[time-nuts] Re: Oscilloquartz OSA 5515

[Bernd Neubig]

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