Electromagnetic Compatibility

This product conforms with the protection requirements of European Council Directive

89/336/EEC for Electromagnetic Compatibility (EMC).

The conformity assessment requirements have been met using the technical construction

file route to compliance, using EMC test specifications EN 55011:1991

(Group 1, Class A) and EN 50082-1:1992.

In order to preserve the EMC performance of the product, any cable which becomes

worn or damaged must be replaced with the same type and specification.

Radio-Frequency Electromagnetic

Field Immunity

When a 3 Vm-1 radio-frequency electromagnetic field is applied to the noise figure

analyzer according to IEC 61000-4-3:1995, degradation of performance may be observed.

When the frequency of the incident filed matches the frequency of a measured noise

figure or gain, the values displayed will deviate from those expected. This phenomenon

will only affect that specific frequency, and the analyzer will continue to perform to

specification at all other frequency sample points.

The noise figure analyzer may be unable to calibrate a chosen frequency sample point,

1. Radiated immunity testing. When tested at 3 V/m, according to IEC 801-3/1984, the displayed average noise level will be within specifications over the full

immunity test frequency range of 27 MHz to 500 MHz except at the immunity test frequencies of 223.5714 MHz +/- selected resolution bandwidth, and

437.1429 MHz +/- selected resolution bandwidth, where the displayed average noise level can be up to -45 dBm. When the noise figure analyzer

tuned frequency is identical to these immunity test frequencies, the measurements could be corrupted and there may be signals of up to -70 dBm

displayed on the screen.

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