Spectrum Masterâ„¢ User Guide : General Information : Calibration and Verification
 
Calibration and Verification
Anritsu recommends annual calibration and performance verification by local Anritsu service centers. The Spectrum Master is self-calibrating and there are no field-adjustable components. Contact information for Anritsu Service Centers is available at: http://www.anritsu.com/contact-us.