[time-nuts] VNA design

[paul swed]

Thanks


On Wed, Jun 4, 2014 at 7:29 AM, Scott McGrath <scmcgrath at gmail.com> wrote:

> The way the 8410 was automated HP built an add on DAC module to convert
> the plotter outputs to digital form and used an 8350 sweeper to replace the
> BWO sweepers commonly used by 8410 systems and a relay controller to do the
> test set switching
>
> They called this rig the 'Automatic Network Analyzer'
>
> Sent from my iPhone
>
> > On Jun 3, 2014, at 2:22 PM, paul swed <paulswedb at gmail.com> wrote:
> >
> > Boy this is not time-nuts and I had been deleting the thread. No problem
> > with the thread. Just I have HP VNAs. Yes including what caught my eye
> the
> > 8410 that Scott spoke of and its still operational. Heavy as heck like
> real
> > equipment should be.
> > I am curious I sort of thought the 8410 was pre micro processor and yet
> > some how the HP85 hooked up to it??
> >
> > I have the 8757 also so. Great comment by Dave on the fact that someone
> > will give out some of the old options. Now I have to figure out what on
> > earth that might actually mean.
> > Regards
> > Paul
> > WB8TSL
> >
> >
> > On Tue, Jun 3, 2014 at 12:57 PM, Dr. David Kirkby <drkirkby at gmail.com>
> > wrote:
> >
> >>> On 3 June 2014 16:54, Scott McGrath <scmcgrath at gmail.com> wrote:
> >>>
> >>> Where are the software options for the 8753 coming from.  Agilent will
> >> not even talk about a VNA that's older than the PNA series
> >>
> >> This has been discussed on the HP/Agilent mailing list. Basically a
> >> couple of people that work at Agilent, one of whom is
> >> "caesarv at email.com" (yes email, not gmail), will give out options for
> >> 8753 for non-commercial use. Just send him your S/N. I know he also
> >> did likewise for an older 8720 instrument (I think 8720C).
> >>
> >> Although he can, he will NOT do it for PNAs. That is one advantage of
> >> getting a used 8753/8720 over a used PNA!
> >>
> >> Agilent offered to repair my 8720D a couple of years ago, and managed
> >> to give me a quote via email as it was abundantly obvious what the
> >> problem was - a damaged thread on a test port connector. The only
> >> problem was they wanted to change the whole coupler, so it was going
> >> to cost the US equivalent of around $5000. A mate of mine sorted out
> >> the nick on the thread with a needle file!!!
> >>
> >> Dave
> >> _______________________________________________
> >> time-nuts mailing list -- time-nuts at febo.com
> >> To unsubscribe, go to
> >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> >> and follow the instructions there.
> > _______________________________________________
> > time-nuts mailing list -- time-nuts at febo.com
> > To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> > and follow the instructions there.
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>