> "pin 20
> 10 kHz TTL signal. This signal is also synchronous with pin 19 and has a
long-term accurate to
> 1uHz > (microhertz) or better, if the receiver has a
"fix" on the GPS satellites"
>
I would expect long-term accuracy much better than 1 uHz. AFAIK, the 1 Hz and 10 KHz signals may be used for 1 x 10E-11 or even better adjustments. Jitter in the signal or the receiver should also even out for long-term observations.
It depends on what one calls long-term I guess.
Raymond
