51 harmonic positions. For calculations which generate fewer harmonics,
the upper harmonic data will be zeros (0).
The full harmonic data set, up to the 256
th
harmonic, is available through the communication port. See
para. 5.5.2, Metered Data Queries, :MEASure:SPECTrum:VOLT1[:MAGnitude] and
:MEASure:SPECTrum:PHASe.
Summary of Contents for UPC-12
Page 2: ......
Page 12: ...SECTION 1 GENERAL viii THIS PAGE INTENTIONALLY BLANK ...
Page 17: ...SECTION 1 GENERAL 5 PACIFIC Figure 1 3a SCU UPC 32 Figure 1 3b UPC 32 Figure 1 3c UPC 12 ...
Page 46: ...SECTION 4 OPERATION 34 PA CIFIC FIGURE 4 1 POWER SOURCE FRONT PANEL ...
Page 77: ...SECTION 4 OPERATION 65 90 0 100 0 85 95 100 90 FIGURE 4 6 2 1 EDITED WAVEFORM ...
Page 139: ...NOTES 127 NOTES ...
