| Acronym | Meaning |
 | LDR | LowData Rate |
| RACS | Remote Automatic Calibration System |
| SPA | Signal Processor Assembly |
| PW | Pulse Width |
| OLF | Orbiter Landing Facility (now SLF) |
| CRT | Cathode-Ray Tube |
| FLCA | Forward Load Controller Assembly |
| CSE | Communications Systems Engineer |
| G | CCC Ground Control Computer Center |
| INSIDE | DiamInside Diameter |
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