Good day,
During recent repair efforts on my Symmetricom TS2100, I noticed the
main PC board has silkscreening, and hole patterns, to cover different
types of crystal oscillator.
Might it be possible to upgrade from the standard unit (a DIP-14 form
factor clock oscillator) to, perhaps, an OCXO?
Anyone have a 2100 they can share pictures of? Or, perhaps, one which
has been upgraded?
Just wondering...
Thanks.
Bruce Lane, ARS KC7GR
http://www.bluefeathertech.com
kyrrin (at) bluefeathertech dot com
"Quando Omni Flunkus Moritati" (Red Green)
Bruce,
Check out the archives around 3/2011 and 6/2015 for some discussions
about upgrading the TS2100 to an OCXO. Gerhard Wittreich's post on
6/6/2015 describes the process. Greg Dowd from Symmetricom added quite
a good bit of info to the discussion in 2011 so be sure to check out
those messages too. The intended OCXO is an MTI 240-0530-D (see
attached pic) but is a custom part. It was not available when I
upgraded my unit so I used a different OCXO that I put on a small
perfboard and wired in. There were some available on eBay last year but
now they're gone. The EFC range is 0-6V but I believe the onboard DAC
only drives it from 0.5 to 4.5V. The OCXO datasheet is available on
Manuals section of the KO4BB site.
-Bob
On 12/22/2016 05:19 PM, Bruce Lane wrote:
Good day,
During recent repair efforts on my Symmetricom TS2100, I noticed the
main PC board has silkscreening, and hole patterns, to cover different
types of crystal oscillator.
Might it be possible to upgrade from the standard unit (a DIP-14 form
factor clock oscillator) to, perhaps, an OCXO?
Anyone have a 2100 they can share pictures of? Or, perhaps, one which
has been upgraded?
Just wondering...
Thanks.
Bruce,
Based on information previously posted here I was able to do this earlier this year. I wrote it up:
https://aerographic.tumblr.com/post/139872571444/datumsymmetricom-ts2100-irig-ocxo-heol-n024-gps
You're looking for a low profile MTI 240 OCXO. That would be easiest, but many others will work.
Let me know if you have any questions.
Cheers,
--msa