Not sure that I can help much. I have been following the thread and have numbers of units of this vintage and have used a few in projects. Those projects seemed to have funnies after a while. I am starting to have a bad feeling that if I look carefully I will find some of this perhaps going on.
However if I go back into those projects at all I suspect I will shove a ublox in and be done. One was the TrueTime GOES DC468 sat simulator. Thanks for an idea. Regards Paul WB8TSL On Thu, Mar 27, 2014 at 6:56 PM, Jim Lux <jim...@earthlink.net> wrote: > On 3/27/14 8:53 AM, David J Taylor wrote: > >> From: Jim Lux >> [] >> Has anyone seen a similar behavior? I've tried the power cycling, and >> the Garmin "reset" command. I've not done the "clear non-volatile >> memory" which makes it forget the almanac. >> =============================================== >> >> What firmware are those units running? Is it the latest? 3.90? Maybe >> blowing the firmware would reset the position? >> >> > yes, running 3.90.. they're only a year old, and 3.90 came out earlier > than that I think.. > > In any case, I set one of them to the present lat lon, within a few > seconds of arc, and it seems to have acquired, changed the fix a bit, and > then stopped again. > > The other one is resolutely stuck. I'm thinking there's got to be some > simple option that I'm overlooking. It's kind of frustrating, because > there's no NMEA sentence that tells you what the acquisition/search status > is: just which ones it is trying to track and what the status is (unlocked, > no data for all of them). > > > Otherwise, I do have a simple program for monitoring the serial port: >> >> http://www.satsignal.eu/software/net.htm#SerialPortLEDs >> > I'll try that.. > > >> Cheers, >> David >> > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.