No response from the first post, so I am reposting. Seems like the more complicated the question, the more responses we get. This question must be too simple. :-) The GR1089 Conducted Immunity calibration is to be performed in a 50 ohm fixture, terminated on one side with 50ohms, the other side through an attenuator (also 50ohm impedance) to a measurement device. The test limit at 10khz is listed as 89 dBua. The calibration level, measured at the output of the calibration fixture, should therefore be 123 dBuV ( add 34 dB to convert >from dBuA to dBuV in a 50 ohm system). My question is this: Is there is a 6 dB adjustment in level to be included in the measurement? I have always calibrated without any 6dB adjustment (more severe test), but the question came up recently so I thought I would ask the question here. Bob Richards, NCT - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/
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