Rayane
August 24, 2022, 12:36pm
1
Hello,
I have a quectel 5G module RM502Q-AE and the purpose is to obtain position with a GPS antenna
I fellowed this tutorial : RM500Q-GL 5G HAT - Waveshare Wiki
And in the part of “step dial-up intenet access”, i did the AT command, but they didn’t work
AT+QNETDEVCTL=2,3,1
AT+QNETDEVSTATUS=2
I had error for these two.
So i wasn’t able to obtain the position, so i don’t know what to do.
Thanks for your help.
Rayane:
AT+QNETDEVCTL
AT+QNETDEVCTL won’t work for RM502Q.
For RM502Q you can follow the
Quectel_RG50xQ&RM5xxQ_Series_AT+QCRMTOOL_Data_Call_Application_Note_V1.0.pdf (306.7 KB)
or use the quectel-CM to setup dacall.
Rayane
August 28, 2022, 10:46am
3
Hello,
Thanks for your answer, i will try it.
I have another problem if you can help me.
It concerns the GPS Positioning with the same Quectel module
I turn on the GPS : AT+QGPS=1 , it’s OK
But when i try to obtain the position with AT+QGPSLOC=0 , i have error 516 and i don’t know how to solve this issues, i tried the GPS antenna indoor and outdoor and always the same error
Thanks for your answer
Can you get the position through the nmea log?
If you set hte AT+QGPS=1 , the nmea log would output from the nmea port.
516 means “Not fixed now”.
It takes some time for the module get the location.
Rayane
August 28, 2022, 8:07pm
6
Yes, after enabling the GPS, i open the NMEA port, i have the NMEA frame but without information of Latitude, Longitude… etc
Like in the picture below. (And i have the same thing when i use linux).
Maybe it has something to do with the antenna.
The GPS gntenna is different from the LTE/WIFI/BT antenna, and it should be placed outdoor.
From the nmea log, the GPGGA didn’t tell us the position fix data , there is no enough active satelites from the GPGSA.
Rayane
August 29, 2022, 7:45am
8
Hello,
So how can i fix this and obtain the position please?
Could you show how the antenna is placed?
Rayane
August 30, 2022, 7:31am
10
Hello,
This is the antenna, i put it like this outdoor
(Ps: i also tried to put it in the other face and same thing)
How it connect with the RM502Q-AE?
btw,the antenna should put outdoor.
Rayane
August 31, 2022, 7:21am
12
Hello, yes i put it outdoor and in a tuto from waveshare, i saw that i have to connect the GPS antenna to the interface of ANT3 of the module
Rayane
August 31, 2022, 7:53am
13
Like shown in this picture
Yes. the GNSS antenna should connect with the ANT3_GNSSL1.
Rayane
August 31, 2022, 8:50am
16
Yes, so the GNSS antenna port i used is the right one.
Then what am i doing wrong? Why it doesn’t work?
Again thanks a lot for your answers.
RM502Q-AE only support Passive Antenna.
Could you check whether it is passive antenna or active antenna.
Rayane
August 31, 2022, 12:56pm
18
Yes, it’s a passive antenna
Rayane
September 1, 2022, 1:49pm
19
Hello,
I get this know, what do you think?
Please wait for several seconds. It might work and return the location for the GPGGA.