I have followed this post.
I have tried the OOB antenna that came with the unit.
I have soldered the SJX jumper to enable active GPS antenna support.
I have 3 different antennas and 2 connectors tested.
Due to my coastal location I drove over the hill on the SF peninsula to see if this has an effect.
Using and active GPS antenna with magnet on the roof of my truck.
Using a Verizon SIM and internet works reliably using PPP.
I still have a RPi3b setup with a SIMCOM SIM808 and these antennas all work fine, albeit the SIM808 has active antenna screw connectors on the board. Getting used to the mini connectors and believe I am getting a good snap connecting the antenna.
Tests were done on the front porch railing with lots of blue sky above.
Tests were done with the unit in the truck and the active antenna on the roof.
Consistently get 17 to 30 values, definitely better on the other side of Skyline drive, but always getting a 99 for RSSI from AT+CSQ, i.e. 18,99 or 27,99 or 30,99
I have two BG95MC-128-SGNS boards with Verizon SIMs, trying to figure out what I am doing wrong. In each test I gave it plenty of time to acquire a signal.
Also I am doing AT+CGPSCFG=? and I see all the options. I cannot seem to issue the right command to configure GPS settings, and I see the defaults in the documentation, but this command just gives CME ERROR: 502 when I try AT+QGPSCFG? or AT+QGPSCFG. I have tried performing a setting such as AT+QGPSCFG: “nmeasrc”, 1 and just get ERROR.
I have downloaded and tested gpstest.py using python (2) and python3, but with the 99 there is no signal acquired so there is no output.
The only thing I can speculate is my soldering looks ok but isn’t. Could we consider a switch on the board instead of a solder? I am having to go back to my SIM808 to continue working on the solution. I have put a lot of effort in to trying to make this work, maybe there is something I am not doing correctly.
Thank you in advance
pi@archive101:~ $ sudo minicom -b 115200 -D /dev/ttyUSB3 configuration archive1
Welcome to minicom 2.7.1
Compiled on Aug 13 2017, 15:25:34.
Port /dev/ttyUSB3, 02:13:53
Press CTRL-A Z for help on special keys
+CME ERROR: 502
+CME ERROR: 502