Chuck, Most replies to your questions came before I read this :-)
The last tests I reported on yesterday were done with only the 3478 on the bus. I'll be glad to check the waveform with a scope if that can help. Didier KO4BB > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Chuck Harris > Sent: Wednesday, November 28, 2007 12:45 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] OT: Prologix GPIB and HP3478A...The Answer! > > Hi Abdul, > > Bear in mind that it isn't proved that my HP3478A is working > flawlessly. > > It is possible that it has a flaw in its 488 drivers that > prevents them from ever putting pull ups on the bus. This > wouldn't be noticed with a controller that fully met the 488 > standard, such as the one in the HP85B, or on a 488 bus that > had more than one instrument. > > You may still be safe with your cost saving decision. Didier > Juges says his 3478A works just fine with his Prologix > controller. So we need to ask him if he has ever > successfully used his Prologix controller with only the > HP3478A on the bus... and what is the build number of his 3478A. > > Mine is: 2911A523XX. > > -Chuck Harris _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
