RF Front-End (Antenna/ADC/DAC), Digital Signal Processing unit (GPP, FPGA, or DSP), and the software/firmware. Key Advantages:
Easily upgradable to new technologies via software updates.
This report provides an overview of and the Software Communications Architecture (SCA) , which originated from the U.S. Department of Defense Joint Tactical Radio System (JTRS) program. 1. Executive Summary