Dear all
I am an amateur astronomer working in the field of minor planet
occultation.
To arrange a precise reference time I am looking for a 1/100 sec LED
dispaly clock GPS based. (LED is usefull for night vision)
My idea is to use a "ebay" used master clock such as " ThunderBolt GPS
disciplined clock" to drive a timecode display. Particulary I wish to
realize a "PIC" based LED clock to display hour min sec and use the 10
MHz reference to arrange an 1/10 and 1/100 sec disaply. Can anyone
help me in finding schemes or any more flexible idea?
thanks
A small Netbook PC locked to a good local NTP server should be able to
achieve that. Your local NTP server can be locked to GPS (ideally) or to
the Internet.
GPS devices:
http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm
http://www.satsignal.eu/ntp/Sure-GPS.htm
The PC's screen refresh rate would be marginal for 1/00s, though. Perhaps
1/20s is more realistic.
If 1/10s is good enough, there are applications like Emerald Time for your
iPad/iPhone:
http://emeraldsequoia.com/et/index.html
Are you actually trying to timestamp a video recording or light-level
reading? Or time pressing a button?
Cheers,
David
--
SatSignal software - quality software written to your requirements
Web: http://www.satsignal.eu
Email: [email protected]
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