base station location data files

[steve1428]

Hi all,
has anyone tried to collect 24 hours worth of data to provide to these services who calculate your exact location?
pygpsclient seems to create a new file every few minutes. Is there a way to change the record time for these data files so we don't have to combine them all later?
has anyone tried saving all this data for this purpose?

[semuadmin]

@steve1428

So, yes, plenty of users have collected more than 24 hours of data. PyGPSClient cycles the log files to prevent any individual file getting too large, but you can easily concatenate the files into a single file if needs be thus:

If you're using MacOS or Linux:

cat pygpsdata-20250604185906.log pygpsdata-20250604191906.log pygpsdata-20250604193606.log >> combined.log

If all the files are in the same directory and have the same *.log suffix, you can shorten this to:

cat pygpsdata*.log >> combined.log

If you're using Windows:

COPY /B pygpsdata-20250604185906.log + pygpsdata-20250604191906.log + pygpsdata-20250604193606.log combined.log

COPY /B pygpsdata*.log combined.log

In practice, users who need to log several days or weeks worth of data will generally use CLI tools like the gnssstreamer utility in pygnssutils.

[steve1428]

Thanks for the reply
forgive more linux questions.....is there a way to somehow automate the naming of all the files without having to copy and paste them all into the merge command? I did some research and found the concatenate function in python but I was wondering how to corral so many file names.

[semuadmin]

Can you clarify what you mean by 'automating the name of the files'?

Datalog files from PyGPSClient will always follow the naming format pygpsdata-<timestamp>.log, so a simple cat pygpsdata*.log >> combined.log should always work.

[steve1428]

Ok thanks. One more thing. My quacktel phat is stuck in rtc mode I think. I want to collect the nema data with it now. I disabled base station and tried launching PyGPSClient fresh but I think the chip still thinks it's in base mode I used the nema config window to set mode back to 1 (rover) and when I check back it looks like the change was accepted but the data stream is only RTCM? Nevermind I tried the reset command Then save command Power cycle Now it's back to spitting out NMEA

…

On Thu, Jun 5, 2025, 8:06 AM SEMU Admin ***@***.***> wrote: Can you clarify what you mean by 'automating the name of the files'? Datalog files from PyGPSClient will *always* follow the naming format pygpsdata-<timestamp>.log, so a simple cat pygpsdata*.log >> combined.log should always work. — Reply to this email directly, view it on GitHub <#194 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ARQMJHBMEBNF65JYE3N3TBT3CBMIJAVCNFSM6AAAAAB6VJDYPOVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTGMZYGEYDMNA> . You are receiving this because you were mentioned.Message ID: ***@***.*** com>

[semuadmin]

If you're referring to a Quectel RTK receiver, you have to explciitly send it the 'Disable Base Station' commands. So, in PyGPSClient, set 'Base Station Mode' to 'DIsabled', ensure 'Configure Base Station' is checked and then tick the 'NTRIP Caster' checkbox while the receiver is connected. Once the receiver returns to normal mode, you can uncheck the 'NTRIP Caster' checkbox - it should happen more or less instantly.

[steve1428]

Ok, I'll try that next time. I got it with NMEA config window commands
Rcvrmode
Then I reset it
Restorepar
Savepar
Power cycle

[semuadmin]

well, you can do it that way as well - you just have to send the appropriate 'reversing' commands afterwards - they're all in the Quectel manual. Quectel receivers can be very picky about the exact sequence of reset commands - sometimes you have to do an explicit Hot Restart over and above any reset or power cycle.

[steve1428]

is there a way to make a Pi be a dedicated pygpsclinent base station that autolaunches preconfigured as soon as you plug it in? I think you can make a script or something to affect startups but do we need any special command to get pygpsclient to startup and connect by itself?

…

On Thu, Jun 5, 2025 at 9:36 AM SEMU Admin ***@***.***> wrote: well, you can do it that way as well - you just have to send the appropriate 'reversing' commands afterwards - they're all in the Quectel manual — Reply to this email directly, view it on GitHub <#194 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ARQMJHEFBG7UX7KSSESIDU33CBWZXAVCNFSM6AAAAAB6VJDYPOVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTGMZYGIYDGMI> . You are receiving this because you were mentioned.Message ID: ***@***.*** com>

[semuadmin]

I believe your original query has been addressed. If you have further queries, could I ask that you raise them as separate discussion topics? This makes it much easier to track and search. Many thanks.

#196