Hi Magnus, Magnus Danielson wrote: I have one OSA 5515, at it fails to lock up. The 8655S OCXO heats up nicely from 5,000166 MHz, with a bit of an undershot and stabilizes at about 4,999999140 MHz. That for sure looks like the tell-tale of SC-cut crystal in that oven. I've been able to persuade it up to 4,999999225 Hz as closest using the oscillator trimmer, but that's it.
Sorry to correct you: This warm-up behavior indicates that an AT-cut crystal is used. For an SC-cut the frequency during warm-up will rise. Unfortunately I cannot help you with the described problem, as I do not have any details about that device. Best regards Bernd _______________________________________________ time-nuts mailing list -- [email protected] -- To unsubscribe send an email to [email protected] To unsubscribe, go to and follow the instructions there.
