I'm testing a Telit LN940 LTE module in an RBSXTR running ROS 7.11.2, using an m.2 to mini PCI-E adapter. The module is in USB mode 1 which gave me the LTE interface and ability to use AT commands (had to use another device to send AT command to change USB mode before putting into the SXT).

CA (carrier aggregation) is enabled, and I can see three bands using the AT^CA_INFO? command. However I'm getting the same speeds as when I disable CA and use only one band. I'm not convinced all three bands are being used.

Is there a way to verify if all bands are actually being used, or force them to be used, to take advantage of the higher potential speeds?