| 342 / | HD | COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION) |
| 350 | DF | DIRECTIVE {10} |
| 352 | ![]() | .~ Including a satellite {6} |
| 353 | DF | .~.~> Having a signal repeater |
| 354 | DF | .~.~> With beam steering |
| 355 | DF | .~.~> With control of satellite altitude |
| 356 | DF | .~.~> Synchronous satellite |
| 357.01 | DF | .~.~> With position indicating {5} |
| 358 | DF | .~.~> With satellite signal correction |