hp_8561E_info

8560E-19CSupersedes:8560E-19BHP 8560E Portable Spectrum Analyzer8560E-19 C Seria1 Numbers0000A00000/3745A033438561E-15c SerialNumbers0000A00000/3745A021708562E-07CSerialNumbers0000A00000/3745A006098563E-19CSerialNumbers0000A00000/3745A082088564E-14 C Seria1 Numbers0000A00000/3745A010728565E-14CSerial Numbers 0000A00000/3745A00838Serial Numbers as of 31 December,19968560E:3650A027088561E:3650A017438562E:3650A002598563E:3650A062738564E:3650A006808565E:3650A00576Year 2K Update InformationTo Be Performed By:HP-Qualified PersonnelSituation:The HP8560 Series portable spectrum analyzers with firmwarerevisions earlier than 971024 have two year 2000 issues only whenused with the HP 85620 Mass Memory Module (MMM)TIMEDATE andAUTOEXECUTE functions.The MMM is used to store large numbers oftraces,execute downloadable programs (DLPs)and personalities(e.g.HP 85671A Phase Noise Utility),and do limit-line pass/failtesting.Here are the descriptions of the bugs and workarounds:1.Timedate Stamp on Saved TracesThe time/date stamp is stored with all traces.Whenever acatalog is executed,either from the front panel or overHP-IB,the order in which the catalog appears will becompromised by the fact that only two digits of the yearare generated from the real-time clock (RTC,hardware).This most directly affects traces which are either storedautomatically (using the AUTOSAVE feature)or those traceswhich are stored without a unique title.For example,if atrace is stored without a title,the name becomes:TRACEYYMMDDHHMMSSWhere YY year,MM month,DD day,HH hour,etc.The obvious sorting order becomes significant based on theyear.The year 2000 is represented by 00 and thereforesorts before any previous year.Since it is highly unlikely these analyzers and the MMMwill be used after 2089 (100 years after the MMM wasintroduced),all traces saved will have a unique filename.The sorting issue can be resolved by adding 1900 to allyears 89 through 99 and above and adding 2000 to all years00 through 88.This can be done either mentally duringfront-panel operation or programmatically during remoteoperation.2.AUTOEXECute Date LimitationsThe AUTOEXEC function allows DLPs to be executed,ortraces saved automatically when a certain criteria hasbeen met.Criteria can be either a specified timeinterval,end-of-sweep (EOS),or a limit-line failure.When setting the autoexecution criteria,it is necessaryto specify a start and stop date.Currently,only datesbetween 1 Jan 1988 and 31 Dec 1999 are acceptable dates.