| 342 / | HD | COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) |
| 175 | | WITH PARTICULAR CIRCUIT {13} |
| 176 | DF | .~> Display {9} |
| 187 | DF | .~> Augmenter |
| 188 | DF | .~> With polarization |
| 189 | DF | .~> For correlation |
| 190 | DF | .~> With recording {1} |
| 192 | DF | .~> Spectrum analysis {1} |
| 194 | DF | .~> Complex signal (in phase and quadrature) |
| 195 | DF | .~> Digital processing {2} |
| 198 | DF | .~> For receiver protection |
| 199 | DF | .~> Automatic frequency control (AFC) |
| 200 | DF | .~> For frequency modulation {1} |
| 202 | DF | .~> For pulse modulation {2} |
| 205 | DF | .~> Sensitivity time control (STC) |