1-5 Calibration and Verification General Information
1-8 PN: 10580-00318 Rev. P S412E UG
1-5 Calibration and Verification
The LMR Master is a field portable unit operating in the rigors of the test environment. In
order to ensure measurement accuracy, RF calibration (OSLT, for example) must be
performed prior to making a measurement in the field.
The LMR Master has no field-adjustable components. The RF calibration components,
however, are crucial to the integrity of the calibration and must be periodically verified to
ensure their performance. This is especially important if the components have been dropped
or over-torqued.
Anritsu recommends an annual calibration and performance verification of the LMR Master
and the OSL calibration components and InstaCal module by local Anritsu service centers.
The LMR Master is self-calibrating and has no field-adjustable components. The OSL
calibration components are crucial to the integrity of the calibration. As a result, they must be
verified periodically to ensure performance conformity. This is especially important if the
OSL calibration components have been accidentally dropped or over-torqued. Contact
information for Anritsu Service Centers is available at http://www.anritsu.com/contact-us.
Note
For best calibration results (compensation for all measurement uncertainties),
ensure that the calibration is performed at the end of the test port or optional
extension cable (that is, at the same point that the device that is to be tested (DUT)
will be connected).
Caution
For best results, use an Anritsu phase stable Test Port Extension Cable, such as
those listed in the Technical Data Sheet for your instrument (refer to Appendix A).
Use of a typical laboratory cable to extend the LMR Master test port to the device
under test, or any bending of the cable subsequent to the OSL or OSLT calibration,
may cause uncompensated phase reflections inside the cable. Reflections of this
type cause measurement errors, which are more pronounced at higher frequencies.
To Next Page
Loading...
