Special LISN

The VHF-LISN serves as a defined RF-termination device at the EuT’s mains cable during the radiated disturbance measurement. There are two VHF-LISN types available: the balanced VHF-LISN (VHFB 8801) and the unbalanced VHF-LISN (VHFU 8802), which can be used as an alternative to the CMAD (common mode absorption device). The impedance presented by the unbalanced VHF-LISN to each terminal of the EUT AC mains port is different (not symmetrical), resulting in an unbalanced load. This leads to a controlled conversion of differential-mode currents to common-mode currents, which depends on the value of the termination impedances, as it would occur with an unbalanced AC mains power network. This device complies with the standard CISPR 16-1-4 / Ed. 5

The VHF-LISN serves as a defined RF-termination device at the EuT’s mains cable during the radiated disturbance measurement. There are two VHF-LISN types available: the balanced VHF-LISN (VHFB 8801) and the unbalanced VHF-LISN (VHFU 8802), which can be used as an alternative to the CMAD (common mode absorption device). The balanced VHF-LISN presents the same impedance to each terminal of the EUT’s AC mains power cable (symmetrical), resulting in a balanced load. This device complies with the standard CISPR 16-1-4 / Ed. 5

The ECSS LISN Series was developed in accordance with the “European Cooperation for Space Standardisation” guidelines, ensuring the highest quality and reliability. Schwarzbeck Mess-Elektronik has designed and produces over 20 high-performance models of these devices, each tailored to meet the stringent requirements of modern space and EMC testing

The main application of the unsymmetrical single path AMN (artificial mains network) TSC 7042 has been developed for automotive purposes according to Toyota standard TSC7042G.

• Max. cont. current: 70 A
• Max voltage (DC): 200 V
• Impedance: 0.09 µH + L2

The main application of the unsymmetrical single path AMN TSUP 8509 is the measurement of interference voltage for electromobility purposes according to MBN 10284 in the HF-VHF range 0.1 MHz – 150 MHz utilizing shielded cables. The device under test may drain a continuous current of 70 A and for a short period of time it may even drain more than 100 A.

The Pilot ISN is an impedance stabilization network used to measure disturbance voltages in PLC (Power Line Communication) systems. Its design complies with IEC 61851-21-2, which specifies standards for electric vehicle conductive charging systems. The ISN ensures decoupling between the…

The symmetrical AC-network TEMP 8400 consists of two identical channels for the lines “A” and “B”. It is constructed with air core inductors, in order to avoid intermodulation interference. For the evaluation of interference phenomena the unsymmetrical interference voltage of…

The LISN NPLC 8500 has been designed especially for PLC measurements according to ITU-T G.9901. To determine the power spectral density of PRIME transceivers (PoweRline Intelligent Metering Evolution) the unsymmetrical voltage between a conductor and ground has to be measured…