Agilent Technologies Agilent 4396B - Manual (Page 108)

Filter T esting Using Limit Lines
The analyzer has limit line/testing functions for go/no-go testing. The
limit lines de ne upper and lower limits . The limit testing functions
compare the measured data to the limit lines and indicate the result.
The following example is a practical method for setting up limit lines
to test a bandpass lter .
Example of Limit Lines F or Filter T esting
This example creates limit lines to test a 70 MHz crystal bandpass
lter .
Analyzer Settings
Press 4 Preset 5 . Then set the analyzer's controls as follows:
Desired Setting K ey Strokes
A ctive Channel
Block
Select channel 1 4 Chan 1 5 (default)
Measurement
Block
Select S 21 (or B/R) measurement Press 4 Meas 5
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
Trans:FWD S21 [B/R]
Select LOG MA G format 4 F ormat 5
FFFFFFFFFFFFFFFFFFF
LOG MAG (default)
Sweep Block Center frequency 836 MHz Press 4 Center 5 836 4 M/ 5
Span frequency 100 MHz Press 4 Span 5 100 4 M/ 5
Number of points 401 Press 4 MENU 5
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
NUMBER of POINTS 401 4 21 5
Creating Limit Lines
P erform the following procedure (see Figure 5-20):
5-22 Network Measurement Examples