Agilent Technologies 35670A User Manual

To display a spectral map
1 Complete the one of the previous tasks: “To measure a wideband spectrum” or “To
measure a narrowband spectrum.”
2 Activate the trace you want to use for the spectral map.
3 Press [
Disp Format
][
WATERFALL SETUP
], then press [
WATERFALL ON OFF
]to
highlight ON.
4 If averaging is enabled, press [
Avg
], then set [
FAST AVG ON OFF
] to ON,
[
REPEAT ON OFF
] to ON, and [
UPDATE RATE
] equal to [
NUMBER AVERAGES
].
5 Press [
Start
] to begin measuring.
When rms, time, or peak hold averaging is selected, the analyzer normally stops
measuring after it has finished averaging the specified number of measurements.
Setting [
REPEAT ON OFF
] to ON allows the analyzer to begin averaging another set of
measurements immediately after it finishes the preceding set. Setting
[
FAST AVG ON OFF
] and [
UPDATE RATE
] as described in step 4 ensures that each trace
in the map represents a completed average.
For more information on using the waterfall feature, refer to online help or chapter 9,
“Formatting the Display.”
In the example here, a spectral map clearly reveals
frequency change of the swept test signal.
Agilent 35670A
Operator's Guide Measuring Spectra and Networks
4-9

Agilent Technologies 35670A Specifications

General

Brand	Agilent Technologies
Model	35670A
Category	Measuring Instruments
Language	English