Spectrum Analyzer Measurements 3-1 Introduction
Spectrum Analyzer MG PN: 10580-00447 Rev. H 3-1
Chapter 3 — Spectrum Analyzer
Measurements
3-1 Introduction
The purpose of this chapter is to provide a starting point for making basic spectrum measurement setups. This
chapter describes general instrument setup, including setting up frequency, bandwidth, amplitude, span, limit
lines, and markers. After measurements are taken, refer to “File Management” section of Instrument
Overview chapter of the user guide and Section 3-25 “Saving and Recalling Measurements” on page 3-120 for a
detailed description of saving, recalling, and managing measurement files. For detailed information about
other specific measurements, refer to the appropriate chapter in this guide.
This spectrum analyzer measurements chapter includes sections that describe resolution bandwidth, video
bandwidth, sweep, and attenuator functions. For example, resolution bandwidth is determined by the
intermediate frequency (IF) filter bandwidth. The spectrum analyzer traces the shape of the IF filter as it
tunes past a signal. If more than one IF filter is used in a spectrum analyzer, then the narrowest one
dominates and is considered the resolution bandwidth.
Spectrum analyzer measurements include the use of additional functions beyond frequency, span, amplitude,
and marker functions. Section 3-12 through Section 3-22 cover field measurements and additional smart
measurements provided by various options.
3-2 Connecting a Signal Source
The basic setup starts with connecting a signal source to the RF IN port of the instrument. For over-the-air
measurements, connect an antenna that is appropriate for the frequency range to be measured. For direct
conducted measurements, ensure the RF source does not over power the input of the analyzer.
After an RF source is connected to the input connector, follow the sections below for setting up the
measurement parameters.
Note
For connector panels descriptions and torque specifications, refer to the product user guide. For
RF input power limitations, refer to the product technical data sheet.
To Next Page
Loading...
