The Best Keysight-Agilent N9925A

Keysight-Agilent N9925A

Definitions
Specification (spec)
Specifications include guardbands to account for the expected statistical performance distribution, measurement uncertainties, and changes in performance due to environmental conditions. Specifications are warranted performance. FieldFox must be within its calibration cycle. No warm-up required for the specifications listed on pages 24 through 49.
Typical Describes additional product performance information not covered by the product warranty. It is performance beyond specifications that 80% of the units exhibit with a 90% confidence level over the temperature range 23 ± 5°C, unless otherwise noted. Typical performance does not include measurement uncertainty. FieldFox must be within its calibration cycle.
Nominal A general, descriptive term or design parameter. It is not tested, and not covered by the product warranty. FieldFox must be within its calibration cycle. Cable and Antenna Analyzer and Vector Network Analyzer
The performance listed in this section applies to the cable and antenna analyzer (referred to as CAT) and vector network analyzer (VNA) capabilities available in the following models: FieldFox RF & microwave (combination) analyzers: N9913A, N9914A, N9915A, N9916A, N9917A, N9918A N9950A, N9951A, N9952A

FieldFox microwave vector network analyzers: N9925A, N9926A, N9927A, N9928A
NOTE: Combination analyzers = Cable and antenna tester (CAT) + Vector network analyzer (VNA) + Spectrum analyzer (SA)

Cable and Antenna Analyzer and Vector Network Analyzer (continued) Test port output specifications
High power in N991xA and N992xA refers to the target output power level of the analyzer when the Power Setting is set to High.
As an example, if you have a frequency sweep from 3 to 6.5 GHz, the analyzer will achieve the power level of -1 dBm across the band.
Low power level for N991xA and N992xA analyzers is a flat -45 dBm across the whole frequency band and is the output of the analyzer when the Power Setting is set to Low.
High power in the N995xA refers to the target output power level of the analyzer when the Power Setting is set to High. As an example, if you have a frequency sweep from 39 to 46 GHz, the analyzer will achieve the power level of -2 dBm across the band. Low power level for N995xA analyzers is the lowest power level that can be set and is the output of the analyzer when the Power Setting is set to Low. Max leveled power in the N995xA refers to the maximum leveled (flattened) power that can be achieved across the designated frequency range. For example, if you have a frequency sweep from 32 to 44 GHz and set up the analyzer to measure all four Sparameters, needing both ports 1 and 2, the maximum power the analyzer can be set to is -6 dBm.

Cable and Antenna Analyzer and Vector Network Analyzer (continued)
CAT and VNA mode calibrations
FieldFox analyzers offer three tiers of calibrations, thus providing users with different levels of calibration effort and accuracy.
CalReady
CalReady is the most basic calibration and is sufficient for a quick pass/fail or go/no go verification. Every FieldFox is calibrated at the factory, at test ports 1 and 2, at room temperature. CalReady can be applied either as an “enhanced response CalReady” or a “2-port CalReady.” The default setting is 2-port CalReady, so correction is applied to both ports. A user preference allows user to change the CalReady methodology to enhanced response CalReady.

A 30-minute warm-up period is recommended for a quick test. A 90-minute warm-up is necessary for more stringent test requirements.

If CalReady is the basis for most measurements, the annual cal cycle must be followed, as the CalReady calibration will be updated during the annual cal cycle.