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EMCO / ETS-Lindgren 3925-2 Line Impedance Stabilization Network (LISN), 5 kHz - 1000 MHz
ETS-Lindgren Line Impedance Stabilization Networks (LISNs) are multi-line low pass filter networks used for conducted emissions measurement. LISNs isolate an electrically powered EUT from the external power source, stabilize line impedance (for repeatable measurements), and provide a 50 ohm RF connection to measure EMI voltage generated by the EUT. When line currents drawn by the EUT are too great for a LISN 3701 Line Probe can be used for EMI voltage measurements.
The EMCO Model 3925/2 is a two line single phase PLISN for TEMPEST testing. It is divided into a low frequency section of 5 kHz - 20 MHz and a high frequency section of 2 MHz - 1 GHz. The low frequency section is rated at 15 amps with a line voltage drop of 10%. The high frequency section is rated at 20 amps with a maximum drop of 2.5%. Iron core coils are used in this PLISN to provide the proper impedance at lower frequencies. Type N female connectors are used for power output to the EUT. An AC adapter is also provided. Type BNC connectors are used for monitoring the output.
EMCO / ETS-Lindgren 3925-2 Features:
- One Piece, Multi-Line Design for Convenience
- Wide Frequency for Broad Measurement
- Coils Matched to Application
- Insulated Plugs for Safer Power Connections
- RF Shielding to Minimize Intrusion
- Individually Calibrated
EMCO / ETS-Lindgren 3925-2 Specifications:
| Frequency Minimum |
5 kHz |
| Frequency Maximum |
1000 MHz |
| Lines Plus Ground |
2 |
| Maximum Current |
20 A |
| Maximum Voltage |
220 VAC Line to Ground |
| 400 VAC Line - Line |
| Network Inductance Impedance |
50 ohm |
| Power In Connector |
Superior Plug |
| Power Out Connector |
AC Adapter Type, N female |
| Power Source Frequency |
DC - 60 Hz |
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