The GEONETCast Americas (GNC-A) Guide: Equipment Specification, Component Identification and Selection Discussion, Version 2.2.0: June 11, 2014 (PDF), provides "...an overview of a GEONETCast Americas ground station, its components, and helpful discussion to relating the experience of those who have installed one or more stations in an operational setting." The document is also available in Spanish, English, Portuguese.
Important: Intelsat General intends to convert the existing DVB-S transmission channel on Intelsat-21 to the DVB-S2 (Digital Video Broadcasting – Satellite – Second Generation) format sometime in 2019. This change will require all users with DVB-S receivers to upgrade to DVB-S2 receivers. All users should check if their existing device is a DVB-S2 device. The reception will NOT work with a DVB-S device. If your device is compatible with DVB-S2 and you are successfully receiving the current service, then it will also work under DVB-S2.