EC200U return -0.0 for lat lon

IoT Modules LTE Standard Module
1

Dear Quectel Community,

I am reaching out for assistance regarding an issue I’ve encountered with the EC200U module. When attempting to parse latitude and longitude data, the module sometime returns a value of -0.0. This unexpected result is impacting the functionality of my application.

I would be grateful for any insights or solutions regarding this matter. Has anyone else experienced similar issues with the EC200U module? If so, how were you able to resolve this? Any advice or guidance on troubleshooting steps that I might take to address this problem would be highly appreciated.

Thank you in advance for your time and assistance.

Kind regards,
Quang

2

Hi @Minh_Quang1
Can I ask how you got the latitude and longitude? Was it obtained using AT+QGPSLOC? In addition, please make sure to test the GNSS function in an outdoor open environment and ensure that GNSS has been turned on using AT+QGPS=1.

3

1.Yes, GNSS have turn on by using AT+QGPS=1.

2.I check GPS outdoor and already get correct lat/lon, but sometime it return -0.0 in both of them

3.I use AT+QGPSLOC and parse by all of GPRMC , GPGGA, GPGSA and GPGSV process