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N8974A Datasheet(PDF) 10 Page - Keysight Technologies

Part No. N8974A
Description  NFA Series Noise Figure Analyzers
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Maker  KEYSIGHT [Keysight Technologies]
Homepage  http://www.keysight.com
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N8974A Datasheet(HTML) 10 Page - Keysight Technologies

 
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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,
if the frequency matches that of an incident electromagnetic field.1
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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