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SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)FUTURE
SA Mode Settings
The baseband path, which is available to analyze signals up to 6.5 MHz, is
disabled by default, and for Preset. When disabled, the SA Receiver maintains
the standard analog mixing stages to analyze this low frequency (<6.5MHz)
range.
How to select the Baseband Path
1. Press Freq/Dist >
2. Then
3. To complete the Baseband enabling (activation) process:
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Baseband [Disabled]
— Optional: Adjust the preamp /gain for a lower power setting
(Requires Option 235):
— Press Freq/Dist >
——b1 Preamp Gain High Low
——b2 Preamp Gain High Low
— In normal SA mode, the RF portion of the frequency spectrum must
include a spectrum that is ≤6.5 MHz.
— Optional: In SA's IQ Analysis measurement, the IF path must be
Narrow 10 MHz.
a. Press Meas Setup 4 >
b. Verify
IF Output Use
Press to
Enabled]
(Default == Disabled).
Baseband [Disabled]
(standard preamp), Low is approximately –3 dB
from the High (standard preamp) setting).
b1 Preamp Gain softkey is only active /available when
Baseband is enabled.
b1 Preamp Gain is only effective for RF frequencies
between 6.5 MHz and 15 MHz. Preamp Low does not
impact frequencies
operates for frequencies
(standard preamp), Low is approximately –3 dB
from the High (standard preamp) setting).
b2 Preamp Gain softkey is only active /available when
Baseband is enabled.
b2 Preamp Gain is only effective for RF frequencies
>
15 MHz.
IQ Analysis
is set to [Narrow].
Keysight N9915-90020 User's Guide
Then choose:
(Default == High
>
15 MHz. Standard preamp
>
15 MHz.
(Default == High
and then [General].
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