ISN / CDN-C75E

Impedance Stabilization Network (ISN) for 75 Ω coaxial cables — measures common-mode conducted emissions on 75 Ω coax (CATV, broadcast, video) per EN 55022/32 (CISPR 22/32) and CISPR 16-1-2. ISN role typically applied 150 kHz–30 MHz.

150 Ω common-mode termination per CISPR 22/32 — standard-defined impedance presented to the EUT so disturbance voltage at the measurement port is stable and repeatable.

75 Ω BNC EUT and AE ports — direct mate to standard video / CATV coax interfaces.

Cable TV, broadcast, and head-end equipment — set-top boxes, cable modems, RF distribution amplifiers, and broadcast monitors with 75 Ω ports.

Video distribution and surveillance — analog/HD-SDI receivers, CCTV head-ends, and other 75 Ω RF or baseband video applications.

50 Ω BNC measurement port on top of housing — direct mate to spectrum analyzer / EMI receiver.

Also usable as a CDN for IEC/EN 61000-4-6 conducted immunity — secondary capability over the full 150 kHz–230 MHz band when needed.

Individually calibrated; unpainted bottom surface bonds directly to the reference ground plane — three-year warranty; pairs with the SPA-900TG series spectrum analyzer / EMI receiver.