ADVANTEST R3131 Series User Manual

R3131 Spectrum Analyzer Operation Manual
2.2.2 Displaying Spectrums and Operating the Markers
ADVANTEST R3131
REF -10.0 dBm
10dElf
REF
-10.0 dBm
Wed 10 Dec 1997Level
ATT 10dB A_wrt B_blnk
Norm Norm
Mater Ref Level
30.00 MHz
--9:511-dem ATT
AUTO /MNL
dB/div ▶
Linear
Units ▶
Ref
Offset
ON /OFF
CENTER 30.00 MHz SPAN 20.00 MHz
RBW 300 kHz VBW 100 kHz SWP SO ms
Figure 2-9 Peak Search Display Screen
Using the delta marker
This measures the frequency difference between a point 3 dB levels down and a point
60 dB levels down from the peak.
16. Press MKR.
The Marker (1) menu used with the marker function is displayed.
17. Press Delta Marker.
The delta marker is displayed on the trace peak, and the differences between the
marker and delta marker frequency and level are listed in the marker area.
18. Move the marker to the -3 dB point using the data knob while looking at the level
indication in the marker area and set it as precisely as possible (an exact setting
may not be possible due to resolution limitations).
The marker area now lists the frequency difference between the peak point and a
point 3 dB levels down from the peak.
2-21

ADVANTEST R3131 Series Specifications

General

Brand	ADVANTEST
Model	R3131 Series
Category	Measuring Instruments
Language	English