Gees Paul, You must be answered a different message ?
To Robert, If all you are doing is trying to get a time stamp and a pps measurement to 100 microsecond precision, then there are cheaper ways to go then using a Thunderboldt. There are a number of consumer OEM level GPS boards that would provide what you need for under $100 each. Thunderboldts usually go for more than $100 each. there are ways of handling the counter needs differently as well. However, you may well be able to use a GPS right on board the rocket with logging. It seems to me a few Amateur rocket people have all ready done that very thing. GOOGLE for several sites on other rocket people. Bill....WB6BNQ paul swed wrote: > Well there are far better experts then me. > I can only say that an austron 2201 works very well and shouldn't. They > were supposed to die in 1998 I believe. Essentially you put the date into > it 1024 weeks ago and it does a very nice job of finding satellites, > location, and establishing an accurate frequency. > So I would guess the tbolts would do the same but I will bet the experts do > know. > If they do not I can sell you one real cheap. :-) Then stick with the old > 2201. > Regards > Paul > WB8TSL > > On Wed, Jun 6, 2012 at 10:33 PM, Robert Watzlavick > <[email protected]>wrote: > > > Sorry to resurrect an old thread but I also have a question about using > > the Thunderbolt in the future. I'm considering using 4 of them in a > > multilateration setup to track an amateur rocket with an onboard beacon. > > I'm a few years away from the flight so I don't want to invest in hardware > > that may not work. It doesn't matter if the date (or even the absolute > > time) is wrong as I'll just be measuring the delta time between reception > > of the beacon and each unit's 1 PPS output. However, accurate position > > data would be required. I would also need the 10 MHz to be usable to drive > > the counter measuring the delta time. > > > > Will the unit still "work" but just put out the wrong date? Or will it > > effectively turn into a brick? > > > > Thanks, > > -Bob > > > > On 10/19/2011 08:06 PM, Thomas S. Knutsen wrote: > > > >> I do assume this is because of the 1024 week cycle? if so would it be > >> possible to tell the GPS what cycle it should be? > >> > >> Would the 10MHz out still be accurate? > >> > >> BR. Thomas. > >> > >> 2011/10/20 Mark Sims<[email protected]>: > >> > >>> On July 30, 2017 all our Thunderbolts turn into back-dated pumpkins... > >>> ______________________________**_________________ > >>> time-nuts mailing list -- [email protected] > >>> To unsubscribe, go to https://www.febo.com/cgi-bin/** > >>> mailman/listinfo/time-nuts<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<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.
