> My opinion: For 1ppm you will need any reasonable GPS receiver that > has a 1PPS output. You can find them that are really good and put the
Chris, I agree investing in a cheap GPS receiver is a good step for anyone playing with time & frequency. I would recommend the same. But I'd like to point out that 1 ppm is an easy goal and you don't need GPS for that. For example, a 10811A OCXO has a frequency drift spec of 5e-10/day and 1e-7/year. We know that after continuous use most 10811 are far better than this. Even the manual mentions "typical 1e-8 / year after 1 year". So that means if you buy a 10811, it should stay within 1 ppm -- for your rest of your life. No GPS. No antenna. No worries. /tvb _______________________________________________ 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.
