HP 8712ET User Manual

ES User’s Guide 4-29
Using Instrument Functions
Using Limit Testing
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
.
3. Press , and enter .
4. Press , and enter .
5. Press , and press .
6. Press , and press .
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
to toggle the graticule off.
9. To see if your filter meets the minimum limit you have just set up,
press .
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 and set the and to
0dB.
11.Notice the display now shows the FAIL indicator.
NOTE 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 . For more
information, see “Customizing the Display” on page 4-45.
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.
DISPLAY
Limit Menu
Add Limit
Add Min Line
Begin Frequency
155
MHz
End Frequency
195
MHz
Begin Limit
−
3
Enter
End Limit
−
3
Enter
DISPLAY
More Display
Graticule ON off
Prior Menu
Limit Menu
Limit Test ON
Edit Limit
Begin Limit
End Limit
DISPLAY
Limit Menu
Limit Options

HP 8712ET Specifications

General

Brand	HP
Model	8712ET
Category	Measuring Instruments
Language	English