HP 8590 E-Series User Manual page 238

FREQ
allows the user to input a frequency offset value that is added to the
OFFSET frequency readout, to account for frequency conversions external to the
spectrum analyzer. Offset entries are added to all frequency readouts including
marker, start frequency, and stop frequency. Entering an offset does not affect
the trace. Offsets are not added to the span. Frequency offsets are entered
using the numeric keypad.
When a frequency offset is entered, its value is displayed on the bottom of the
screen (as opposed to reference level offsets, which are displayed on the left
side of the screen). To eliminate an offset, press
Pressing @iZY] also sets the offset to zero.
Front-Panel Key Access: C-1
activates the center-frequency or start-frequency function and accesses
the menu that has the frequency functions. The center frequency or start
frequency value appears below the graticule on the screen.
Although the spectrum analyzer allows entry of frequencies greater than the
specified frequency range, using frequencies greater than the frequency span
of the spectrum analyzer is not recommended.
Note
When changing both the center frequency and the span, change the frequency
first since the span can be limited by the frequency value.
FULL
changes the spectrum analyzer span to full span.
SPAN
limited if harmonic band lock (BND
Front-Panel Key Access: IsPANl
Gate
accesses the menu of gate control functions and the entrance to the gate utility
Control
menus. The gate can be controlled independently or from within the gate
utility. The gate utility makes it easier to set up and manipulate the gate.
When the gate control functions are accessed under the
outside of the gate utility, they do not interact with the gate utility. Values
that are changed using these keys will not affect the gate utility settings and
FREQ OFFSET
LOCK ON OFF )
Full Span Frequency Range
Model Frequency Range
HP 85SOL 9 kHz to 1.8 GHz
HP 85913 9 kHz to 1.8 GHz
HP 8592L
2.75
HP 85933 2.75
HP 85943 9 kHz to 2.9 GHz
HP 8594L 9 kHz to 2.9 GHz
HP 85953 9 kHz to 6.5 GHz *
HP 8596E 9 kHz to 12.8 GHz *
and 0 CENTER].
is set to ON.
Gate Control
menu,
Key Descriptions 7-45