FFTSTOP FFT Stop Frequency

FFTSTOP

FFT Stop Frequency

Sets the
FFI’
stop frequency of the FFT measurement.
Syntax
Item Description/Default
R-e
Number Any real or integer number. Default unit is Hz. Range is limited by
the range of the
sweep time for the
Prerequisite Commands:
FFI’AUTO,
FFTSNGLS, FFTCONTS.
Related Commands: ST.
Example
OUTPUT 718
*
“FFTCONTS
-
”
OUTPUT 718; “FFTSTOP
;KHZ;
”
Starts the FFT
Sets the
FlTstopjYequemy
to 1
kHz.
Description
To change the FFT stop frequency, FFTSTOP changes the sweep time of the spectrum analyzer
as follows:
400
FFT
stop
frequency
=
(Sweep
time
x
2j
You can execute the FFTSTOP command two different ways. You can either execute the
FFTSTOP command directly (for example,
“FFTSTOP 1;
‘I)
or use the MOV command to move
the 1 or 0 into the FFTSTOP command (for example,
“MOV
FFTSTOP, 1;
‘I).
If you use the
MOV
command, no text is displayed in the active function area during command execution.
Programming Commands
5-177