| Acronym | Meaning |
 | DARPA | Defense Advanced Research Projects Agency |
| TRU | Test Replaceable (repairable) Unit |
| PMAR | Pma Ac Voltage Right |
| COMM/ID | Communication/identification |
| DISA | Defense Information Systems Agency |
| APC | Approach Power Compensator |
| RPC | Remote Procedure Call |
| TFR | Terrain Following Radar |
| GTV | Ground Test Vehicle |
| TOTS | Tower Operator Training System |
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