| Abbreviation | Definition |
|---|---|
| DM | Delta Modulation |
| DMR | Differential Microwave Radiometer |
| DMR | Digital Media Receiver |
| DMRAA | Des Moines Radio Amateur Association |
| DMX | De-MultipleXer |
| DNA | Did Not Answer |
| DOE | Dynamic Output Element |
| DoubleNickle | Fifty-five |
| DPSK | Differential Phase-Shift Keying |
| DRA | Delaware Repeater Association |
| DRCS | Davenport Radio Control Society |
| DRZIFVN | Deine radio zignal ist funf von neun |
| DS | Digital Service |
| DSBFC | Double Sideband Full Carrier |
| DSBSC | Double Sideband Suppressed Carrier |
| DSZZ | Dual Single-channel Zig-Zag Antenna |
| DTRS | Digital Trunked Radio System |
| DTX | Discontinuous Transmission |
| DX-1 | Long Distance radio contact |
| DZZ | Dual Zig-Zag Antenna |