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...
-Bob On Thu, Jun 25, 2009 at 7:21 PM, J. Forster <[email protected]> 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. > > FWIW, > -John > > ========== > > > 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 > to > > have gone out of business, but I'm hopeful that somebody just bought > them, > > changed their name, and has a hidden supply of manuals somewhere. > > > > Thanks, > > Bob, N3XKB > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
