[time-nuts] LadyHeather Cabledelay - positive or negative ?

Azelio Boriani azelio.boriani at screen.it
Thu May 3 16:56:55 UTC 2012


Most GPS receivers have cable delay and user delay but, in the end, the
delay is one action and the receiver can anticipate/posticipate the PPS
where you want it to be. The cable delay is positive but the receiver has
to put the PPS out early to account for the cable.

On Thu, May 3, 2012 at 4:34 PM, cfo <xnews3 at luna.dyndns.dk> wrote:

> Hi T-Nuts
>
> I have a question about the Cabledelay in LH
>
> I have a tbolt in my home (approx 25m cable , and 100nS delay)  and one
> in my summerhouse (approx 15m cable , 66nS delay).
>
> I just discovered that i have specified a negative cabledelay of -66nS in
> my summerhouse , and i think it's wrong.
>
> Shouldn't cabledelay always be positive ?
>
> TIA
> CFO
>
>
>
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