The EM-7820-2 Line Impedance Stabilization Network (sometimes referred to as a “V Network”) is a single line low pass filter network designed to isolate an electrically operated device from an external power source (usually the power mains). It provides stable and consistent line impedance at the frequencies where radio interference measurements are made.

The 50 µHy/ 250 µHy network implemented in this LISN may be used in making high frequency conducted measurements according to most commercial test specifications including ANSI C63.4 and certain FCC, CISPR and VDE tests. It features a current carrying capacity of 100 Amperes.



Frequency Range: 10 kHz – 30 MHz
Power Line Frequency: DC to 63 Hz
Current Rating: 100 A Maximum Continuous Current
Maximum AC Input:
Line-to-Ground: 220 VAC
Impedance Characteristics: Follows VDE 0876
Specified Curve +-20%
Inductance Characteristics: 50 µH/250 µH
Monitor Port: Type BNC
Power Input/Output: Superior Pin Receptacles


Length: 41.15cm (16.2”)
Width: 27.69 cm (10.9”)
Height: 15.57 cm (6.13”)
Weight: 11.57 kg (25.5 lbs.)

Product Sheet