Fixposition Documentation
Fixposition Documentation
Breadcrumbs

PCTEL GNSS-L125-TNC

Setup

image-20230329-143011.png
Fig. 1: GNSS-L125-TNC antenna

Antenna phase center:

image-20230329-142851.png

Test results

Stationary 1

In this test the GNSS-L125-TNC antenna was connected to GNSS2.

image-20230320-163952.png
Number of tracked signals
image-20230320-164012.png
Position variance
image-20230320-164030.png
CN0 timeseries
image-20230320-164049.png
CN0 histogram
image-20230320-164104.png
ENU position estimate statistics

Timeseries file:

antennas1-pctel.html

Link to KML file: 2023-03-07-13-08-16

Links to raw GNSS data: GNSS1, GNSS2

Stationary 2

In this test the GNSS-L125-TNC antenna was connected to GNSS1.

image-20230320-165036.png
Number of tracked signals
image-20230320-165051.png
Position variance
image-20230320-165105.png
CN0 timeseries
image-20230320-165130.png
CN0 histogram
image-20230320-165144.png
ENU position estimate statistics

Timeseries file:

antennas2-pctel.html

Link to KML file: 2023-03-07-13-40-26

Links to raw GNSS data: GNSS1, GNSS2

Urban canyon
image-20230320-165313.png
Number of tracked signals
image-20230320-165325.png
Position variance
image-20230320-165336.png
CN0 timeseries
image-20230320-165347.png
CN0 histogram
image-20230320-165401.png
ENU position estimate statistics

Timeseries file:

antennas3-pctel.html

Link to KML file: 2023-03-20-12-59-13

Links to raw GNSS data: GNSS1, GNSS2

GNSS outage
image-20230320-165501.png
Number of tracked signals
image-20230320-165531.png
Position variance
image-20230320-165545.png
CN0 timeseries
image-20230320-165557.png
CN0 histogram
image-20230320-165617.png
ENU position estimate statistics

Timeseries file:

antennas4-pctel.html

Link to KML file: 2023-03-20-13-11-20

Links to raw GNSS data: GNSS1, GNSS2

Conclusions

  • Worse than the reference.

  • L2 signals seem to have lower SNR.

  • Not recommended.