Tekbox TBLM02 LISN Mate CM/DM Støy separator

The Tekbox TBLM2 LISN Mate is a companion device for LISNs, which splits the conducted noise signal into its common mode and differential mode components. The LISN Mate is connected to the output of a LISN inserted into the positive supply line and to a second LISN inserted into the negative supply line.

The conducted noise signal at the output of a LISN is the sum of common mode and differential mode noise. The LISN mate splits it into the common mode and differential mode components, with each signal component available at a separate BNC port.

Nominal frequency range: 150 kHz – 100 MHz Usable frequency range: 9kHz – 110 MHz Port impedance │ZLISN1│, │ZLISN2│,│ZCM│: 150 kHz – 1 MHz: 30…55 Ohm, 1 MHz -30 MHz: 50….60 Ohm, 30 MHz – 100 MHz: 50….70 Ohm │ZDM│: 150 kHz – 1 MHz: 30…50 Ohm, 1 MHz -30 MHz: 40….50 Ohm, 30 MHz – 100 MHz: 40….70 Ohm │ZLISN1│: independent of the termination at the LISN2 port │ZLISN2│: independent of the termination at the LISN1 port │ZCM LISN1-LISN2│: 25 Ohm nominal │ZDM LISN1-LISN2│: 100 Ohm nominal Maximum RF level at any BNC port: 27dBm Maximum DC current at any BNC port: 30 mA