Steps to Raw Measurement Data by M8N

[shubham9436]

I am trying to get the Raw Measurement Data by M8N but not able to get it. The firmware version is 2.01. I followed this tutorial: https://rtklibexplorer.wordpress.com/2016/02/03/collecting-raw-gps-data-with-rtklib/ .

I start the STRSVR program and enter the following command in input:

!UBX CFG-GNSS 0 32 32 1 0 10 32 0 1
!UBX CFG-GNSS 0 32 32 1 6 8 16 0 1
!UBX CFG-MSG 3 15 0 1 0 1 0 0
!UBX CFG-MSG 3 16 0 1 0 1 0 0
!UBX CFG-MSG 1 32 0 1 0 1 0 0 

This is the file (.ubx) I get after running the above mentioned command. gps.zip

But when I use rtkconv to get .nav and .obs file, it produces error E=7. The error maybe because of the absence of raw data.

Can someone please tell me the proper steps to get the raw data from M8N

[reid-p]

On 13/05/2021 19:00, Shubham Baranwal wrote:

I am trying to get the Raw Measurement Data by M8N but not able to get it. The firmware version is 2.01. I followed this tutorial: https://rtklibexplorer.wordpress.com/2016/02/03/collecting-raw-gps-data-with-rtklib/

I start the STRSVR program and enter the following command in input:

|!UBX CFG-GNSS 0 32 32 1 0 10 32 0 1 !UBX CFG-GNSS 0 32 32 1 6 8 16 0 1 !UBX CFG-MSG 3 15 0 1 0 1 0 0 !UBX CFG-MSG 3 16 0 1 0 1 0 0 !UBX CFG-MSG 1 32 0 1 0 1 0 0 |

This is the file (.ubx) I get after running the above mentioned command. gps.zip https://github.com/tomojitakasu/RTKLIB/files/6472027/gps.zip

But when I use rtkconv to get .nav and .obs file, it produces error E=7. The error maybe because of the absence of raw data.

Can someone please tell me the proper steps to get the raw data from M8N

See the note at the top of the link: https://rtklibexplorer.wordpress.com/2016/02/03/collecting-raw-gps-data-with-rtklib/

The TRK-MEAS and TRK-SFRBX messages on the most recent version of the M8N are now scrambled, making raw observations unavailable on this receiver. You will need to use either the u-blox M8T, M8P, or F9P receiver, and enable the RXM-RAWX and RXM-SFRBX messages.

-- Regards Phil Reid

ElectroMagnetic Imaging Technology Pty Ltd Development of Geophysical Instrumentation & Software www.electromag.com.au

23 Junction Parade, Midland WA 6056, AUSTRALIA Ph: +61 8 9250 8100 Fax: +61 8 9250 7100 Email: @.***

[tomojitakasu]

For raw data in M8N F/W 2.01, refer the following material.

http://gpspp.sakura.ne.jp/paper2005/gpssymp_2014_ttaka.pdf

TRK-MEAS and TRK-SFRBX have been unformal and unsupported by u-blox. I found unexpected behavior in raw measurement. I recommend to use M8T instead.

[shubham9436]

For raw data in M8N F/W 2.01, refer the following material.

http://gpspp.sakura.ne.jp/paper2005/gpssymp_2014_ttaka.pdf

TRK-MEAS and TRK-SFRBX have been unformal and unsupported by u-blox. I found unexpected behavior in raw measurement. I recommend to use M8T instead.

Thank you for the suggestion.