| Acronym | Meaning |
 | ITS/OT | Institute For Telecommunications |
| JMA | Japan Meteorological Agency |
| NSC | Network Systems Corporation |
| AFI | Atomic Industrial Forum |
| ATDRSS | Advanced TDRSS |
| IUGG | International Union Of Geodesy And Geophysics |
| AGT | Advanced Ground Transport |
| OSIS | Office Of Scientific Information Service |
| UQAM | Universite De Quebec A Montreal |
| SCO | Subcarrier Oscillators |
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