FONA 3G (sim5320) gps not working - again! Moderators: adafruit_support_bill, adafruit

[danielpaley]

Hi folks.
followed the prior instructions found here (and other places). I've put a solder bridge on the board (using active antenna). For a short time I was getting GPS information on one of the two board I've got. But power cycling the board caused GPS to go away. Second board has not generated GSP information.

That said, I am getting 4 SAT's (from at+cgpsinfocfg=10,31 -> generated

$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPGSV,4,1,16,32,,,,24,,,,29,,,,05,,,*72
$GPGSV,4,2,16,18,,,,22,,,,04,,,,11,,,*75
$GPGSV,4,3,16,17,,,,03,,,,12,,,,30,,,*7C
$GPGSV,4,4,16,01,,,,23,,,,15,,,,27,,,*7F
$GPGGA,,,,,,0,,,,,,,,*66
$GPVTG,,T,,M,,N,,K,N*2C
$GPRMC,,V,,,,,,,,,,N*53''

but the at+cgpsinfo generates ->
at+cgpsinfo
+CGPSINFO:,,,,,,,,

AmpI/AmpQ: 509/507

I've set the clock and it's showing the correct time and date. I've looked at all the GPS commands to see if I'm missing something - but I've not had any joy in resolving. Like I said, somewhere while setting the first board, I was able to get GPS information reporting correctly. What am I missing?

[danielpaley]

alright a bit more information. I found and loaded the simcom GPS demo (V1.07). I'm using the SIM7100E setting. It seems to be finding stuff alright... so it may just be a reporting issue. what would cause the difference from the NMEA 9000 port reporting in NMEA format and the at+cgpsinfo reporting on command (or cgpsinfocfg for that matter).

any ideas why?