[time-nuts] Re: Updated TimeHat image (new gpsd!)

2021-10-22 Thread W7SLS
Perfect. Thanks Sent from my iPhone > On Oct 22, 2021, at 7:22 PM, John Miller via time-nuts > wrote: > > Hi Scott! > Thanks for the kind words. Writing out this image to an SD card is fairly > easy. Download the file I linked in my first email, then use 7zip to > decompress it. Once

[time-nuts] Re: Updated TimeHat image (new gpsd!)

2021-10-22 Thread John Miller via time-nuts
Hi Scott! Thanks for the kind words. Writing out this image to an SD card is fairly easy. Download the file I linked in my first email, then use 7zip to decompress it. Once decompressed, attach your SD card to your computer with a USB SD reader (or attach it directly if your computer has an SD

[time-nuts] Re: Updated TimeHat image (new gpsd!)

2021-10-22 Thread W7SLS
1 - you are the best, thanks. 2 - your priorities seem great (family, work, …., RPi) 3 - may I ask you to CC me if you e-mail someone on how to update? 4 - don’t make a special e-mail for me, I can follow the info below (It is more curiosity… I have 2 timeHats, and can do them one at a

[time-nuts] Re: Updated TimeHat image (new gpsd!)

2021-10-22 Thread Bill Beam
Hello John, I have been regularly updateing DietPI, now at V 7.7.3. Is there anything new here? Regards, Bill On Fri, 22 Oct 2021 21:11:54 -0400, John Miller via time-nuts wrote: >Hello all, >HereG€™s an updated system image for the TimeHat - including the latest >versions of gpsd, chrony,

[time-nuts] Updated TimeHat image (new gpsd!)

2021-10-22 Thread John Miller via time-nuts
Hello all, Here’s an updated system image for the TimeHat - including the latest versions of gpsd, chrony, and DietPi. I had been meaning to get this image out sooner, but things have been pretty busy lately between work and family. https://millerjs.org/files/TimeHat32_20211022.img.xz

[time-nuts] Re: GPS D (i.e. gpsd) roll over bug..Oct 24th

2021-10-22 Thread Poul-Henning Kamp
Björn writes: > The L1 C/A was optimised many decades ago. The first GPS receiver to use the L1 C/A code took up four full racks and required to very alert persons to operate. There is a picture of it in one of the many "History of GPS" presentations given by the principals of the

[time-nuts] Re: GPS D (i.e. gpsd) roll over bug..Oct 24th

2021-10-22 Thread Magnus Danielson via time-nuts
Chris, On 2021-10-22 22:18, Chris Caudle wrote: On Fri, October 22, 2021 12:22 pm, Magnus Danielson via time-nuts wrote: I find it amusing, as this was discussed on ntp-questions email-list in mid August 2013, and clearly explained with due references. According to the problem report this

[time-nuts] Re: GPS D (i.e. gpsd) roll over bug..Oct 24th

2021-10-22 Thread Chris Caudle
On Fri, October 22, 2021 12:22 pm, Magnus Danielson via time-nuts wrote: > I find it amusing, as this was discussed on ntp-questions email-list in > mid August 2013, and clearly explained with due references. According to the problem report this problem was only introduced in 2019, so seems to be

[time-nuts] Re: GPS D (i.e. gpsd) roll over bug..Oct 24th

2021-10-22 Thread Magnus Danielson via time-nuts
Björn, The C/A code format have seen much greater changes before that. It's extention from 24 to 32 birds was not small, neither was the addition of the GPS-UTC corrections. Cheers, Magnus On 2021-10-22 21:29, Björn wrote: ”It's actually a systemflaw that never was fixed in L1 C/A code. It

[time-nuts] Re: GPS D (i.e. gpsd) roll over bug..Oct 24th

2021-10-22 Thread Bob kb8tq
Hi As various GPS module designs done over the last decade or so have shown, you *can* fix this at the module level. Yes, each of those fixes has its drawbacks. However, the modern designs are a lot less likely to “die” 10 or 20 years from now. ….. and to address the inevitable follow up

[time-nuts] Re: GPS D (i.e. gpsd) roll over bug..Oct 24th

2021-10-22 Thread Björn
”It's actually a systemflaw that never was fixed in L1 C/A code. It would have been good if they added additional GPS-weeks bits in that signal, but it never materialiseras. It did for other newer signals.” The L1 C/A was optimised many decades ago. How Do you change the bitstream definition,

[time-nuts] Downsizing

2021-10-22 Thread Bob Quenelle
Please contact me off list if you are interested in any of the following Synergy Systems Lucent M12+ timing receiver with antenna. In shielded box. $20. Adafruit Ultimate GPS Breakout with battery clip and SMA to uFL adapter cable. Purchased 2018, barely used.

[time-nuts] Re: GPS D (i.e. gpsd) roll over bug..Oct 24th

2021-10-22 Thread Magnus Danielson via time-nuts
Hi, On 2021-10-22 17:58, Kevin Rowett wrote: For those using GPSD (https://gpsd.gitlab.io/gpsd/index.html ) to read GPS receivers, and get the GPS time, there is a bug that could cause problems on Oct 24th.

[time-nuts] GPS D (i.e. gpsd) roll over bug..Oct 24th

2021-10-22 Thread Kevin Rowett
For those using GPSD (https://gpsd.gitlab.io/gpsd/index.html ) to read GPS receivers, and get the GPS time, there is a bug that could cause problems on Oct 24th. https://us-cert.cisa.gov/ncas/current-activity/2021/10/21/gps-daemon-gpsd-rollover-bug