CELLULAR ANTENNA
The standard cellular antenna included with the kit usually works fine, but if you live in a remote area or want the best chance for connectivity, a 9' wired antenna that you can mount with more exposure to the sky may be preferred.
 
The puck is 3.3" in diameter and 0.6" in height.
 
If you don't want to upgrade now, you can always upgrade later through TheVanTracker.com or on other sites like Amazon.  Be sure to choose "SMA" for the connector type.