Technical data

All the previous technology history and knowledge acquired in using Agilent’s

power measurement equipment is preserved in the U2000 Series. Agilent

follows international standards and processes for assuring traceability to NMIs

(National Measurement Institutes) such as NIST in the U.S. Agilent’s Application

Note 1449–3, which provides exhaustive documentation on the subject. [Ref:

3]. This includes not only the detailed analysis of uncertainty factors, but also

extensive recommendations on how to improve measurement uncertainty and at

the same time reduce the effects of mismatches, and so forth.

Since the U2000 Series might be placed into operation in a location that does

not have ready access to a “Standard 50 MHz, 1 mW power source,” the user

will probably need to rely on the stability of the on-board correction data.

However, in critical measurements, with legal or economic considerations, it

is always possible to arrange to bring a traditional Agilent power meter to the

measuring point, or return the U2000 Series to an available power meter and

create the simple 50 MHz, 1 mW point reference.

Traceability and Uncertainty