I don't have one, but I see some Time-nuts posts in 2017 about this board and communications with it, such as: https://www.febo.com/pipermail/time-nuts/2017-October/107096.html
https://www.febo.com/pipermail/time-nuts/2017-May/105124.html I also found: https://www.eevblog.com/forum/projects/gpsdo-loss-of-satellitesfix-troubleshooting/https://github.com/pigrew/trueposctrl https://www.youtube.com/watch?v=c35RCqOOulY -- Bill Byrom N5BB On Sun, Mar 18, 2018, at 9:59 AM, John Green wrote: > There is a small, about 3.5" by 4.5", GPSDO board being offered > by several> sellers on eBay. I bought one from what looks to be the only US > based> source. It is identified as True Position, Inc., and had a small > CTS OCXO> and Furuno GT8031 on board. I found hook up information in one of > the Asian> vendor's ads. When it arrived, I hooked it up and waited for it > to achieve> GPS lock. I left it over night, but it never locked. This morning, > I sent a> message to the seller requesting to return it. I looked around > on eBay to> see what the going price was and discovered that the US source > was about> 1/3rd the price of the Asian vendors. I also noticed in one > listing where> the seller mentioned that it will not discipline the 10 MHz > unless you> entered a command by RS232. If you buy one, he will tell you what > the> secret command is. Does anyone, perchance happen to know the secret > command? And, would you be willing to share? This isn't a bad looking> little > board. I was thinking of pulling the little CTS oscillator and> replacing it > with something better. The fact that you have to tell > it to do> its thing is something of a bummer, but I think I can live with it. > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon>> > Virus-free. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link>> > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > _________________________________________________ > 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.
