| Acronym | Meaning |
| PCU | Process Control Unit |
| M | Male |
| FTS | Federal Telecommunications System |
| GPS | Global Positioning Satellite |
| HE | Helium |
| MAXCO | Maximum Dynamic Pressure |
| DC | DCADefense Communication Agency |
| JSC | Johnson Space Center |
| ERP | Effective Radiation Power |
| OVCO | Operational Voice Communication Office |