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Absorbing Clamp

MDS 21Bzoom
  • As specified in CISPR 16-1-3/EN 55016-1-3
  • Disturbance power measuring, according to CISPR 16-2-2/EN 55016-2-2, CISPR 13/EN 55013, CISPR 14-1/EN 55014-1 and EN 50083-2
  • Excellent for using as diagnostic tool and for measurements of screening attenuation of coaxial cables
  • Supplied with 6 dB attenuator and RF cable

In connection with a measuring receiver according to CISPR 16-1-1, the absorbing clamp MDS enables to measure the interference capability of radio interferers, such as domestic appliances, electric tools etc. directly; viz. by measuring the power generated by the interferer and fed to its supply cable.
The absorbing clamp measurement method (ACMM) is described in Clause 7 of CISPR 16-2-2: Specification for radio disturbance and immunity measuring apparatus and methods – Part 2-2: Methods of measurement of disturbances and immunity – Measurement of disturbance power. The absorbing clamp itself is described in CISPR 16-1-3: Radio disturbance and immunity measuring apparatus – Ancillary equipment – Disturbance power.

Frequency range: 30 MHz to 1000 MHz
Typical clamp factor:

see graph

Calibrated for receiver impedance:

50 Ω


N, female

Max. current ( f < 500 Hz ):

30 A

Max. input power for immunity tests:

5 W

Diameter of appliance power cable:

up to 20 mm

Dimension (WxHxD):

610 mm x 115 mm x 80 mm


approx. 6.3 kg


for indoor use only


+5 °C up to +40 °C

Relative humidity:

up to 80%

Typical clamp factor in dB (pW/µV) inclusive 6 dB attenuator and 5 m cable RG223U

Clamp factor
  • Related Accessories


  • MBT 2

    Hand-Operated Slide Lane for Disturbance Power Measuring





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Brian Huntsman
Astrid Wälchli Schreiber
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