HP 8590 E-Series User Manual page 223

Note
Printing and plotting require an optional interface. Generally, spectrum
analyzers with an HP-IB interface set the plotter address to 5 and the printer
address to 1. Spectrum analyzers with an RS-232 interface must have the baud
rate set to match the baud rate of the printer or plotter being used. The
HP 8590 E-Series and L-Series Spectrum Analyzer and HP 8591C Cable TV
Analyzer Programmer's Guide that comes with the optional interfaces details
the different interfaces. Refer to Chapter 6 in this manual for more information
about printing and plotting.
Option 041 or 043 only.
COPY DEV
PRNT PLT
changes between a printer and plotter. For example, if you have been printing
and want to do a plot, press COPY DEV PRNT PLT to underline PLT before
pressing (Copy).
Front-Panel Key Access: (CONFIG)
controls use of some of the correction factors. When ON is underlined,
CORRECT
correction factors are used and CORR appears on the display. When OFF is
ON OFF
underlined, correction factors are not used. Turning the correction factors off
degrades amplitude accuracy.
Note
Correction factors must be on for the spectrum analyzer to meet its specified
performance.
Front-Panel Key Access: ICAL)
HP 8594E, HP 85956 or HP 8596E only.
COUPLE
specifies alternating-current (AC) or direct-current (DC) coupling at the
AC DC
spectrum analyzer input. Selecting ac coupling blocks any dc voltage at
the spectrum analyzer input; however, the ac coupling also decreases the
frequency range of the spectrum analyzer. The input coupling is set to ac by
an instrument preset.
Amplitude specifications apply only when coupling is set to DC.
Caution
Do not use dc coupling if there is any dc voltage at the spectrum analyzer
input.
Front-Panel Key Access: (AMPLITUDE)
Option 105 only. Option 101 is recommended.
CPL RBW
automatically selects the optimum resolution bandwidth for an unmodulated
ON OFF
pulse if the pulse width has been entered. If the pulse width has not been
determined, the resolution bandwidth will not be coupled to the pulse
parameters and a warning message will occur. If a resolution bandwidth is
entered manually, the coupling will be turned off.
Front-Panel Key Access: (SWEEP)
Option 105 only. Option 101 is recommencled.
automatically selects the optimum sweep time if the pulse repetition interval
ON OFF
has been entered. If the pulse repetition interval has not been determined, the
sweep time will not be coupled and an error message will occur. If a sweep
time is entered manually, the coupling will be turned off. Sweep time coupling
only applies to the frequency domain window.
Front-Panel Key Access: (SWEEP)
7-30 Key Descriptions