208 Keysight N9927-90001 User’s Guide
RTSA (Real-Time Spectrum Analyzer) Mode—Option 350 (CPU2 Only)
RTSA Mode Settings
When high power levels are present at the RF Input port, internal attenuation
can be switched in to keep the FieldFox receiver from compressing. At
extremely high power levels, use external attenuation to protect the internal
circuitry from being damaged.
The displayed power level is automatically adjusted for RF Attenuation. As the
attenuation value changes, the displayed power level should NOT change.
How to set Attenuation
— Press
Scale/Amptd
.
— Then
RF Atten Man Auto
—
Auto
RF Attenuation is set by adjusting the acquisition. As the acquisition is
lowered, for example from –10 dBm to –30 dBm, the FieldFox assumes that
you are looking at low-level signals. The RF Attenuation value is
automatically lowered in 5 dB steps to allow low-level signals to be viewed.
—
Man
RF Attenuation is set manually. Enter a value between 0 to 30 dB in
5 dB steps using the numeric keypad, the
arrows, or the rotary knob.
Then press
Enter
.
#Atten xx dB is shown at the top of the screen. (#) means manual setting.
Preamplifier Control (Opt 235)
When
very low-level
signals are analyzed, an internal preamplifier can be used
to boost the signal level by approximately 15 to 20 dB (depending on model).
The gain of the preamp is NOT adjustable. The displayed signal level is
automatically adjusted for the increase in system gain, therefore turning the
Preamp ON should NOT cause a change to the displayed signal.
How to control the Preamp
By default, the preamp is OFF.
— Press
Scale/Amptd
.
—
Preamp ON OFF
When ON,
PA
is shown to the left of the graticules on the
display.
The FieldFox can be damaged with too much power. Refer to the FieldFox
http://literature.cdn.keysight.com/litweb/pdf/5990-9783EN.pdf.
RF Damage Level: +25 dBm (N995xA & N996xA) and +27 dBm (all others)
DC Damage Level: ±50 VDC
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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