Have you contacted ArtekMedia for any manual information? Also, have you checked/posted a question to the VNA Agilent Forum?
-John ============== > I've got an HP 8720D VNA. This has been out of support from Agilent > for 8 years, so its getting on a bit. There's a clock in the > instrument which keeps the date and time. This is losing about 1 day > per month (rough guess), so it has slowed by a bit over 3%. > > I'm guessing this is likely to be a battery running flat, but are > there any other likely causes? I know crystal can jump in frequency, > but I'm guessing not by 3%, but perhaps if there was stress in the > crystal, it might be. > > It does not help the fact I can't find a service manual for this > instrument. It's also a fairly expensive bit of kit (I paid $16,000 a > few months back), so I'm not keen to screw it up. If need be, I'll > write a bit of code which sets the clock from my computer whenever the > GPIB is used. I've no need for precision time keeping on this, but it > would be nice to have a copy of the date and time on any printouts. > That's not possible when the clock runs so slow. > > On the off chance anyone does have a service manual for an 8720D, > please let me know. I'll buy a copy if need be. There is not one on > the Agilent web site - only the user manual. > > Dave > > _______________________________________________ > 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. > > _______________________________________________ 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.
