395
Keysight Handheld Analyzers
N99xxA User’s Guide
23 Noise Figure Mode (Option 356 – CPU2 Only)
IMPORTANT!
Noise Figure mode uses DC variable voltage source (VVS) –
(Option 309) during the measurements. The voltage might be as high as
28V during the measurement. During the noise figure measurement,
always make sure there are no voltage sensitive devices connected to the
DC SMB output port. When you exit the Noise Figure mode, the VVS
voltage is reset to 1V to avoid potentially damaging your devices. Refer to
‘‘‘fS
.
When you initially change the FieldFox mode to Noise Figure, the FieldFox
displays the following message for ten seconds:
"
Ensure your Noise Source is connected to the VVS DC Output
It (VVS) will be driven up to +28V during the measurement
".
Noise figure requires these options:
—
Spectrum analyzer mode (Option 233—Combination Analyzers Only)
— Preamplifier (Option 235)
—
DC variable voltage source (Option 309)
—
https://literature.cdn.keysight.com/litweb/pdf/5990-9783EN.pdf
)
Not required, but recommended for improved accuracy:
—
External preamplifier (U7227A/C/F and U7228A/C/F). Refer to
www.keysight.com/find/usb-preamp
.
Noise figure mode sets the sweep to
Continuous OFF
to allow time for connecting a noise
source, before beginning any measurements.
Summary of Contents for N9913A
Page 6: ...6 ...
Page 106: ...106 Keysight N9927 90001 User s Guide NA Network Analyzer Mode NA Mode Settings ...
Page 202: ...202 Keysight N9927 90001 User s Guide SA Spectrum Analyzer Mode Channel Measurements ...
Page 444: ...444 Keysight N9927 90001 User s Guide Noise Figure Mode Option 356 CPU2 Only Troubleshooting ...
Page 470: ...Data Analysis Features All about Scale Settings 470 Keysight N9927 90001 User s Guide ...
Page 546: ...546 Keysight N9927 90001 User s Guide Connector Care Review ...
Page 548: ...548 Keysight N9927 90001 User s Guide Connector Care Review ...
Page 550: ...550 Keysight N9927 90001 User s Guide Specifications Data Sheet ...
Page 553: ...553 Keysight Handheld Analyzers N99xxA User s Guide D Korean Battery Safety Translation ...
Page 554: ...554 Keysight N9927 90001 User s Guide Korean Battery Safety Translation ...
Page 556: ...556 Keysight N9927 90001 User s Guide Keysight Software End User Licensing Agreement EULA ...
Page 557: ...Keysight N9927 90001 User s Guide 557 Keysight Software End User Licensing Agreement EULA ...
Page 558: ...558 Keysight N9927 90001 User s Guide Keysight Software End User Licensing Agreement EULA ...
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