On 1/11/15 7:30 AM, Martin A Flynn wrote:
I am looking for a GMT/GET mission time clock that has the following characteristics:* Reads T minus prior to launch or deployment, T plus after. * Second display for GMT. * Simulating it on a PC display would be OK, would prefer an LED/LCD version for wall mounting There is a example of what I am looking for in the background of this photo: https://www.hq.nasa.gov/alsj/a16/A16_116_13_15.jpg . We have NTP, IRIG-B, and a 1 PPS source to work with. Any suggestions on a cost-effective way to accomplish this?
What does "cost effective" mean in this context? Do you have a max cost? Is your time cheap and cash dear, so you're willing to build stuff, or do you just want to buy something off the shelf so you can get it going.
How big does it have to be? that's probably going to be the big design driver: these days, large flat panel TV/monitor driven by a small computer is probably the easiest way.
If you want to go more "traditional", then there are those "flipping disk" or flipping page displays, there have been some enormous 7-segment displays (not counting the one with 4x8 foot sheets of plywood and a team of artists). There's also "rotating drums" for the digits.
Cheers Martin Flynn _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
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