Value of FIX (3D or 2D) in EG91-EX

IoT Modules LTE Standard Module
1

Hello Quectel experts, using the EG91-EX modem and activating the GNSS module…
Can someone clarify why the GPSLOC frame shows a 2D fix, while the GPGSA frame indicates a 3D fix?
According to the Quectel_EC2x&EG2x&EG9x&EM05_Series_GNSS_Application_Note_V1.5.pdf document, the GPSLOC frame fix data is obtained from the GAGSA/GPGSA frame. I don’t understand why they are different data.
I show datas in UART…

image
image982×251 7.7 KB

2

Hi ，

  1. Is this problem 100% occurring?
  2. May I ask if you conducted the test outdoors in an open space?
3

Hi,

  • Is this problem 100% occurring? Allways are ocurring, only the first fix is 3D in same sentences, the second and nexts are how the image.
  • May I ask if you conducted the test outdoors in an open space? Of course, at outdoor or indoor with GNSS repeater.

Thank you for comment.