Datasheet

Antenna ports

Up top is the place where you can plug in your GSM antenna. An antenna is required to use the module for any kind

of voice or data communications as well as some SIM commands!

You can either use a uFL GSM antenna like this (https://adafru.it/fbL), or use a uFL to SMA adapter (https://adafru.it/fbM)

and then an SMA antenna (https://adafru.it/fbN)

On the right is a GPS antenna port. This is for a passive 50 ohm GPS antenna only!