HP 8712C, Руководство пользователя, Страница: 151 / 559

Using Instrument Functions
Using limit Testing
In this example, you will create a minimum limit line from 155 MHz to
195 MHz at a level of -3
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access the limit line menu press .
create a new minimum limit line press Add .
Press
Begin Frequency
, and enter
Press End Frequency , and enter .
Press Limit , and press
Press End Limit , and press .
Notice that the analyzer has generated a limit line at about the center of
the display.
To get a less distracting view of the limit line, press
to toggle the graticule off.
‘lb see if your filter meets the minimum limit you have just set up, press
Limit
Menu Limit
On.
The display will now indicate on the display whether the DUT has passed
or failed when compared to the current limits. If you are using the
that was shipped with your instrument, you should see a PASS indicator.
edit a current limit line and to see what a fail indicator looks like,
press Edit Limit and set the
Begin
and End Limit
to 0
Notice the display now shows the FAIL
indicator.
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