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
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
START
¾
Sets the Spectrum Analyzer in the START-STOP mode. Enter a
start frequency value (in MHz) 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 MHz) using the Up/Down arrow key or keypad,
press
ENTER
to accept,
ESCAPE
to restore.
3-13
Chapter 3 Functions and Operations
