HP 83751A User Manual page 135

Frequency Keys
Pressing the m key puts the instrument into the swept frequency mode, and
C F
allows you to change the center frequency of the sweep.
This key puts the instrument into sweep mode and displays the center
frequency and frequency span in the FREQUENCY display. The CF and
SPAN Annunciators are turned on. The center frequency becomes the active
parameter. If the center frequency is changed to a value that would put one
end of the span beyond the legal range of the start and stop frequencies,
then the span is reduced to keep the start and stop frequencies in range.
The center frequency is always coupled to previously-set start and stop
frequencies by the equation: CF=(START+STOP)/2.
becomes the value of the active marker. The span width does not change. If
all markers are off when this key is pressed, then no action takes place. This
function works in either Start/Stop or CF/Span modes.
11-8
Associated SCPI Commands
Associated 8350 Commands
CF <num>[suffix]
Associated SCPI Commands
Associated 8350 Commands
MC
Sets the instrument to sweep mode.
Sets the canter frequency to the
Sets the canter frequency to the
desired value.
?
Sets the canter frequency to the
value of the markel
Sets the canter liequenq to the
value of the actii marker: