The #XGPS command controls the GNSS.

[Carey]

Hi,  I use AT command controls the GNSS use Serial LTE modem example in my 91DK board. 

I send command as below example, 

but my uart tool receive as blow, and i don't seem the GPS information output as the expamle. why?

[Albrecht Markus Schellenberger]

Hello Carey, 

but my uart tool receive as blow, and i don't seem the GPS information output as the expamle. why?

Two possible reasons: 

1. You have to switch from Segger RTT to the UART console.
2. You actually are not getting any fix. Is the device placed in an environment where it should be able to calculate a fix, preferably outside under the open sky without any obstacles close by, like high buildings that could create disturbances? 

Regards, 

Markus 

[Carey]

Hi, I move to the roof top platfom of my build (25 floors), than i can see the sky in each position, Now i test below gps at command , and i have wait more than 10 minutes at three different place. the rezult still don't have anything expcet  'OK"

bleow is my 91DK board and command detail.

[Albrecht Markus Schellenberger]

Carey said:

Hi, I move to the roof top platfom of my build (25 floors), than i can see the sky in each position, Now i test below gps at command , and i have wait more than 10 minutes at three different place. the rezult still don't have anything expcet  'OK"

Thanks for the feedback, Carey! Have you changed from RTT to UART console mode? 

By the way, I would appreciate if you could share logs in text format, preferably using the Insert --> Code functionality here in DevZone. 

Thanks & regards, 

Markus 

[Carey]

This is the RTT Viewer recived information,  I don't know if it's right.

[Albrecht Markus Schellenberger]

Carey said:

This is the RTT Viewer recived information,  I don't know if it's right.

Thank you, Carey! 

nRF9160 DK v0.9.0 does not come with an on-board antenna, meaning that:

AT%COEX0=1,1,1565,1586

will have no effect, as it enables the LNA for the on-board antenna. 

You need to connect an external antenna using 

AT%XCOEX0

instead. 

Regards, 

Markus