> IIRC the FE5680 sell now for 200USD. Some heatsink and temperature control > come maybe at 50-100USD. Some equipment to measure where the PPS lies > relative to UTC and a powersupply that can get you 15V from mains and > a battery (to get the Rb where the computer is) would also be necessary. >
I suspect the cost of the Rb from eBay is "nothing" compared to the equipment yu will need to verify proper operation of the finished system. You of course would need to do LOTS of detailed testing (many test runs at different room temperatures) before you took the system down into your coal mine, submarine or where ever. You'd need a way to compare your system to GPS and unless you have a year to test you need a very sensitive test so you can detect drift in only a few hours, not months. Like I said your "test rig" will cost more than the device under test. This will be more and more the case the longer your hold-over requirement. Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
