ADVANTEST R3131 Series User Manual

R3131 Spectrum Analyzer Operation Manual
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2.2.12 Intermodulation
2.2.12 Intermodulation
This section describes how to set up the attenuator (ATT) when using a spectrum analyzer which is receiv-
ing more than one input signal.
When signals with an excess amplitude are input, spurious signals produced by intermodulation are dis-
played. It is important that the ATT be adjusted to moderate the mixer input.
Setup
1. Connect the signal generators as shown in Figure 2-46.
R3131 Spectrum analyzer
connector I connector
Signal generator (SG2)
Signal generator (SG1)
"OUTPUT
Figure 2-46 Setup for Measuring Intermodulation
Power on
2. Turn the power on.
Setting the signal generators
This prepares the signal generator outputs.
Initialization
2-52
connector
3. Set SGI as follows: the frequency to 200.0 MHz; level to -4 dBm; modulation to
non-modulated mode; and output to ON.
4. Set SG2 as follows: the frequency to 200.2 MHz; level to -4 dBm; modulation to
non-modulated mode; and output to ON.
Each signal has an input level of -10 dBm.
This resets the current settings to the factory defaults.
5. Press SHIFT and CONFIG (PRESET).
The default settings have now been reset.

ADVANTEST R3131 Series Specifications

General

Brand	ADVANTEST
Model	R3131 Series
Category	Measuring Instruments
Language	English