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　　Definitions

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　　General

　　Product data applies under the following conditions:

　　· Three hours storage at ambient temperature followed by 15 minutes warm-up operation

　　· Specified environmental conditions met

　　· Recommended calibration interval adhered to

　　· All internal automatic adjustments performed, if applicable

　　Specifications with limits

　　Represent warranted product performance by means of a range of values for the specified parameter. These specifications are

　　marked with limiting symbols such as , ≥, ±, or descriptions such as maximum, limit of, minimum. Compliance is ensured by

　　testing or is derived from the design. Test limits are narrowed by guard bands to take into account measurement uncertainties, drift

　　and aging, if applicable.

　　Specifications without limits

　　Represent warranted product performance for the specified parameter. These specifications are not specially marked and represent

　　values with no or negligible deviations from the given value (e.g. dimensions or resolution of a setting parameter). Compliance is

　　ensured by design.

　　Typical data (typ.)

　　Characterizes product performance by means of representative information for the given parameter. When marked with or as a

　　range, it represents the performance met by approximately 80 % of the instruments at production time. Otherwise, it represents the

　　mean value.

　　Nominal values (nom.)

　　Characterize product performance by means of a representative value for the given parameter (e.g. nominal impedance). In contrast to

　　typical data, a statistical evaluation does not take place and the parameter is not tested during production.

　　Measured values (meas.)

　　Characterize expected product performance by means of measurement results gained from individual samples.

　　Uncertainties

　　Represent limits of measurement uncertainty for a given measurand. Uncertainty is defined with a coverage factor of 2 and has been

　　calculated in line with the rules of the Guide to the Expression of Uncertainty in Measurement (GUM), taking into account

　　environmental conditions, aging, wear and tear.

　　Device settings and GUI parameters are indicated as follows: “parameter: value”.

　　Typical data as well as nominal and measured values are not warranted by Rohde & Schwarz.

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