On 5 Apr 2015 02:26, "Charles Steinmetz" <csteinm...@yandex.com> wrote: > One expects a safety factor between the minimum spec and typical operation. I'd be concerned if a 58503 was consistently predicting >2uS (to me, >2uS means "I may still meet spec, but I'm not as stable as I should be"). > > Best regards, > > Charles
I gathered from Said and others these oscillators can take a long time to reach their best stability - up to a year. How good they are then is just luck. Given mine was e-waste at some point in Hong Kong, and has certainly been in water, the oscillator has probably had a hard time. I have now had two other people email me to say that the alarm light lit on their 58503A recently. One person emailed me 2 hours ago and said it happened 2-4 days ago. Mine was about 5 days ago. And another person said "recently", but I don't know how recent that is. I am beginning to wonder if the impending leapsecond could be the cause of the alarm. My antenna location could be improved, but so can any antenna installation. I could push it up so it is a couple of metres clear of the garage - currently it is mounted to the side of the garage, about 500 mm above the apex. If I mounted the mast on the garage, rather than a fence post, it would be more in the clear of the garage. I can't clear my house or a neighbours house, but they are both a reasonable distance away. Dave _______________________________________________ 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.
