Blackman-Harris
REMOTE CONTROL
All front-panel controls and WP01 and WP02
processing functions are fully programmable via the
9400A GPIB and RS-232-C interfaces. Simple
English-like mnemonics are used.
STORED FRONT PANELS
Up to 7 front-panel setups, including WP01 and WP02
menu settings can be stored and recalled by the
menu buttons at the left side of the 9400A screen.
WP02-FFT INSTALLATION
A WP02-FFT package may be retrofitted to a LeCroy
9400A Digital Oscilloscope. The WP01 Signal
Processing hardware and software is a prerequisite
for installation of WP02.
Flattop
Hamming
von Hann (Hanning)
The sum of two 1 V p-p sinusoids of 500 kHz and 527.5 kHz is
digitized over 2,500 points and transformed to the frequency domain.
4 different window functions are applied to indicate their effect on
leakage suppression and spectral resolution. The vertical scale factor
is 10 dB/div, 80 dBm full scale.
Long records give wide frequency span. FFT of 1000 Hz sine-
amplitude modulated square wave, recorded over 25,000 points,
shows harmonics up to 25 kHz. Expansion shows sidebands at 10 Hz
and -30.1 dB.
ORDERING INFORMATION
Oscilloscope and Options
Code
Description
9400A
Digital Oscilloscope
9400AOP01 High-precision option (+_ 1% DC accuracy)
9400AWP01
Waveform processing option
9400AWP02Fast Fourier processing option (requires
9400AWP01 )
9400AMS01 Mass storage and remote control package,
including an IBM lap-top controller, interface,
cables and software
9400AIM01 GPIB interface for IBM-PCC computers
Oscilloscope Accessories
OM9400A
Operator’s Manual
SM9400A Service Manual
CA9001
Camera (using Polaroid film) and Hood
CA9002 Camera adapter (35 mm) with Hood
CS9400 Certified Calibration
DP9001 Digital Plotter, 8-pen A4 size
OC9001 Oscilloscope Cart
RM9400
Adapter Kit for Rack Mounting
SG9001 High-voltage protector
TC9001 Transit Case
TC9002 Protective Cover
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