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remotly connect, up speed for download data with CR3000

RamonLopez Mar 31, 2020 05:58 AM

I have CR3000 datalogger with NL116 adapter.
I save the eddy covariance data in CF Card to 10Hz.
I connect remotly using a 4G router with SIM, connected to datalogger with ethernet cable.
When download data the speed is 3KB/s, very slowly. When connect a PC, I can trasmit data 300 KB/s, Why the speed from datalogger is slowly?, Can I do to up this speed for download data?.


JDavis Mar 31, 2020 08:30 AM

FTP file transfer is more efficient than Pakbus file transfer. You can add FTPClient to a slow sequence in the datalogger program to push out data files with FTP protocol.

Nico Feb 9, 2021 09:48 AM

Hello Ramon.

Did you ever solve this issue?

I'm in a similar situation and have the same problems (peer-to-peer I get 40kB/s Loggernet and -120kB/s FTP compared to modem I get 4kB/s LN and 6kB/s via FTP).
So FTP is ~25% faster, but at those speeds its rather silly.

But I'm also running a CCFC and the download speeds from this do not change as much when running peer-to-peer compared to running it via a modem (~290kB/s) when downloading images from it via browser (Chrome).
My research so far points to this being a TCP buffer issue in the firmware of the logger..


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