Filter
Top Products
1-77
Making Measurements
Using Limit Lines to Test a Device
Figure 1-61 Sloping Limit Lines
Creating Single Point Limits
In this example procedure, the following limits are set:
• from −23 dB to −28.5 dB at 141 MHz
• from −23 dB to −28.5 dB at 126.5 MHz
1. To access the limits menu and activate the limit lines, press:
2. To designate a single point limit line, as shown in Figure 1-62, you must define two
pointers:
• downward pointing, indicating the upper test limit
• upward pointing, indicating the lower test limit
Press:
System
LIMIT MENU
LIMIT LINE
LIMIT LINE ON
EDIT LIMIT LINE
CLEAR LIST
YES
ADD
STIMULUS VALUE
141
M/µ
UPPER LIMIT
−23 x1
LOWER LIMIT
−28.5 x1
DONE
LIMIT TYPE
SINGLE POINT
RETURN
ADD
STIMULUS VALUE
126.5 M/µ
UPPER LIMIT
−23
x1
LOWER LIMIT
−28.5 x1
DONE
LIMIT TYPE
SINGLE POINT
RETURN