Definitions
All specifications and characteristics apply over a 25 ±5 °C range (unless otherwise stated) and 90 minutes
after the instrument has been turned on.
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. The following conditions must be met:
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FieldFox has been turned on at least 90 minutes
FieldFox is within its calibration cycle
Storage or operation at 25 ±5 °C range (unless otherwise stated)
Typical (typ.)
Expected performance of an average unit over a 20 °C to 30 °C temperature range after being at ambient
temperature for two hours, unless otherwise indicated; does not include guardbands. It is not covered by the
product warranty. The FieldFox 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 instruments 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.
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