Somebody just asked me which frequencies you can use free of charge for communication. This is what I found out:
| Band | MHz | channels/mode | steps | power |
| CB-FM (Citizens Band) | 26.565 - 27.405 | 80 FM | 10 khz | 4 W |
| CB-AM | 26.965 - 27.135 | 12 AM | 10 khz | 1 W |
| FreeNet | 149.025 - 149.050 | 3 FM | 12.5 khz | 0.5 W |
| LPD | 433.075 - 433.755 | 69 FM | 10 khz | 0,01 W |
| PMR (Pocket Comm) | 446 | 8 FM | ? | 0,5 W |