[LinuxPPS] do we need hardpps <- yes!!

[Remco dB]

On Saturday 06 February 2010 14:27:51 Udo van den Heuvel wrote:

> My Garmin GPS18LVC only guarantees the rising edge to be within +/- 1
> microsecond of the GPS second start.
> Unfortunately, pulse length is set in miliseconds, with 20 ms
> increments, starting at 20 ms unto 980 ms.
> I was thinking of using the falling edge trick for serial GPS as well.
> But this doesn't look so feasible now with this GPS.
> 

For more precision concerning the second epochs, a Motorola
Oncore GPS-receiver could be used. 
At this time of writing a Chinese supplier sells UT+'s for U$ 5.00 (!)
excl posting and shipping on Ebay. 

Remco