10
–21
FFT Setup
The constant K in the illustration includes the decimation factor
described above, as well as automatic display scaling factors.
This scaling is required to ensure that the FFT’s horizontal
display scale falls into a 1,2, or 5 factor.
In essence, the oscilloscope automatically adjusts the span (and
hence the FFT transform size) to account for the user-entered
“max points for math” and the display scaling. In some
combinations of these factors it also adjusts the length of the
displayed trace.
The user can determine the span from the Displayed Trace
Label for the math trace containing the FFT. This will show the
horizontal calibration in MHz/div. The span is also explicitly
shown as the Nyquist frequency in the information field that
appears at the bottom of the screen when the “MATH SETUP”
menus are displayed,
as shown here
.
Содержание 9300C Series
Страница 1: ...Operator s Manual LeCroy 9300C Series Digital Oscilloscopes Revision A January 1998 ...
Страница 8: ...1 3 billed for parts and labor related to the repair work and for shipping ...
Страница 18: ...4 1 4 Introduction to the Controls Two Channel Front Panel ...
Страница 19: ...4 2 Introduction to the Controls Four Channel Front Panel ...
Страница 92: ......
Страница 111: ...11 3 Dual Quad ...
Страница 112: ...11 4 Display Parameter s XY only ...
Страница 113: ...11 5 XY Single XY Dual ...
Страница 127: ...12 10 UTILITIES Protected will be displayed on the upper part of the grid whenever the medium is accessed for writing ...
Страница 138: ...12 21 Ø FLASH UPDATE Offering the Update from and Update Program menus illustrated next page ...
Страница 139: ...12 22 UTILITIES The full screen warning message shown when FLASH UPDATE has been selected ...
Страница 142: ...13 2 WAVEFORM STORE RECALL ...
Страница 182: ......
Страница 189: ...A 15 9344C Series 9350C Series 9354C Series 9354CTM 50 000x 9344CL 9350CL 9354CL 100 000x ...
Страница 200: ...A 26 Specifications FourChannelsCombined by PP094 Adapter Peak Detect OFF 4 GS s 400k 2M 8M One PP094 input ...
Страница 252: ...E 6 Appendix E ...
Страница 275: ...Index 9370C 9374C Series A 18 9384C Series A 24 Zoom menu 10 7 Zoom of Math Functions 10 1 ...