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Span control state
[SB1], [SB2] and arrow buttons control the Span of the data plot. Depending on the Span
control state the soft buttons have different usage.
– [SB1] cycles through available span values for X axis of the data plot. The
possible values vary between
3 MHz
and
21 MHz
in
1 MHz
increments. Note that changing X
span may also change the center frequency in order to keep data plot in bounds. When a key is
pressed next span value will be selected and displayed on the screen.
5MHz X span is selected
– [SB1] cycles through available span values for Y axis of the data plot. The
possible values are
30 dBμV
,
60 dBμV
,
90 dBμV
, and
120 dBμV
. Note that in order to keep the
data plot in bounds changing Y span may also change the Y reference. When the button is pressed
new value will be selected and displayed on the screen.
120 dBμV Y span is selected
Содержание DB7001
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