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$B$&$A$+$o$G$9!#(B

$B$*A{$,$;$7$F$$$k(BGPS$B%f%K%C%H!V%8%e%T%?!<!W(B($B%f%K%C%HK\BN$O(BGSU-25B)
$B$G$9$,(B 1PPS$B=PNO$r;H$C$F(B ntp $B$N4p=`$K;H$($^$7$?$N$GJs9p$7$^$9!#(B

OS$B$O(B 4.0-Current$B!":#F0$$$F$$$k$N$O$5$C$-(B make world $B$7$?$P$+$j$N(B
$B%[%d%[%d$N(BOS$B$G$9!#(Bports-current$B$N(Bntp$B$r;H$C$F$$$^$9!#(B
---
 FreeBSD 4.0-CURRENT #0: Sat Aug  7 22:56:07 JST 1999
     yoshiaki@singer.tertio.atoll:/usr/src/sys/compile/KSTSING
---

$B%$%s%?!<%U%'!<%9$K$O(B MAX233$B$r;H$C$F(B2$B%A%c%M%kJ,$"$k(BTTL->RS232$B%3%s%P!<%H(B
$B2sO)$r;H$C$F(B1PPS$B$O(BDCD$BC<;R$KF~$l$F$$$^$9!#(B
$B:G=i$O<j85$K$"$C$?%/%m%9%1!<%V%k$r;H$C$F$$$^$7$?$,$3$l$,4V0c$$$N85$G(B
$B%1!<%V%k$K$h$C$F(BDCD$B$N@\B3$,0[$J$C$F$$$?$j!"A4$/@\B3$5$l$F$$$J$+$C$?$j(B
$B$7$F$$$k$h$&$G$9!#$3$N$?$a$K(B1PPS$B$N?.9f$,F~$i$:(B2$BF|$[$IG:$_$^$7$?!#(B

$B8=:_$O%9%H%l!<%H%1!<%V%k$rGc$C$F$-$FG[@~$rJQ99$7$FMxMQ$7$F$$$^$9!#(B
$B=i4|2=J8;zNs$O$H$j$"$($:$N$H$3$m$O2<@n$5$s$N%Q%C%A$=$N$^$^$G!"(B
$B@_Dj$O(BKermit$B$r;H$C$F<jF0$G9T$J$C$F$$$^$9!#$J$<$+(Bntpd$B$N5/F0;~$K(B
GPS$B%f%K%C%H$r@\B3$7$?$^$^$G9T$J$&$H8G$^$C$F$7$^$$$^$9!#(B
$B$I$&$$$&>uBV$K$J$k$+%m%0$K;D$C$F$$$J$$$N$GD4$Y$k$K$O%+!<%M%k%G%P%C%,$r(B
$B;H$&I,MW$,$"$k$+$bCN$l$^$;$s!#(B

1PPS$B$rF~$l$J$1$l$P(Bntpd$B$OLdBj$J$/5/F0$7!"$=$N8e(BGPS$B%f%K%C%H$r@\B3$9$l$P(B
NTP$B%5!<%P$H$7$FF0$$$F$/$l$^$9!#(B

===
 ntpdc> kern
 pll offset:           -1.08e-07 s
 pll frequency:        -99.504 ppm
 maximum error:        0.028174 s
 estimated error:      0.000667 s
 status:               2107  pll ppsfreq ppstime ppssignal nano
 pll time constant:    6
 precision:            1e-09 s
 frequency tolerance:  496 ppm
 pps frequency:        -99.504 ppm
 pps stability:        0.158 ppm
 pps jitter:           7.8e-07 s
 calibration interval: 256 s
 calibration cycles:   34
 jitter exceeded:      3
 stability exceeded:   0
 calibration errors:   1
===
/var/loopstats $B$NFbMF$O(B
===
51397 53392.684 -0.000000014 -99.461990 0.001828072 0.012473 6
51397 53457.678 -0.000000442 -99.485550 0.001583157 0.015983 6
51397 53521.673 -0.000000795 -99.485550 0.001371054 0.013841 6
51397 53585.677 -0.000000571 -99.485550 0.001187368 0.011987 6
51397 53649.682 -0.000001168 -99.485550 0.001028291 0.010381 6
51397 53715.677 -0.000000278 -99.504028 0.000890526 0.012891 6
51397 53780.681 -0.000000221 -99.504028 0.000771218 0.011164 6
51397 53844.676 -0.000000086 -99.504028 0.000667895 0.009669 6
51397 53909.680 -0.000000186 -99.504028 0.000578414 0.008373 6
51397 53974.675 -0.000000068 -99.517090 0.000500921 0.009759 6
51397 54037.679 -0.000000168 -99.517090 0.000433811 0.008451 6
51397 54100.684 -0.000000119 -99.517090 0.000375691 0.007319 6
==
$B$H$$$C$?$H$3$m$G$9!#(B
----
  yoshiaki@kt.rim.or.jp
 ($B$&(B)  
