sri, summation research, satellite, satellite communications, telemetry, commanding, ranging, launch range, afscn, satcom, ground systems, ground station, satellite test, satellite integration, antenna, receiver, demodulator, frame synchronizer, bit synchronizer, bit-sync, frame-sync, modulator, command formatter, upconverter, downconverter, decommutation, sgls, ccsds, sle, usb, data archiving, front-end, gateway, baseband, if, rf, dsp, tdrss, tao, air force, nro, nasa, uqpsk, aqpsk, shaped qpsk, sqpsk, offest qpsk, oqpsk, staggered qpsk, shaped offset qpsk, soqpsk, qpsk, bpsk, pcm, fm, am, fsk, pm/psk, phase modulation, subcarrier, am/fsk, land mobile radio, sensors, wireless sensors, zigbee, automated test equipment

summation research, inc. (sri) is an engineering and manufacturing company providing high performance data acquisition, telemetry, and communication products and systems to defense, government and commercial satellite, land mobile, and test and measurement markets worldwide.