[time-nuts] Cable length calibration

[jimlux]

On 6/30/16 5:52 PM, Tim Shoppa wrote:
> We are all time nuts, so there's an obvious answer: What you do, is raise
> the GPS up to a height the same as the cable length. You then drop it,
> measure the time until it hits the ground, and use d = 0.5 a * t * t to
> calculate d. Then you correct for the velocity factor.
>

or rig it as a pendulum, and correct for the gravitational pull of the 
moon and sun<grin>