Re: GPS rollover
oops, I guess I was wrong, missed the drama somehow. Ignore my previous comment. On Sat, Apr 6, 2019, 6:17 AM Forrest Christian (List Account) < li...@packetflux.com> wrote: > Still being maintained. .. https://www.apneaboard.com/sleepyhead/ > > On Sat, Apr 6, 2019, 5:30 AM Jared Mauch wrote: > >> I keep mine in airplane mode and use SleepyHead to read the SD card. (I >> see it was shut down by the developer, but it should still work for you). >> >> - jared >> >> > On Apr 5, 2019, at 7:47 PM, Eric Parsonage wrote: >> > >> > >> > I personally fell foul of this last night. My CPAP machine switched >> itself off. It has an internal cellular modem which it uses to exchange >> usage data but since I never have to set the date and time I assume it gets >> this from my cellular network. Its hardly a graceful fail when the air >> supply turns itself off. >> > >> > >> > >> > >> > >> >>
Re: GPS rollover
Still being maintained. .. https://www.apneaboard.com/sleepyhead/ On Sat, Apr 6, 2019, 5:30 AM Jared Mauch wrote: > I keep mine in airplane mode and use SleepyHead to read the SD card. (I > see it was shut down by the developer, but it should still work for you). > > - jared > > > On Apr 5, 2019, at 7:47 PM, Eric Parsonage wrote: > > > > > > I personally fell foul of this last night. My CPAP machine switched > itself off. It has an internal cellular modem which it uses to exchange > usage data but since I never have to set the date and time I assume it gets > this from my cellular network. Its hardly a graceful fail when the air > supply turns itself off. > > > > > > > > > > > >
Re: GPS rollover
I keep mine in airplane mode and use SleepyHead to read the SD card. (I see it was shut down by the developer, but it should still work for you). - jared > On Apr 5, 2019, at 7:47 PM, Eric Parsonage wrote: > > > I personally fell foul of this last night. My CPAP machine switched itself > off. It has an internal cellular modem which it uses to exchange usage data > but since I never have to set the date and time I assume it gets this from my > cellular network. Its hardly a graceful fail when the air supply turns > itself off. > > > > >
Re: GPS rollover
Sounds like something that should be reported to the FDA. -- Mark Andrews > On 6 Apr 2019, at 10:47, Eric Parsonage wrote: > > > I personally fell foul of this last night. My CPAP machine switched itself > off. It has an internal cellular modem which it uses to exchange usage data > but since I never have to set the date and time I assume it gets this from my > cellular network. Its hardly a graceful fail when the air supply turns > itself off. > > > > > >
GPS rollover
I personally fell foul of this last night. My CPAP machine switched itself off. It has an internal cellular modem which it uses to exchange usage data but since I never have to set the date and time I assume it gets this from my cellular network. Its hardly a graceful fail when the air supply turns itself off.
Re: GPS rollover
Matthew Petach : > On Sun, Mar 10, 2019 at 8:04 PM Stephen Satchell wrote: > > > So far as I can tell with NTP, there was no issue with time sources > > becoming false-tickers, including my local GPS appliance. FWIW. > > > > > I believe the rollover is *next* month, in April. :) > https://ics-cert.us-cert.gov/sites/default/files/documents/Memorandum_on_GPS_2019.pdf > > "This paper is intended to provide an understanding of the possible effects > of the April 6, 2019 GPS Week Number Rollover on Coordinated Universal Time > derived from GPS devices." I'm a domain expert in this area - lead of NTPsec and GPSD. Everything said in that memo is correct. I would add only that it is more normal now than not for GPSes to have a hidden pivot date. "For example, a particular GPS device may interpret the WN parameter relative to a firmware creation date and would experience a similar rollover event 1024 weeks after that firmware creation date." Yes, exactly. It is therefore unlikely that your GPSes will become falsetickers on 6 April. That's the good news. The bad news is that they *will* go poof some unpredictable number of weeks later. -- http://www.catb.org/~esr/";>Eric S. Raymond My work is funded by the Internet Civil Engineering Institute: https://icei.org Please visit their site and donate: the civilization you save might be your own.
Re: GPS rollover
On Sun, Mar 10, 2019 at 8:04 PM Stephen Satchell wrote: > So far as I can tell with NTP, there was no issue with time sources > becoming false-tickers, including my local GPS appliance. FWIW. > > I believe the rollover is *next* month, in April. :) https://ics-cert.us-cert.gov/sites/default/files/documents/Memorandum_on_GPS_2019.pdf "This paper is intended to provide an understanding of the possible effects of the April 6, 2019 GPS Week Number Rollover on Coordinated Universal Time derived from GPS devices." Matt
GPS rollover
So far as I can tell with NTP, there was no issue with time sources becoming false-tickers, including my local GPS appliance. FWIW.
