Medical devices: A ticking time-bomb

Re:Medical devices: A ticking time-bomb by keeperofdakeys on Sunday May 27, 2012 @08:03AM (#4029945)

Most mobile phones usually get their time from the phone towers. Of course, this relies on them having the right time.

Interestingly the most effective way to get syncronised clocks is GPS.

[ Parent | on HN ]

Re:Medical devices: A ticking time-bomb by anrope on Sunday May 27, 2012 @11:26AM (#4030243)

I'm pretty sure cell towers all use gps for time synchronization, which is necessary for the network to work.

I always trust my cell phone time.

[ Parent | on HN ]

Re:Medical devices: A ticking time-bomb by Dylan16807 on Sunday May 27, 2012 @03:24PM (#4030785)

Cell towers need synchronized clocks? For what?

[ Parent | on HN ]

Re:Medical devices: A ticking time-bomb by tonyarkles on Sunday May 27, 2012 @03:53PM (#4030865)

I'm pretty certain that CDMA towers, at least, had exceptionally accurate clocks for something related to the technology (synchronizing the chip code maybe? it's a guess).

Not sure if this applies to GSM as well, but CDMA used to be an acceptable clock source for a Statum 0 clock source.

[ Parent | on HN ]