); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In message <[EMAIL PROTECTED]>, "Murra y Greenman" writes:
>The limitation on most GPSDOs is as Bruce says, lack of DAC resolution. But for the timeconstants we are dealing with here, the DAC is 1000 times too fast, so oversampling works great. I did that with Dave Mill's Loran-C receiver, I accumulated the rounding error for the DAC output (as in floyd-steinberg dithering) and update the dac on every GRI (15 times a second). RC lowpass filter filtered the high frequency (ie: 15 Hz) related components out. The effective increase in resolution was about 5-6 bits. -- 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.
