[ntp:questions] Re: Which PBS station should I use for the time signal?

Danny Mayer mayer at ntp.isc.org
Wed Nov 16 13:38:10 UTC 2005

Jack Ak wrote:
> Use a PBS station that broadcasts the time signals.  Not all PBS stations
> do that.  It makes little difference which one you choose.  Broadcast
> signals travel at the speed of light even when delivered by cable.

Not exactly. What you are talking about is the speed of light in a
vacuum. That's not the same as the speed of light in a medium. There IS
a big difference. It's much slower in the cable.  This isn't, though,
the place to discuss the physics of this.


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