@pthomason I, too, am trying to find a way to get the signal strength periodically to build a coverage map of our 5G CBRS deployment. It seems like qmicli can be used for this purpose, but it doesn't give me anything interesting when I query for the signal information:
voxl2:/$ qmicli -d /dev/cdc-wdm0 --device-open-proxy --nas-get-signal-info
[/dev/cdc-wdm0] Successfully got signal info
Has anyone successfully retrieved the signal information from voxl?
Update:
I also tried the following from another post, but the 5G Sierra Wireless modem is not on ttyUSB2, so I am not sure how to address it.
echo -ne "AT+QENG=\"servingcell\"\r" | busybox microcom -t 1000 /dev/ttyUSB2
lsusb shows it is on bus 002, device 003.
voxl2:/dev/bus/usb/002$ lsusb
Bus 002 Device 003: ID 1199:90e3 Sierra Wireless, Inc.