HP 8590 E & L Series Spectrum Analyzers and HP 8591C Cable TV ...

Function
Category
MEASURE/USER
Icontinued)
FFTMM
FFTMS
FFTOFF
FFTPCTAM
lfdble 5-4. Functional Index (continued)
Command
FFTPCTAMR
FFTSNGLS
FFTSTAT
FFl’STOP
MEASOFF
NDB
NDBPNT
NDBPNTR
OBW
OBWPCT
PCTAM
Corresponding
Key Function
BARKER -> BID SCRIU
MAXKER -> FFT STOP
FFT OFF
% AH 08 OFF (during an
FFT measurement)
SIIIGLE FFT
MEAS OFF
N d3 PTS ON OFF
N dl3 PTS ON OFF
OCGBPTRB BAADWDTR
OCC BY % POWER
% AM ON OFF
Description
Changes the FFT midscreen frequency
of the spectrum analyzer to the
frequency of the FFT marker.
Changes the FFT stop frequency of the
spectrum analyzer to the frequency of
the FFT marker.
Exits the fast Fourier transform (FFT)
measurement and FFT settings.
Turns the percent AM function on or
Off.
Returns the percent of amplitude
modulation (AM).
Changes the spectrum analyzer’s sweep
mode to single sweep mode (if
necessary), and then performs a fast
Fourier transform (FIT) on trace A.
Returns the status of the spectrum
analyzer’s FFT measurement functions.
Sets the FFT stop frequency of the FFT
measurement.
Turns off the current measurement,
erases the display, and then displays the
menu accessed by (MEAS/USER].
Specifies the distance (in dB) from the
signal peak for the N dB points
measurement (NDBPNT).
Turns on or off the N dB points
measurement.
Returns the bandwidth measured by the
N dB points measurement (NDBPT).
Performs the occupied bandwidth
measurement using the value for
occupied bandwidth percent (OBWPCT).
Specifies the percent of total power that
is to be used in calculating the occupied
bandwidth (OBW).
Turns on or off the percent AM
measurement.
PCTAMR Returns the percent AM measured by
the percent AM measurement (PCTAM).
PWRBW
TO1 TOI OW OFF
Computes the bandwidth around the
trace center, which includes signals
whose total power is a specified
percentage of the total trace signal
power.
Turns on or off the third-order
intermodulation (TOI) measurement.
TOIR Returns the highest third-order
intermodulation product measured by
the third-order intermodulation
measurement (TOI).
AODE MODE SPEC’IRUH AHALYZER Returns a “0” if the mode of operation
is spectrum analysis. A number other
than “0” is returned if the operating
mode (also called “personality”) is other
than spectrum analysis.
Programming Commands 5-21