This Extra/Secondary "Rocket Unit" Transmitter works with the "Navigator" RTx/GPS systems. We've setup our XBee Radio Networking to operate using a Multicast "Many-to-One" method, so when you purchase this we'll marry it up with your assigned Network ID. This "Many-to-One" multicast communication requires that you operate ONLY ONE ROCKET UNIT AT A TIME,

The RTx/GPS Rocket Unit communicates to a Base Unit using the license free 900 MHz ISM radio band (902-928 MHz). The radio modules employ a proprietary FHSS (Frequency Hopping Spread Spectrum) technology and also operate with a proprietary networking feature which provides virtual interference free communications. Radio configuration and Radio Network ID's are also managed by us allowing you to "buy and fly" without concern over crossed signals and shared frequencies.

To learn more about the RTx/GPS system, please download and read through the User Manual. You'll find all the particulars regarding features, sample LCD screens, usage tips and operations, etc:

EDGE MOUNTED GPS with ANTENNA OPTIONS

FLUSH MOUNTED GPS with ANTENNA OPTIONS