1-9 Calibration Requirements Chapter 1 — General Information
1-6 PN: 10580-00175 Rev. N MS272xB + MS8911B UG
1-9 Calibration Requirements
The Spectrum Master loads factory calibration data during start-up, eliminating the need for
daily calibration checks. In WCDMA modes, an additional automatic calibration is performed
as the internal temperature of the Spectrum Master changes (to insure the best possible
measurement results).
Although the Spectrum Master does not require daily field calibration, Anritsu Company
recommends annual calibration and performance verification by local Anritsu service centers.
Instrument Warmup
Anritsu recommends allowing the instrument to warm up to typical operation temperature
before calibrating.
The instrument will require a new OSL calibration if the internal instrument temperature
changes more than 15 ºC after calibration.
1-10 Preventive Maintenance
Spectrum Master preventive maintenance consists of cleaning the unit and inspecting and
cleaning the RF connectors on the instrument and on all accessories. Clean the
Spectrum Master with a soft, lint-free cloth that is dampened with water or with water and a
mild cleaning solution.
Clean the RF connectors and center pins with a cotton swab dampened with denatured
alcohol. Visually inspect the connectors. The fingers of N(f) connectors and the pins of N(m)
connectors should be unbroken and uniform in appearance. If you are unsure whether the
connectors are good, then gauge the connectors to confirm that their dimensions are correct.
Visually inspect test port cables. Test port cables should be uniform in appearance, not
stretched, kinked, dented, or broken.
Caution To avoid damage to the display or case, do not use solvents or abrasive cleaners.
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