70 centimeters
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70 Centimeters is a common ham radio band in the UHF spectrum. Although the exact usable frequency range varies regionally, the 70 centimeter band generally ranges from 430 to 450 MHz. Increasingly, 'local' radios are being produced for "dual band" use, meaning they are capable of operation on both 70 centimeters and 2 Meters. Curiously, most of these radios skip over the 220 MHz ham band.
Band Plan
Below is the ARRL band plan for the 70cm band:
420-450 MHz Band Plan
| 420.00 - 426.00 MHz | Amateur TV repeater or simplex, and experimental |
| 426.00 - 432.00 MHz | Amateur TV simplex |
| 432.00 - 432.07 MHz | CW EME (Moonbounce) |
| 432.07 - 432.10 MHz | Weak-signal CW |
| 432.10 MHz | 70-cm calling frequency |
| 432.10-432.30 | Mixed-mode and weak-signal |
| 432.30 - 432.40 MHz | Propagation beacons |
| 432.40 - 433.00 MHz | Mixed-mode and weak-signal |
| 433.00 - 435.00 MHz | Auxiliary/repeater links |
| 435.00 - 438.00 MHz | Satellite only (internationally) |
| 438.00 - 444.00 MHz | ATV repeater input and repeater links |
| 442.00 - 445.00 MHz | Repeater inputs and outputs (local option) |
| 445.00 - 447.00 MHz | Shared by auxiliary and control links, repeaters and simplex (local option) |
| 446.00 MHz | National simplex frequency |
| 447.00 - 450.00 MHz | Repeater inputs and outputs (local option) |