[time-nuts] BC637PCI and OCXO
GandalfG8 at aol.com
GandalfG8 at aol.com
Fri Feb 7 08:38:45 UTC 2014
I played with this around five or six years ago but unfortunately my notes
from that time are likely to be buried somewhere still waiting to be
scanned or indexed.
All the necessary information though is in the user and SDK manuals,
connections for the 10MHz external input and EFC output are on the 15 way I/O
connector and there's even demo software which I'm pretty sure was all I used
to make the necessary adjustments.
One manual, pre Symmetricom, even has what looks to be a full set of
schematics.
I've just run the software again to check but it won't do much if it can't
find the card so would need to fire up another PC with a spare slot to
check further.
I wasn't really happy at the time with my attempts to condition an
external Vectron OCXO, it was certainly better than using the internal oscillator
but there were some odd jumps and drifts using either which suggested these
might be artifacts of the board itself rather than the Vectron OCXO.
I've since acquired another BC637PCI, and want to try both again with
other oscillators, but that's quite some way down a very long to do list, now
reminded though I might take a quick look later:-)
In the meantime, I have got copies of manuals and software etc and will
get those zipped up today and make them available for download.
Regards
Nigel
GM8PZR
In a message dated 07/02/2014 03:36:46 GMT Standard Time, time at patoka.org
writes:
Hello,
Does anybody seen any links to the information how to implement external
OCXO to Symmetricom PCI TFP BC635/BC637 ?
--
WBW,
V.P.
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