Hi Clayton:
Check out WWVB.
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
Clayton G wrote:
Hi Nuts,
I have been building an LF transmitter, and have provision for a 1PPS input for calibration purposes. However I would
like to be able to provide more time information than just the second pulses. It occurs to me that full time info
could be encoded onto a 1PPS stream by changing the width of the pulse itself. The rising edge can be left unchanged
to indicate the precise second, but the trailing edge can vary between (say) 100mSec and 300mSec, and this could
encode 60 bits (with suitable idle pulses etc for synchronisation) in each minute. Using this I could encode full date
and time into the 1PPS stream.
My question is, does such a standard already exist, or has anyone developed
something along this line?
If no, I plan to implement something suitable myself, and will publish it
should it be useful to others.
Regards
Clayton
(VK1TKA)
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