[ntp:questions] distance to dcf77 transmitter: how to set the fudge?
Folkert van Heusden
folkert at vanheusden.com
Wed Jan 26 16:37:03 UTC 2005
Am I right that when I want to tell ntpd that it has to take care of the
distance to the dcf77 transmitter that I have to do that like this?
# DCF77 receiver
# "Der DCF77 Sender steht in Mainflingen (50 0 Nord, 09 00 Ost), etwa 25 km
sdstlich von Frankfurt/Main."
# http://www.maporama.com/
# Mainflingen: 50 1' 54" , 9 1' 33" 50.0318 , 9.026
# Gouda/2804 RR: 52 1' 37" , 4 42' 15" 52.0272 , 4.7044
# http://www.fcc.gov/mb/audio/bickel/distance.html
# -> 374.766km
# speed of light: 299 782.458 km/s
# delay: 1.25012652ms
server 127.127.8.0 prefer mode 14
fudge 127.127.8.0 time1 0.00125012652
I ask this question as suddenly the offset for my DCF receiver sky-rockets:
remote refid st t when poll reach delay offset
jitter
==============================================================================
GENERIC(0) .DCFa. 0 l 77 64 16 0.000 -246.13 11.484 <---
keetweej.intran 130.149.17.8 2 u 71 64 66 0.063 0.488 23.017
+auth1.xs4all.nl 193.79.237.14 2 u 139 256 17 8.006 -19.688 0.428
*ntp1.NL.net .GPS. 1 u 135 256 17 18.812 -17.445 0.527
+ntp3-rz.rrze.un .DCFp. 1 u 135 256 17 26.414 -16.742 0.266
+sombrero.cs.tu- .PPS. 1 u 135 256 17 25.625 -16.648 1.997
time.windows.co 192.43.244.18 2 u 194 256 7 178.229 -23.918 8.905
time1.apple.com 17.254.0.49 2 u 130 256 17 165.664 -19.072 0.834
clock3.redhat.c .CDMA. 1 u 132 256 17 188.132 -16.833 0.369
Folkert van Heusden
Op zoek naar een IT of Finance baan? Mail me voor de mogelijkheden!
+------------------------------------------------------------------+
|UNIX admin? Then give MultiTail (http://vanheusden.com/multitail/)|
|a try, it brings monitoring logfiles to a different level! See |
|http://vanheusden.com/multitail/features.html for a feature list. |
+------------------------------------------= www.unixsoftware.nl =-+
Phone: +31-6-41278122, PGP-key: 1F28D8AE
More information about the questions
mailing list