| Acronym | Meaning |
| CCA | Circuit Card Assembly |
| NVIS | Near Vertical Incident Skywave |
| PDD | Program Design Description |
| WCA | Warning/caution/advisory |
| AP | Acquisition Plan |
| PPP | Personnel Performance Profile |
| SPP | Sponsor Program Proposal |
| MGOT | Measured Gas Overtemperature |
| CCS | Command And Control System |
| OTPI | On Top Position Indicator |