Agilent N9039A Rf Preselector Overview - Agilent Technologies N9039A Service Manual

Overview

Agilent N9039A RF Preselector Overview

Agilent N9039A RF Preselector Overview

The Agilent N9039A RF Preselector has been specifically designed to enable an
Agilent PSA Spectrum Analyzer to function as a high-performance test receiver
for making CISPIR 16 compliant commercial EMI (Electro-Magnetic
Interference) measurements. Throughout this document the phrase EMI
Measurement Receiver will refer to an Agilent PSA used with an Agilent N9039A
RF Preselector.
N9039A and PSA work together to form an EMI Measurement Receiver that is
fully compliant to the receiver standards described in CISPR (Special Committee
on Radio Interference) Publication 16, C.I.S.P.R. Specification for Radio
Interference Measuring Apparatus and Measurement Methods. This type of
receiver is used for making measurements according to various governmental
standards, such as FCC (U.S.A.), EN (Europe), and VCCI (Japan) regulations.
The Agilent N9039A RF Preselector and the Agilent PSA are connected together
via several cables on the front and rear panels to form a single instrument. All
control for both units is handled by the PSA. N9039A is used to prevent overload
conditions of the PSA input mixer caused by broadband, impulse signals. This
improves the sensitivity of the EMI Measurement Receiver and reduces the
amount of input attenuation needed.
The N9039A has Windows XP Pro built in as the operating system, which expands
the usability of the instrument.
The service strategy for the N9039A is assembly level repair, not component level.
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