Nigel, is the 9010A vs 9020A differences document from Fluke in the ttl archive ftp site ? i am interested in reading this doco. if not, any chance you could send me a copy of it ? Also, any luck with control software for this via the iee488 i/f ? doing a little research, there is a USB to ieee488 interface board link here: http://galvant.ca/shop/gpibusb/ at a low cost. looks like this is used as a serial interface (pcb does the rest) so could use any serial software such as putty maybe ? i havent tried this myself - i am going to try piero's rs232/usb interface for the 9010a first to see if my 9020a recognises it. cheers andy _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/