Are you sure the single chip receiver is not itself an SDR? Maybe using a little 8-bit uP inside? I don't know.
In any case the jitter on the SDR depends on the sample rate clock. If you use a decent audio interface the clocks are not bad. A little 4-pin crystal oscillator controls the sampling. Compared to the propagation delay the quality of that crystal is a not a big deal. On Fri, Oct 28, 2016 at 10:36 PM, Nick Sayer via time-nuts < [email protected]> wrote: > That single-chip version is going to have a *LOT* less (and less variable) > latency than an SDR. > > > On Oct 27, 2016, at 12:20 AM, Poul-Henning Kamp <[email protected]> > wrote: > > > > -------- > > In message <[email protected]>, Nick Sayer > via time- > > nuts writes: > > > >> If you’re in North America, a CHU receiver is a lot easier to make > >> than WWV/WWVH. The CHU timecode is just BEL 103 AFSK at 300 baud - > >> it was a one-chip solution 20 years ago when I made one in college. > > > > We have CPUs and sounds-cards these days... > > > > Also: The KiwiSDR is nearly perfect hardware, no matter which VLF/HF > > station you want: You can track GPS and four (possibly 8) VLF/HF > > stations at the same time. > > > > -- > > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > > [email protected] | TCP/IP since RFC 956 > > FreeBSD committer | BSD since 4.3-tahoe > > Never attribute to malice what can adequately be explained by > incompetence. > > _______________________________________________ > 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. > -- Chris Albertson Redondo Beach, California _______________________________________________ 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.
