AT10II Package List

* Direct Sequence Spread Spectrum transmissions multiply the data by a "noise" signal. This noise signal is a pseudorandom sequence of 1 and -1 at a frequency higher than that of the original signal.

* Frequency Hopping Spread Spectrum offers three main advantages: signals are highly resistant to narrowband interference, are difficult to intercept, and can share a frequency band with many types of conventional transmissions with minimal interference.

* Quadrature Phase Shift Keying transmits two information bits, combined as one symbol, for a stable transmission signal.