Chapter 2-Spectrum Analyzer; Introduction; General Measurement Setups; Making Spectrum Analyzer Measurements - Anritsu BTS Master Manual

Chapter 2 — Spectrum Analyzer
2-1

Introduction

Spectrum analyzer measurements include the use of additional functions beyond frequency,
span, amplitude, and marker functions.
and settings for making spectrum analyzer measurements.
focus on resolution bandwidth, video bandwidth, sweep, attenuator, and detection functions.
Section 2-11 through
demonstrating field strength, occupied bandwidth, channel power, adjacent channel power
ratio, EMF, out-of-band spurious emissions, in-band/out-of-channel, AM/FM/SSB
demodulation, masks and carrier to interference ratio (C/I), coverage mapping, and
IQ waveform capture. Finally,
available in Spectrum Analyzer mode.
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General Measurement Setups

Refer to your instrument User Guide for instructions on setting up frequency, span,
amplitude, GPS, limit lines, markers, and file management.
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Making Spectrum Analyzer Measurements

Required Equipment
• Optionally, an antenna that is appropriate for the frequency range to be measured
Required Setup
• Place the instrument in Spectrum Analyzer mode. Refer to
Mode" on page
• Connect the input signal or antenna to the RF In test port.

Setting Frequency

The tuning frequency range can be entered in several different ways depending upon what
makes the most sense, either for the user or for the application. The center frequency and
span can be specified, the start and stop frequencies can be entered, or a signal standard and
channel number can be selected from the built-in list.
Offset Frequency
In addition, a user-defined frequency offset can be entered to adjust the frequency that is
displayed on the instrument from the actual swept frequency. For example, if the DUT is an
antenna system receiving signals in the 10 GHz range and offsetting the signals to the 1 GHz
range, you can set a frequency offset in the spectrum analyzer in order to display the actual
received antenna frequency in the sweep window. For a measurement example, see
Figure 2-40 on page
Spectrum Analyzer MG
Section 2-24 cover field measurements including brief examples
Section 2-25
1-1.
2-55.
PN: 10580-00349 Rev. M
Section 2-2 and Section 2-3
though Section 2-38
explain setup procedures
Section 2-4 through
detail the submenus
"Selecting a Measurement
Section 2-8
2-1