4 Keysight U2781A User’s GuideNoticesCopyright Notice© Keysight Technologies 2006 - 2017No part of this manual may bereproduced in any form or by anymeans (including electronic storageand retrieval or translation into aforeign language) without prioragreement and written consent fromKeysight Technologies as governed byUnited States and internationalcopyright laws.TrademarksPentium is a U.S. registered trademarkof Intel Corporation.Microsoft, Visual Studio, Windows, andMS Windows are trademarks ofMicrosoft Corporation in the UnitedStates and/or other countries.Manual Part NumberU2781-90003EditionEdition 8, June 1, 2017Printed in:Printed in MalaysiaPublished by:Keysight TechnologiesBayan Lepas Free Industrial Zone,11900 Penang, MalaysiaTechnology LicensesThe hardware and/or softwaredescribed in this document arefurnished under a license and may beused or copied only in accordance withthe terms of such license.Declaration of ConformityDeclarations of Conformity for thisproduct and for other Keysightproducts may be downloaded from theWeb. Go to http://www.keysight.com/go/conformity. You can then search byproduct number to find the latestDeclaration of Conformity.U.S. Government RightsThe Software is “commercial computersoftware,” as defined by FederalAcquisition Regulation (“FAR”) 2.101.Pursuant to FAR 12.212 and 27.405-3and Department of Defense FARSupplement (“DFARS”) 227.7202, theU.S. government acquires commercialcomputer software under the sameterms by which the software iscustomarily provided to the public.Accordingly, Keysight provides theSoftware to U.S. governmentcustomers under its standardcommercial license, which is embodiedin its End User License Agreement(EULA), a copy of which can be foundat http://www.keysight.com/find/sweula. The license set forth in theEULA represents the exclusive authorityby which the U.S. government may use,modify, distribute, or disclose theSoftware. The EULA and the license setforth therein, does not require orpermit, among other things, thatKeysight: (1) Furnish technicalinformation related to commercialcomputer software or commercialcomputer software documentation thatis not customarily provided to thepublic; or (2) Relinquish to, orotherwise provide, the governmentrights in excess of these rightscustomarily provided to the public touse, modify, reproduce, release,perform, display, or disclosecommercial computer software orcommercial computer softwaredocumentation. No additionalgovernment requirements beyondthose set forth in the EULA shall apply,except to the extent that those terms,rights, or licenses are explicitly requiredfrom all providers of commercialcomputer software pursuant to the FARand the DFARS and are set forthspecifically in writing elsewhere in theEULA. Keysight shall be under noobligation to update, revise orotherwise modify the Software. Withrespect to any technical data asdefined by FAR 2.101, pursuant to FAR12.211 and 27.404.2 and DFARS227.7102, the U.S. governmentacquires no greater than Limited Rightsas defined in FAR 27.401 or DFAR227.7103-5 (c), as applicable in anytechnical data.WarrantyTHE MATERIAL CONTAINED IN THISDOCUMENT IS PROVIDED “AS IS,”AND IS SUBJECT TO BEINGCHANGED, WITHOUT NOTICE, INFUTURE EDITIONS. FURTHER, TO THEMAXIMUM EXTENT PERMITTED BYAPPLICABLE LAW, KEYSIGHTDISCLAIMS ALL WARRANTIES, EITHEREXPRESS OR IMPLIED, WITH REGARDTO THIS MANUAL AND ANYINFORMATION CONTAINED HEREIN,INCLUDING BUT NOT LIMITED TO THEIMPLIED WARRANTIES OFMERCHANTABILITY AND FITNESS FORA PARTICULAR PURPOSE. KEYSIGHTSHALL NOT BE LIABLE FOR ERRORSOR FOR INCIDENTAL ORCONSEQUENTIAL DAMAGES INCONNECTION WITH THEFURNISHING, USE, ORPERFORMANCE OF THIS DOCUMENTOR OF ANY INFORMATIONCONTAINED HEREIN. SHOULDKEYSIGHT AND THE USER HAVE ASEPARATE WRITTEN AGREEMENTWITH WARRANTY TERMS COVERINGTHE MATERIAL IN THIS DOCUMENTTHAT CONFLICT WITH THESE TERMS,THE WARRANTY TERMS IN THESEPARATE AGREEMENT SHALLCONTROL.Safety InformationCAUTIONA CAUTION notice denotes a hazard. Itcalls attention to an operatingprocedure, practice, or the like that, ifnot correctly performed or adhered to,could result in damage to the productor loss of important data. Do notproceed beyond a CAUTION noticeuntil the indicated conditions are fullyunderstood and met.WARNINGA WARNING notice denotes a hazard. Itcalls attention to an operatingprocedure, practice, or the like that, ifnot correctly performed or adhered to,could result in personal injury or death.Do not proceed beyond a WARNINGnotice until the indicated conditions arefully understood and met.