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was established under the auspices of SRI in the San Francisco Bay Area, with BBN contributing network technology and Collins creating the Experimental Packet Radios (EPRs), which implemented L-band spread-spectrum waveforms and supported half-duplex communications at 100 or 400 kilobits/second. There was also a smaller network at BBN, for software development and testing. The first packet radios were delivered in mid-1975 for initial testing and a quasi-operational network capability was established for the first time in September 1976, shortly

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