javier.serrano.par...@gmail.com said:
> There are some exceptions to this, with PLCs and other pieces of
> hardware getting sync from NTP. We've had problems in our Post Mortem
> system in the past, with a PLC not receiving NTP traffic because of
> router misconfiguration and this resulting in inc
I had a GPS receiver and a pair of small 315 MHz transmitter and receiver
modules that I wanted to fly in a rocket. I knew the data link was good to
around 1/2 mile at 2400 bits/sec.
I wired up the units, installed them in the rocket payload section, took it
outside, switched it on, and
If anybody is interested in jamming GPS, here is a great story. It's jamming
rather than spoofing.
The Hunt for RFI
Unjamming a Coast Harbor
James R. Clynch, Andrew A. Parker, George Badger,
Wilbur R. Vincent, Paul McGill, Richard W. Adler
GPS World, Jan 1, 2003
http://www.gpsworld.com/gps/s
>
> Spoofing a GPS receiver should not be too hard. I would record the GPS
> spectrum off the air, then play it back, delayed by some sufficient time to
> confuse
> whatever you are trying to confuse. By playing back actual signals, the GPS
> receiver would
> hear a self consistent set of sign
Hi, from a timing perspective we treat CERN as a factory of particle beams,
so probably our ideas on timing systems apply to industrial control systems
as well. We have a single GPSDO with Rubidium for holdover and our Central
Timing Generator only looks at it at power up to get its first PPS and U
