[time-nuts] ARRL FMT results

[Chuck Harris]

Hal Murray wrote:
>> But there's a finite amount of time between when the signal is
>> transmitted and when it is received.  During this time, the earth
>> rotates, thus bringing the receiver either closer to or farther away
>> from the transmitter.  Doesn't that cause a frequency shift?  Isn't
>> this the Sagniac effect?  Small, but measurable as it is a
>> relativistic effect, no? 
> 
> Is that a frequency shift or a phase shift?
> 
> The transmitter is moving at the same speed as the receiver.  That motion 
> changes the transit time between the pair, but if the velocity is constant, 
> that makes a time/phase offset rather than a frequency offset.  Do get a 
> frequency offset you want a Doppler where one end is moving relative to the 
> other.

Yes, but there is an acceleration going on because the direction of motion is
along the arc of a circle...  It's bound to do something... small, but something.

-Chuck Harris