[time-nuts] Spirent STR4500 GPS simulator

Magnus Danielson magnus at rubidium.dyndns.org
Wed Apr 5 13:36:00 EDT 2017

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.



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
> 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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