[time-nuts] Datachron, Inc.
rdarlington at gmail.com
Thu Jun 25 21:24:30 EDT 2009
I'm 99% sure. What I see on the scope looks like what I see in the spec.
AM modulated signal, but I didn't actually verify the timings yet. I
figured that even if I was off a bit, that *something* should change on the
display. Maybe this is a poor assumption. I'm off to find a jumper...
On Thu, Jun 25, 2009 at 7:21 PM, J. Forster <jfor at quik.com> wrote:
> Are you sure you are really feeding it IRIG-B? You might try looking at
> your TC signal with a 'scope and seeing if it meets the IRIG spec.
> Such a test would bisect the problem.
> > Hi guys,
> > What happened to Datachron? I'm trying to dig up a manual for an IRIG-B
> > display, Datachron model 3700-205 that I just picked up on eBay:
> > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290323873289
> > It came in today and powers up, and looks just like it does in the
> > pictures. Doesn't seem to do anything more than that, either! I'm
> > trying
> > to drive it using NMEATime software. It seems that no matter what
> > amplitude
> > I'm using, the display does nothing. I reseated all IC chips, wiggled
> > connectors, the standard sort of thing. No change. Datachron appears
> > have gone out of business, but I'm hopeful that somebody just bought
> > changed their name, and has a hidden supply of manuals somewhere.
> > Thanks,
> > Bob, N3XKB
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