[ntp:questions] Tobit LAN!Time DCF77 receiver not working
David Lord
snews at lordynet.org
Thu Dec 24 00:39:15 UTC 2009
David Lord wrote:
......
> I can't remember if I tried radioclkd before using radioclkd2.
>
> With radioclkd2 it needs 2 - 3 minutes before getting into
> sync, there being status displayed at each minute. I'm not
> sure if WWVB mode works but you may see failure to decode
> that before it finds DCF.
These are results from April 2009 using Conrad module:
Parse driver used mode 16 but my notes indicate mode 5 can be
used if power isn't being taken from serial port although it
looks as if you don't have any signal on RxD anyway in which
case parse driver isn't suitable.
I'm around 1000km from Frankfurt.
DCF77 + serial tty00:
Driver(s)
(11) 8 me6000g(C3-600), NetBSD 5.0_RC4, Conrad DCF77 module
(12) 8 me6000g(C3-600), NetBSD 5.0.0_PPS, Conrad DCF77 module
"server 127.127.8.0 mode 133 # PARSE Conrad DCF77+PPS"
(13) 28 me6000g(C3-600), NetBSD 5.0.0_PPS, Conrad DCF77 module,
"radioclkd2 -s timepps tty00:-dcd"
Source Polls % offset jitter % offset jitter % offset jitter reach
(ms) (ms) (ms) (ms) (ms) (ms) !=377
(11) 110 50 1.746 0.921 95 5.113 bad 99.5 12.07 bad 7
(12) 160 50 1.911 0.854 95 9.162 5.186 99.5 87.49 466.4 12
(13) 152 50 0.825 0.433 95 3.789 2.648 99.5 7.095 6.047 14
David
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