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Line Impedance Stabilization Networks (LISN) are specialized low pass filter networks used to measure common mode conducted emissions from power lines.
The impedance versus frequency of an LISN must match the requirements of the test specification being applied to the EUT. Most LISN attributes are defined in CISPR 16-1. The most widely used LISN's present a 50Ω impedance to the EUT. The 50Ω impedance was selected because theoretical and empirical data have shown that the power circuitry statistically looks like a 50Ω impedance to standard electronic equipment and RF test equipment is typically designed for 50Ω input.
Model No
LISN-50-25-2-01
Condition
Used
Manufacturer
FCC
Current
25 A
Frequency
100 MHz