Cull LTE notes into an unsupported document that can help with remixes

docs/lte.md

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+# LTE Modem
+
+Please Note: **THIS IS AN UNSUPPORTED CONFIG**. We are providing notes for others who may need/want LTE setups but you will need to do your own testing and stability tuning.
+
+The below assumes [ting](https://ting.com) as the carrier. You'll need to hunt down your own carriers settings.
+
+## Hardware
+
+Hardware we have used / tested in the past.
+
+* [GNSS, GLONASS, Galileo, Beidou Antenna](https://www.mouser.com/ProductDetail/673-GPSMOD1333)
+* [Quectel EC25](https://www.quectel.com/product/ec25minipcie.htm)
+* [sixfab Raspberry Pi LTE Base Hat](https://sixfab.com/product/raspberry-pi-base-hat-3g-4g-lte-minipcie-cards/)
+* [SMA antenna pigtails](https://www.mouser.com/ProductDetail/960-CAB011)
+* [LTE blade antennas](https://www.mouser.com/ProductDetail/237-SREL036-S9P)
+* [RAK Quectel BG96 IoT LTE Modem](https://store.rakwireless.com/products/rak8213-nb-iot-bg96)
+* [RAK IoT LTE Modem Raspberry Pi Hat](https://store.rakwireless.com/products/rak8213-pi-hat)
+* [PulseLarsen LTE Sticker Antenna](https://www.mouser.com/ProductDetail/673-W6112B0100)
+
+## Setup / Configuration
+
+``` sh
+
+apt update
+apt install -y modemmanager
+mmcli -S
+mmcli -L
+mmcli -m 0 # Note the IMEI number (needed for ting activation)
+mmcli -i 0 # Note the iccid (needed for ting activation)
+mmcli -m 0 -e
+
+# Additional reference : https://help.ting.com/hc/en-us/articles/205428698-GSM-Android-APN-setup-guide
+
+nmcli c add con-name "ting" type gsm ifname "*" apn "wholesale"
+nmcli c mod ting connection.autoconnect yes
+
+
+mmcli -m 0 --location-status
+mmcli -m 0 --location-enable-3gpp
+mmcli -m 0 --location-enable-gps-nmea
+mmcli -m 0 --location-get
+
+```