| Acronym | Meaning |
| GCF | Ground Communications Facility |
| HZ | Hertz (Cycles Per Second) |
| RPP | Reinforced Pyrolytic Plastic |
| K | Kilocycle |
| CHG | Charge |
| SM | ESShuttle Mission Eng' |
| DCS | Data Communication System |
| GOR | GrGORGround Operations Review |
| F&E | Facility And Envii-onment |
| SF | Sliding Filter |