April 6, 2019 marks the date when we find out if your older GNSS gear stops working, that is the 2nd date since?ÿJanuary 6, 1980 that we roll the GPS weeks over (every 1024 weeks), the last was?ÿAugust 21, 1999.
For older gear, what does that mean? Maybe nothing, maybe it quits? The box needs to know which set of 1024 weeks you are working in, there are various ways this can be done, but for products that are past EOL and for which there has not been a firmware upgrade for awhile, who knows. I am hoping my older Leica gear keeps chugging, BUT did anybody think in 2007 that a receiver would still be in service in 2019? What about older gear yet that made it through through the 1999 rollover and is still in use? Probably not a lot of that left, well there might be a user or two on this board I can think of 🙂
SHG
?ÿ
Good question Shelby, I guess we will have to wait and see...
I still use (occasionally) a couple of Novatel DL receivers with Novatel 503 Choke Ring?ÿAntennas. These units were built in 2000, and still work FINE, although the dates in the RINEX files are off by 1024 weeks. This isn't really a problem for me because I always dink with the RINEX files anyway. Hopefully they will keep cooking along and just require?ÿ2048 week "dinkage" in the future.
I do have 2 shiny new ig3 units, so I will still be able to?ÿgo out and play regardless.
?
Loyal
I am hoping my older Leica gear keeps chugging, BUT did anybody think in 2007 that a receiver would still be in service in 2019?
SHG
?ÿ
I have 4 of the SR530 units that I still use.?ÿ I'll be hoping along with you that Leica's free firmware upgrade (v. 5.1) will work on April 20, 2019.
I got to thinking about it, and I'm pretty sure that it was the "billion second" rollover in 2011 that fools my receivers into getting the GPS Week wrong. But then my "thinking" ain't what it used to be, and probably never was (with all due respect to Will Rogers).
Loyal
Loyal,
I believe the "billion second" rollover was related to the Yellow gear.
I had to upgrade the firmware in August 2009 for my Leica gear.?ÿ I think Shelby meant 2009 instead of 2007 in his post.
Here is the Leica notice for the System 500 gear.?ÿ It didn't affect the 1200 series.
Could be Gene, but it seems to me that the Novatel DLs worked fine until "fairly" recently. I would have to go back to some old RINEX files to be sure though. Getting OLD really sucks!
Loyal
From what I have read, this rollover may be a little more complex than the 1999 event since now we will be into the 3rd cycle and things could be a little more involved, three choices now instead of two. Depending on what manufacturers did the first time to handle this and how long ago they actually rolled out firmware for some of these old receivers may determine who gets to pass go and who doesn't!
And then there is the 31-Dec-2020 codeless and semi-codeless GPS sunset date that has now been extended to 2023-24 when you will need L5 to play.
Eventually even pristine functioning gear becomes obsolete! If I hadn't bought on the bleeding edge in 2007 I would of probably already upgraded, but dual constellation gear capable of RTN still functions fine for me, newer gear adds a few more constellations, is lighter and so on, but in clear skies is it really going to be better than this paid for gear I have?
SHG
I don't think the Trimble 4000sse and ssi receivers will give you .dat files that work directly since week 1024, but if you specify the correct week when converting to Rinex, all is well.?ÿ I hope and expect that to be true after week 2048 also.
I don't think the Trimble 4000sse and ssi receivers will give you .dat files that work directly since week 1024
Mine do -- doesn't yours??ÿ The only Trimble receivers that produce files I have to muck with are the 4700 models.
Oh, it does work!?ÿ I set up a work flow when I started using it that included converting to Rinex so I could play with options.?ÿ I thought I remembered that the .dat file didn't work on OPUS, but today it does so maybe I remembered wrong.