Brendan Minish said the following on 12/30/2006 07:18 PM: > I have from the photo on your website established that the area around > r61/r62 loos the same on both boards and these 2 resistors are indeed > commoned at the side nearest the edge of the board. I'll give it a go > here and see what happens. > What ground reference are you using with this? com port pin 5 ground ok?
I use ground from the com port and it works OK. > I presume a garmin (gps27?) with a nice long +5v pulse will do for test > purposes? The one requirement of the PPS signal is that it has to be positive going on the leading edge, and the duration must be at least 1/Hz seconds long -- so if you have HZ=100, you need at least 10ms pulse width. Most GPS PPS signals are plenty long enough, but there are some that are much shorter -- that's where the FatPPS comes in. > Any idea when TAPR are going to release the refclock and the fatPPS > boards The Clock-Block is shipping now (they just arrived at the TAPR office and the initial orders have been sent out). The first batch of FatPPS is also in production, and I expect we'll start advertising and shipping those in two or three weeks. 73, John _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
