| 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 |