LeCroy 9400A

<source> = < CHANNEL 1
(Cl) (default)
< CHANNEL-2 (C2)
< MEMORY C (MC)
< MEMORY-D (MD)
< FUNCTION E (FE)
NOTE: FUNCTION E can be a source only for FUNCTION_F.
<window> = < RECTANGULAR
(RECT)
(default)
< V0N HANN
(HANN)
< HAMMING
(HAHN)
< FLAT TOP
(FLT)
< BLACKMAN HARRIS
(BH)
<m fact> = 0.01 to 9.99
(default = 1.0)
Multiplication factor applied to
waveform before FFT computation.
the source
<a const> = -9.99 to 9.99 (default = 0.0)
Additive constant (divisions) applied to the
source waveform before multiplication.
<z_suppr> = <OFF>
<ON>
(default)
If ON, the DC component of the source
waveform is forced to O.
The ’redefine’ command has also been extended to accept the parameters
related to the FFT Power Average:
REDEFINE (RDF), FFT AVG (FFTA), <dlsp_type>, <nsweeps>
The parameters have the following options:
<disp_type> = < POWER SPECTRUM (PWS)
< POWER-DENSITY (PWD)
< MAGNITUDE (MAG)
(default)
<nsweeps> = < I0 >
< 20 >
< 50 >
< I00 >
< 200 >
(default)
Any other number generates a semantic error.
11-8
Fast Fourier Waveform Processing
Option (WP02, V 2.06FT)