[time-nuts] Alternative to GPS?

[Bob Camp]

Hi

The issue would be just how well you know the delays. Multi path even in a ground wave environment sets some fairly nasty limits on this.

Bob

On Oct 6, 2010, at 12:04 AM, Neville Michie wrote:

> Hi,
> How far could you get passing time around from amateur station to station
> with a two way handshake system that establishes the instantaneous delay
> on the two way path and assumes a delay of half that value? A time relay.
> The stations would need their own short term clocks so they could keep
> their own time between contacts, and somewhere you would need heros
> with primary standards to synch the whole system.
> You would not be able to find a good position, because you would not know the
> propagation mode.
> cheers, Neville Michie
> 
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