6

Definitions

Specification (spec.)

Warranted performance. Specifications include guardbands to account for the expected statistical performance

distribution, measurement uncertainties, and changes in performance due to environmental conditions. All

specifications and characteristics apply over a 25°C ±5°C range ambient and module temperature between 33°C to

46°C (unless otherwise stated). The following conditions must be met:



Instrument has been turned on for 60 minutes with PXI VNA application running.



Instrument is within its calibration cycle.



Instrument remains at a stable surrounding environment temperature (between -10°C to 55°C) for 60 minutes

prior to turn-on.

Characteristic (char.)

A performance parameter that the product is expected to meet before it leaves the factory, but that is not verified in

the field and is not covered by the product warranty. A characteristic includes the same guardbands as a specification.

Typical (typ.)

Expected performance of an average unit at a stable temperature between 25°C ±5°C for 60 minutes prior to turn-on

and during operation; does not include guardbands. It is not covered by the product warranty. The instrument must be

within its calibration cycle.

Nominal (nom.)

A general, descriptive term or design parameter. It is not tested, and not covered by the product warranty.

Calibration

The process of measuring known standards to characterize an instrument's systematic (repeatable) errors.

Corrected (residual)

Indicates performance after error correction (calibration). It is determined by the quality of calibration standards and

how well "known" they are, plus system repeatability, stability, and noise.

Uncorrected (raw)

Indicates instrument performance without error correction. The uncorrected performance affects the stability of a

calibration

Temperatures referred to in this document are defined as follows:



Full temperature range = individual module temperature of 10°C to 70°C, as reported by the module, and

environment temperature of 0°C to 55°C.



Controlled temperature range = individual module temperature of 33°C to 46°C, as reported by the module, and

environment temperature of 20°C to 30°C.

Frequency break points

For all tables in this data sheet, the specified performance at the exact frequency of a break is the degraded value of

the two specifications at that frequency, unless otherwise indicated.