To Create A Flat Limit Line - HP 8712ET User Manual

NOTE

To Create a Flat Limit Line

In this example, you will create a minimum limit line from 155 MHz to
195 MHz at a level of −3 dB.
1. To access the limit line menu, press
2. To create a new minimum limit line, press
Add Min Line
3. Press Begin Frequency
4. Press End Frequency
5. Press Begin Limit
6. Press End Limit
7. Notice that the analyzer has generated a limit line at about the
center of the display.
8. To get a less distracting view of the limit line, press
More Display Graticule ON off
9. To see if your filter meets the minimum limit you have just set up,
press Prior Menu Limit Menu
10. The display will now indicate whether the DUT has passed or failed
when compared to the current limits. If you are using the filter that
was shipped with your instrument, you should see a PASS indicator.
To edit a current limit line and to see what a fail indicator looks like,
press Edit Limit
0 dB.
11. Notice the display now shows the FAIL
You can move the position of the pass/fail indicator, turn on or off the
pass/fail text, and turn on or off the fail icon in the limit options menu.
Press Limit Menu
DISPLAY
information, see "Customizing the Display" on page
12. Before continuing to the next section, edit the limit line to change it
back to having a begin and end limit of −3 dB.
ET User's Guide
.
, and enter
, and enter
−3
, and press
−3
, and press
and set the Begin Limit
Limit Options
Using Instrument Functions
Using Limit Testing
Limit Menu
DISPLAY
Add Limit
155 MHz .
195 MHz .
Enter .
Enter .
DISPLAY
to toggle the graticule off.
Limit Test ON .
and End Limit
indicator.
. For more
4-45.
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to
4-29