Teseq CDNE M310 Coupling/Decoupling Network for Emission Measurement, 10 A, 30 to 300 MHz

CISPR 16-2-1’s most recent edition 3.0 specifies a new test method which allows the use of a coupling
/ decoupling network for emission measurement (CDNE) to measure disturbance voltages in the
30 to 300 MHz frequency range. This method enables EUTs to be connected directly to the CDNE, allowing
a single conducted emission measurement to replace a lengthy radiated emission test. Product standards
may use this fast, convenient and economical alternative.

CISPR 15 offers an independent method for measurement of radio disturbance characteristics of electrical
lighting equipment. This method specifies the use of a coupling / decoupling network (CDN) as defined
in IEC 61000-4-6 with an extended frequency range 30 to 300 MHz. Using a CDNE as described in CISPR
16-1-2 instead of CDN offers improved measurement reproducibility due to standard’s requirements for
more restrictive limits of asymmetrical impedance, phase angle, symmetrical impedance and internal
attenuation.

The Teseq CDNEs are compliant with the actual versions of CSIPR 16-1-2, CISPR 16-2-1 and CISPR 15’s
CDN method.

Features & specifications of Teseq CDNE M310:

• Frequency range: 30 to 300 MHz
• Power rating (EUT- and AE port)
  • AC max. voltage (line to ground): 300 V
  • AC max. voltage (line to line): 520 V
  • DC max. voltage: 300 V
  • Current max: 10 A
• Test voltage: 2000 V AC, 2 s
• Mains sockets (EUT- and AE port): 4 mm, safety
• Common mode impedance (EUT port): 150 Ω +10 / -20 Ω
• Phase angle (EUT port): 0° ±25°
• Differential mode impedance (EUT port): 100 Ω ±20 Ω
• Coupling path (EUT / RF port)
  • Connection (RF port): BNC, 50 Ω
  • RF voltage (generated from EUT): <10 V
• Transducer factor / Voltage division factor (EUT / RF port)
  • incl. internal 10 dB attenuator: 20 dB ±1.5 dB
• Insertion Loss (EUT / AE port), f <400 Hz: >0.1 dB
• Decoupling of CM disturbance (RF port / AE): >30 dB