[time-nuts] My Racal-Dana 1992
David C. Partridge
david.partridge at perdrix.co.uk
Mon Dec 19 13:59:32 EST 2011
>The first reading after turn-on was about 370 Hz (yes, Hertz) low.
>After 20 minutes the initial warm-up was complete and the reading was
>238 counts (e.g. 0.238 Hz) above 10 MHz - well within the 1e-7 specification.
That's awfully similar to how mine behaves. I'm currently doing my annual checkout, and waiting for it to settle a bit more before tuning out the final few milli-Hertz (currently reading a steady 999.999997 on the 10 second gate.
You could argue that I should leave it in standby all the time, but as I can always use my Thunderbolt to provide the clock if I need the final bits of precision, I don't.
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