| Acronym | Meaning |
 | MIDI | Musical Instrument Digital Interface |
| HF | High Frequency |
| DRTS | Data Relay And Tracking Satellite |
| USAP | United States Antarctic Program |
| JAFNA | Joint Air Force NASA Facility |
| MSU | Microwave Sounding Unit |
| SMM | Solar Maximum Mission |
| DLA | Defense Logistics Agency |
| GATE | Global Atmospheric Research Programme Atlantic Tropical Experiment |
| UCAR | University Corporation For Atmospheric Research |
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