It is surprising to see both * and o in the ntpq billboard compared
to earlier linux ntp versions. Also seeing PPSTIME PPSFREQ but not
PPSSIGNAL is noted.
fallkiss linux # ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
oPPS(0) .PPS. 0 l 11 16 377 0.000 -0.002 0.001
*smidge.wraith.s .GPS. 1 u 9 16 377 0.233 0.021 0.005
+thrall.wraith.s 192.58.220.5 2 u 8 16 377 0.155 0.012 0.011
+wraith.wraith.s .GPS. 1 u 8 16 377 0.307 0.013 0.017
fallkiss linux # ntptime
ntp_gettime() returns code 0 (OK)
time cfb81dcb.e8e192d8 Mon, Jun 7 2010 18:39:23.909, (.909692940),
maximum error 2235 us, estimated error 0 us
ntp_adjtime() returns code 0 (OK)
modes 0x0 (),
offset -1.138 us, frequency 48.882 ppm, interval 1 s,
maximum error 2235 us, estimated error 0 us,
status 0x2007 (PLL,PPSFREQ,PPSTIME,NANO),
time constant 4, precision 0.001 us, tolerance 500 ppm,