HP HP 8753E, Руководство пользователя, Страница: 80 / 699

Setting the Frequency Span
You can set the span equal to the spacing between two markers. If you set the center
frequency before you set the frequency span, you will have a better view of the area of
interest.
1.
2.
Turn the front panel knob, or enter a value from the front panel keypad to position the
markers where you want the frequency span.
Iterate between marker 1 and marker 2 by pressing
and respectively,
and turning the front panel knob or entering values from the front panel keypad to position
the markers around the center frequency. When positioning the markers, make sure
that marker 2 is selected as the active marker.
Note
. . .
Step 2 can also be performed using and However, when
. . . .
. .
using this method, it will not be possible to iterate between marker zero and
marker 1.
3.
to change
the frequency span to the range between
.. . . . . . .
1 and marker 2.
Figure
2-21.
of Setting the
I I I I I I
i I
Frequency Span Marker
Making Measurements