Hal, what stopped me from going down the BBB path was the reports of RF noise, they supposedly create a lot of noise. Not acceptable in an HF environment. Google around about the RF noise with the BBB. mg NG7M
On Sat, Jun 13, 2015 at 12:02 AM, Hal Murray <hmur...@megapathdsl.net> wrote: > > eds_equipm...@verizon.net said: > > Is it possible to modify the kernel so the USB is polled more often, and > > would that significantly reduce the jitter? > > Modifying the kernel may not be enough if the timing parameters are in the > microcode for the USB device. > > Whether any improvement is significant probably depends upon your goals. > It's unlikely to become a great NTP server. > > If I wanted a good low power NTP server, I'd probably start with a > BeagleBone > Black. I haven't seen a low cost no-assembly-required GPS board for the > BBB > (There is at least one GPS board for the BBB, but it includes a cell phone > modem which doubles the cost.) I'd probably try the GPS breakout board > from > SparkFun. It should take 5 wires: power, ground, trans, recv, and PPS. > (and > then the appropriate software hacking) > > -- > These are my opinions. I hate spam. > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- M. George _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.