According to this document:<br><a href="http://www.termeszetvilaga.hu/radiokapcsolat/ariss_leiras_angol.pdf">http://www.termeszetvilaga.hu/radiokapcsolat/ariss_leiras_angol.pdf</a><br><br>There were several modifications made to the D700 on the ISS, one of the had to do with the firmware and packet operations. The specifics of the firmware changes were not discussed that I recall.<br>
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