There are a few issues with the speed of light.

Contraction, time, whatever.

One-Way-Frame.

The big issue with the one-way-frame is that one can assume an X and Y components of the speed of light:

C+x/C-x & C+y/C-y

For now, let's just consider the X component.

The average round-trip speed of light remains as C, and would be calculated as the average speed of light by: ((C+x)+(C-x))/2

So.. the neat thing about geosynchronous satellites is that everything reverses every 12 hours. Considering two satellites nearly across from Earth, but off enough to send inter-satellite communications.

Consider separate clocks:

T

_{A0} & T

_{B0}Now, consider the time from satellite A to B at time T0 to be:

T

_{AB0} = T

_{B0}-T

_{A0}+C+X

_{0}And the time from satellite B to A to be:

T

_{BA0}=T

_{A0}-T

_{B0}+C-X

_{0}With the roundtrip time being:

T

_{AB0} + T

_{BA0} = ((T

_{B0}-T

_{A0}+C+X

_{0}) + (T

_{A0}-T

_{B0}+C-X

_{0})) = 2C

Twelve hours later, the satellites have completed a half rotation around the planet (T

_{A12} & T

_{B12}) where T

_{A12} = T

_{A0} + 12 hrs and T

_{B12} = T

_{B0}+12 hrs

T

_{AB12}=T

_{B12}-T

_{A12}+C+X

_{12}And the time from satellite B to A to be:

T

_{BA12}=T

_{A12}-T

_{B12}+C-X

_{12}If you substitute in the equations above:

T

_{A12} = T

_{A0} + 12 hrs and T

_{B12} = T

_{B0}+12 hrs

The 12 hrs cancels out, and you get:

T

_{AB12}=T

_{B0}-T

_{A0}+C+X

_{12}And the time from satellite B to A to be:

T

_{BA12}=T

_{A0}-T

_{B0}+C-X

_{12}Now...

If you set:

X

_{12} = - X

_{0} (reversed the direction of the travel):

One gets:

T

_{AB12}=T

_{B0}-T

_{A0}+C-X

_{0}And the time from satellite B to A to be:

T

_{BA12}=T

_{A0}-T

_{B0}+C+X

_{0}Now, you can add the equations together.

Now, consider the time from satellite A to B at time T0 to be:

T

_{AB0} = T

_{B0}-T

_{A0}+C+X

_{0}plus

The time from satellite B to A, 12 hrs later.

T

_{BA12}=T

_{A0}-T

_{B0}+C+X

_{0}**T**_{AB0} + T_{BA12} = 2C+2XAnd.

And the time from satellite B to A to be:

T

_{BA0}=T

_{A0}-T

_{B0}+C-X

_{0}plus (T

_{AB12}=T

_{B0}-T

_{A0}+C-X

_{0})

**T**_{BA0} + T_{AB12} = 2C-2XHmmm I have to be getting close to a conclusion somewhere.

And, indeed I am (I think). Considering my instantaneous round trip times calculated above:

T

_{AB0}+T

_{BA0} = 2C = T

_{AB12} + T

_{BA12}So, let me subtract the instantaneous times from the 12 hr times, and I get:

T

_{AB0} + T

_{BA12} = 2C+2X

minus (T

_{AB0}+T

_{BA0} = 2C)

**T**_{BA12 }- T_{BA0} = 2Xand

T

_{BA0} + T

_{AB12} = 2C-2X

minus (T

_{AB0} + T

_{BA0} = 2C)

**T**_{AB12} - T_{AB0} = -2XSo..

With that page full of equations

And my vain attempt to remember elementary algebra.

**I conclude that any difference in times from Satellites A to B, and that seen from A to B, 12 hrs later is twice the difference due to the one-way difference in time.**Now, I've written all this with

**TIMES**, including simplifying the time for the two-way transit of light, C.

However, one could use one of many ways to convert it to either a portion of the speed of light (C/X), or distances and an actual velocity.

I've also only calculated the X component.

The Y component would be calculated 6 hours later.

Or... more likely, one would do continuous calculations, to calculate the maximum and minimums for these values, and thus discern a speed and direction (with respect to Earth's axis plane) of the movement through space/aether.

Radio waves and light waves are essentially the same, and should be able to be used interchangeably. The most accurate clocks and timing systems would be useful, but one could probably use a fairly crude system, at least for preliminary calculations.

With a pair of polar satellites in the same orbit, one could do these calculations in a 3-D reference plane, especially since the polar orbits precess, one could build a nice 3-D model of one-way speed of light frame slippage.

Solar orbiting satellites with about a 365 day orbit could also be used with either solar satellite to Earth calculations, or between a pair of satellites.

Now, if all of the one-way times came up equal, that would certainly be an important negative result, but one has to do the test.