Continuation from cog31s GPS issue.
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 5991 |
In other words: build a software PLL. That is also how calibration of Rubidium frequency references works. The average GPS signal over 24 hours and adjust the Rubidium tuning according. Then you get within 1ppm accuracy. Volhout P.S. 1 mSec accurate relay operation may need compensation, since mechanical relays take 3-20mSec to switch the contact, only reed relays are faster. You can do this by measuring the exact opening time and closing time of the contact (in the actual circuit) and compensating for it. PicomiteVGA PETSCII ROBOTS |
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