| Acronym | Meaning |
| TU | Technology Utilization |
| NEC | National Electrical Code |
| SPA | Signal Processor Assembly |
| NAP | Navigation Analysis Program |
| DB | Dry Bulb |
| TPM | 1Terminal Phase Midcourse #1 |
| VHF/AM | Very High Frequency Amplitude Modulator |
| HSD | HoriZontal Situation Display |
| PC | Pulsating Current |
| UPS | Uninterruptible Power System |