[time-nuts] Spirent STR4500 GPS simulator

[Christopher Hoover]

I would check if the instrument contains a  FDTI USB to serial converter
part with a custom VID/PID.   That's a common trick.   That's trivial to
work around, at least on Linux.

-ch
73 de AI6KG


On Wed, Apr 5, 2017 at 1:05 PM, Bob kb8tq <kb8tq at n1k.org> wrote:

> Hi
>
>
>
>
> > On Apr 5, 2017, at 1:36 PM, Magnus Danielson <magnus at rubidium.dyndns.org>
> wrote:
> >
> > Hi Phil,
> >
> > I just wanted to chime in an make a note that the STR4500 seems to have
> USB connection rather than serial. The manual mentions installing a driver.
> I wonder if the USB port is nothing but a glorified serial port.
> > When you hook it up, what does your computer report? You should be able
> to get some info that way. If so, finding the 4100 manual that Bob
> mentioined was not too hard, and banging away on those commands where not
> too complex by the looks of it.
> >
> > Tempted.
> >
> > Cheers,
> > Magnus
>
> That would be yet another layer of problem. The Spirent guys used custom
> USB drivers for their devices. At least that is true for the boxes I have
> seen. They stopped issuing drivers for the 6100 with XP. I have no idea
> when they dropped drivers for the 4500. It’s a pretty good bet that you
> will need one ….
>
> Bob
>
>
> >
> > On 04/05/2017 03:46 PM, paul swed wrote:
> >> Phil
> >> Welcome to the group.
> >> Funny you mention the Spirent. I see many available for semi reasonable
> >> pricing though for Ham/Time-nuts a bit pricey still at $295 for a
> tinkerer.
> >> And they do not come with the disk.
> >> But as was pointed out to me by a fellow time-nut you don't need it. You
> >> can directly control the unit by rs232 through quite simple commands.
> Use a
> >> USB to RS232 converter if you do not have a real port.
> >> You can create batch files of the comands on and on. I had downloaded
> the
> >> manual to look at.
> >> However I will not be buying a unit for quite a long time. Would need
> to be
> >> sub $100 for me at least.
> >> Good luck and have fun.
> >> Regards
> >> Paul
> >> WB8TSL
> >>
> >> On Wed, Apr 5, 2017 at 6:24 AM, Phil Parsons <
> phil at computerhotline.co.uk>
> >> wrote:
> >>
> >>> This is my first post after lurking for quite a while reading & trying
> to
> >>> get to grips with the technology. I just purchased a Spirent STR4500
> GPS
> >>> simulator  along with a pile of other kit. Unfortunately the CD was
> missing
> >>> (no great surprise) & Spirent are not interested in selling me a
> >>> replacement disk. So, can anyone help me with software for this or
> should I
> >>> accept it is  a door stop & get rid? My plan was to use this to get
> >>> consistent signals to test a few GPSDOs I have acquired. Any advice
> >>> gratefully received.
> >>>
> >>> Phil
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