LAPLACE INSTRUMENTS RF300 Mk II-A, User Manual

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Laplace Instruments Ltd
Page 18
5.0 Calibration
The calibration technique is fully described in CISPR16. It requires the
use of a signal generator covering the range 9KHz to 30MHz with a
50ohm output that is calibrated for 1v rms emf.
See appendix A
The calibration data for each loop is virtually identical. The following
details therefore apply to all three axes, although full data for each axis is
given in the appendix.
For reference, the ‘ideal’ curve is shown in graph 1. This is taken directly
from EN55016, annex C, Figure C8.
The antenna factor data for the RF300 are also given.
This ‘antenna factor’ correction data effectively converts the output from
the RF300 (measured in dBuV) directly to dBuA.
The data can be used with any analyser or receiver capable of EMC
measurements.
The estimated measurement uncertainty is 3dB.
For a detailed explanation of the calibration of the RF300 and discussion
of changes to CISPR15 (EN55015) and CISPR16, see appendix B
If using the SA1002 or SA3000 analyser:
The RF300 is listed under the normal Inputs menu. Just select this
device and the software automatically applies the appropriate correction
factors so that the trace reads correctly in dBuA and can be compared
directly with the EN55015 limits.
Further details are given in section 6.1