Data Sheets
Definitions and Conditions
This data sheet provides performance information for Keysight N9042B Signal Analyzers.
Specifications describe the performance of parameters covered by the product warranty and apply to temperature ranges 15 to 40 °C, unless otherwise noted.
95th percentile values indicate the breadth of the population (approx. 2 σ) of performance tolerances expected to be met in 95 percent of the cases with a 95 percent confidence, for any ambient temperature in the range of 20 to 30 °C. In addition to the statistical observations of a sample of instruments, these values include the effects of the uncertainties of external calibration references. These values are not warranted. These values are updated occasionally if a significant change in the statistically observed behavior of production instruments is observed.
Typical values (typ) describe additional product performance information that is not covered by the product warranty. It is performance beyond specifications that 80 percent of the units exhibit with a 95 percent confidence level over the temperature range 20 to 30 °C. Typical performance does not include measurement uncertainty.
Nominal values (nom) indicate expected performance or describe product performance that is useful in the application of the product but are not covered by the product warranty.
The analyzer will meet its specifications when:
• It is within its calibration cycle
• Under auto couple control, except that Auto Sweep Time Rules = Accy
• For signal frequencies < 10 MHz, DC coupling applied.
• Analyzer is used in environment that falls within allowed operating range; and has been in that environment at least 2 hours before being turned on.
• Analyzer has been turned on at least 30 minutes with AutoAlign set to Normal; or, if Auto Align is set to Off or Partial, alignments must have been run recently enough to prevent an Alert message. Note that factory default is with the AutoAlign set to Light, which (compared to Normal) allows wider temperature changes before causing Alignments to run automatically. The benefit is that Alignments interrupt less frequently. The user can change AutoAlign to Normal if desired, and this setting will persist after power cycle or PRESET. If the Alert condition is changed from “Time and Temperature” to one of the disabled duration choices, the analyzer may fail to meet specifications without informing the user. In practice, the impact of such choices is primarily on Absolute Amplitude Accuracy.
• The term “mixer level” is used as a condition for many specifications in this document. This term is a conceptual quantity that is defined as follows: Mixer Level (dBm) = RF Input Power Level (dBm) - (Mechanical Attenuation) (dB) - (Electronic Attenuation) (dB).
• The term “attenuation” is used for many specifications in this document; this refers to the Mechanical Attenuator, unless otherwise stated.
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