Anritsu S331C User Manual
Page 26
Choosing
FREQ/DIST
in Spectrum Analyzer mode causes the soft keys, below, to be dis-
played and the corresponding values to be shown in the message area.
q
CENTER
¾ Sets the center frequency of the Spectrum Analyzer display . En-
ter a value using the Up/Down arrow key or keypad, press
ENTER
to accept,
ESCAPE
to restore previous value.
q
SPAN
¾ Sets the user-defined frequency span. Use the Up/Down arrow key
or keypad to enter a value in MHz. Also brings up
FULL
and
ZERO
softkeys.
q
EDIT
allows editing of the frequency span. Enter a value using the num-
ber keys.
q
FULL
span sets the Spectrum Analyzer to its maximum frequency span.
q
ZERO
span sets the span to 0 Hz. This displays the input signal in an am-
plitude versus time mode, which is useful for viewing modulation.
q
SPAN UP 1-2-5
activates the span function so that the span may be in-
creased quickly in a 1-2-5 sequence.
q
SPAN DOWN 1-2-5
activates the span function so that the span may be
reduced quickly in a 1-2-5 sequence.
q
BACK
returns to the previous menu level.
q
START
¾ Sets the Spectrum Analyzer in the START-STOP mode. Enter a
start frequency value (in kHz, MHz, or GHz) using the Up/Down arrow key
or keypad, press
ENTER
to accept,
ESCAPE
to restore.
q
STOP
¾ Sets the Spectrum Analyzer in the START-STOP mode. Enter a
stop frequency value (in kHz, MHz, or GHz) using the Up/Down arrow key
or keypad, press
ENTER
to accept,
ESCAPE
to restore.
2-11
Chapter 2 Functions and Operations