Com-Power LI-350 LISN

Frequency Range: 10 kHz - 400 MHz / 50 Amps

The Com-Power LI-350 LISN for DO-160 & MIL-STD 461F, can handle up to 50 Amps AC (35 Amps DC) current and provides the necessary measurement platform for performing power line conducted emissions compliance testing as required by DO-160 & MIL-STD 461F.

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Com-Power LI-350 LISN Product Description

The LI-350 LISN for DO-160 & MIL-STD 461F, can handle upto 50 Amps AC (35 Amps DC) current and provides the necessary measurement platform for performing power line conducted emissions compliance testing as required by DO-160 & MIL-STD 461F.

The concept and advantages of the LISN is to:

  • Connect in series with, and impose a defined impedance on, the lines under test; thereby providing a distinct advantage over current or voltage probe measurements, where the impedance of the lines is largely uncontrolled
  • Provide a coaxial RF measurement port for connection to the measurement equipment, to which the disturbance voltages present at the EUT port are coupled for measurement
  • Isolate the AE (ancilliary equipment) port from the EUT and RF ports, which:
    1) Minimises the influence of the AE-connected equipment/cabling on the impedance (and voltage division factor) of the network
    2) Reduces the amplitude of any ambient signals, as well as spurious disturbance voltages generated by the AE-connected equipment, thereby minimising their potential impact on the measurement results.

Two pairs of LI-350 can be used to accommodate 3-phase power systems (Wye or Delta configurations).

Com-Power LI-350 LISN Resources

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