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AGILENT 35670A
Supplemental Operator’s Guide
15
Section 7 : Measuring Dual Channel Spectra
This section contains procedures for setting up and measuring a dual channel
spectrum using an AGILENT 35670A Dynamic Signal Analyzer. Procedures are
similar to those in the section “Measuring Single Channel Spectrum,” however
display setup and results are different and will be described here.
To set up the analyzer for a dual channel spectrum measurement, proceed as follows:
Presetting the Analyzer
• Press the green [Preset] hardkey
• Press [DO PRESET] softkey (F1).
• Press the [Pause/Cont] hardkey if desired.
Selecting Dual Channel Operation
Measure two signals with the default two-channel instrument mode. If the analyzer
has been changed to 1 or 4 channel operation, then follow these steps:
• Press the [Inst Mode] hardkey
• Press [CHANNELS 1 2 4 ] softkey (F7) until 2 is highlighted.
Selecting Frequency Span
Reduce the span to 800 Hz as follows:
• Press the [Freq] hardkey
• Enter 800 and then press the [Hz] softkey (F2)
Displaying Dual-Channel Power Spectrum Measurements
To see the results of a dual-channel measurement, the analyzer’s display format must
be changed to display two traces. Proceed as follows:
• Press the [Disp Format] hardkey.
• Press the [UPPER/LOWER] softkey (F3)
• Press the [Active Trace] hardkey.
• Press the [A] softkey (F1).
• Press the [Meas Data] hardkey.
• Press the [CHANNEL 1 234] softkey (F1) until 1 is highlighted.
• Press the [PWR SPEC CHANNEL 1] softkey (F3)
• Press the [Scale] hardkey.
• Toggle the [AUTOSCALE ON OFF] softkey (F1) until ON is highlighted.
• Press the [Active Trace] hardkey again.
• Press the [B] softkey (F2).