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Span control state:
In this state
SB1
,
SB2
and
Arrow buttons
controls
span
of the data plot. The following is
description of button assignments in span control state:
(
SB1
) cycles through available
span
values for X axis of the data plot. Possible
values are between 3 and 21 MHz in 1 MHz increments. Note that changing
X span
may also
change the
center frequency
to keep data plot in bounds. On each key press next
span
value is
selected and displayed briefly on the screen.
5MHz X span is selected
(
SB1
) cycles through available
span
values for Y axis of the data plot. Possible
values are 30, 60, 90, and 120 dBµV. Note that changing
Y span
may also change the
Y reference
to keep data plot in bounds. On each key press newly selected value is displayed briefly on the
screen.
120 dBµV Y span is selected
Содержание DB4004
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