508 Keysight Technologies N9040B UXA Signal Analyzer Service Guide
Functional Tests
Displayed Average Noise Level (DANL)
Displayed Average Noise Level (DANL)
Test Limits (with 0 dB input attenuation)
See
for values.
The Displayed Average Noise Level (DANL) of the signal analyzer is measured
across a 10 kHz frequency span at several center frequencies. The analyzer
input is terminated into a 50W load. A test is performed to assure the
measurement is not performed in the presence of a residual response. The
measurement is then averaged, and the result is normalized to a 1 Hz
bandwidth.
Figure 17-1
DANL Test Setup
Procedure
1.
Configure the equipment as shown in
.
2.
Press
Mode/Meas
,
Spectrum Analyzer
,
OK
,
Mode Preset
on the analyzer.
3.
Set up the signal analyzer by pressing:
FREQ Channel
,
Center Frequency
, 10,
MHz
Input/Output
, select
INPUT FREQ (Channel)
,
RF
,
RF Coupling
, select
DC
Span
, 10,
kHz
AMPTD Y Scale
, –70,
dBm
AMPTD Y Scale
, Attenuation,
MechAtten
, 0,
dB
BW
,
Res BW
, 1,
kHz
BW
,
Video BW
, 100,
Hz
Meas Setup, Average/Hold, Number
, 20,
Enter
Trace
,
Trace Average
Single
Item
Critical Specifications
(for this test)
Recommended
Keysight Model
Termination, 50W Type-N(m)
Frequency: DC to 18 GHz
909A Option 012
Содержание N9040B Option 513
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Страница 240: ...240 Chapter 11 Hardware Options A21 Wideband Analog IF Troubleshooting Figure 11 1 Analog IF Block Diagram ...
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Страница 306: ...306 Keysight Technologies N9040B UXA Signal Analyzer Service Guide Replaceable Parts Figure 14 2 External Hardware ...
Страница 338: ...338 Keysight Technologies N9040B UXA Signal Analyzer Service Guide Replaceable Parts Figure 14 28 Chassis ...
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Страница 502: ...502 Keysight Technologies N9040B UXA Signal Analyzer Service Guide Post Repair Procedures ...
Страница 532: ...532 Keysight Technologies N9040B UXA Signal Analyzer Service Guide Functional Tests Scale Fidelity ...
Страница 536: ...536 Keysight Technologies N9040B UXA Signal Analyzer Service Guide Instrument Software Software Updates ...
Страница 541: ...Index Index 541 Y yellow LED 48 51 yig filter see A12 YTF YTF see A12 YTF ...