[time-nuts] Simulation

J. Forster jfor at quik.com
Sat Aug 14 17:10:33 UTC 2010


I think it was a one-off failure:

http://www.gpsworld.com/gnss-system/signal-processing/the-hunt-rfi-776

-John

===========


>
>> One side-effect is that you run into possibilities of oscillation.
>> This have happend and was the cause of a GPS outage in a US Harbour a
>> few years back. What was a wise design became an enemy due to a subtle
>> change in part. Don't recall if the part was replaced by an
>> "equivalent" or same part-number, but the new version didn't work as
>> expected during all conditions...
>>
>
> Yes, one of the most probable problems. I've read the story about the
> GPS outage in that harbour, as I remember it was caused by a failure in
> one TV antenna amplifier on a boat - but I don't remember if it was an
> isolated case due to a failure (or to a bad repair replacing the part
> with a similar one), or was a more 'endemic' problem :)
>
> Regards,
>
> Javier
>
> --
> ------------------------------------------------------------------------
> Javier Herrero                            EMAIL: jherrero at hvsistemas.com
> HV Sistemas S.L.                          PHONE:         +34 949 336 806
> Los Charcones, 17                         FAX:           +34 949 336 792
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>
>
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