Paul,
I think the next 1024 week rollover is in the year 2020. About 8 years from
now.
Regards, Doug
Connected by DROID on Verizon Wireless
-----Original message-----
From: paul swed <[email protected]>
To: Discussion of precise time and frequency measurement
<[email protected]>
Sent: Thu, Jun 7, 2012 02:44:52 GMT+00:00
Subject: Re: [time-nuts] Thunderbolt GPS rollover
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...
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