> I know it has been a while since the boards were sent out, but I > finally placed an order with Mouser to populate the two boards I > bought. I already have the "unobtainium" chips and can program the > PICs, so no problems there. > > The question is, how do I use the PICTIC II after I've assembled it? I > have read the information on the KO4BB WIKI and downloaded the files, > but what I really need is an explanation of how to adjust the circuit > after assembly and then a simple example of its use. Comparing a > FE-5680A with a HP Z3801A would be a good example, since I have those > :-) > > I've lurked on this list for quite some time, but I'm still a newbie, > compared to most here. > > Joe Gray > W5JG
Let me see if I can set up a demo/example use case later on today. I was getting good results in 1pps-triggered 10 MHz measurements a couple of years ago, but my software platform was then rewritten for other reasons and I haven't gotten the PICTIC running with the new code yet. Unfortunately it won't have the stability to measure a rubidium standard very effectively, at least at timescales shorter than a few hours. The PICTIC II's residual ADEV crosses into the E-13s at around 1000 seconds, while a small Rb clock in good working order will get there at about t=80 seconds. If sufficiently ambitious, you could fix that problem with W. R. Riley's "Small DMTD" system, which used a PICTIC as the back end (http://www.wriley.com/A%20Small%20DMTD%20System.pdf ). -- john, KE5FX _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
