IEEE 802.15.4 defines 16 channels in the 2450 MHz frequency band. The channels are numbered from 11 to 26, each with a width of 5 MHz.
To choose the correct channel center frequency, the FREQUENCY register must be programmed according to the following table.
| IEEE 802.15.4 channel | Center frequency (MHz) | FREQUENCY setting |
|---|---|---|
| Channel 11 | 2405 | 5 |
| Channel 12 | 2410 | 10 |
| Channel 13 | 2415 | 15 |
| Channel 14 | 2420 | 20 |
| Channel 15 | 2425 | 25 |
| Channel 16 | 2430 | 30 |
| Channel 17 | 2435 | 35 |
| Channel 18 | 2440 | 40 |
| Channel 19 | 2445 | 45 |
| Channel 20 | 2450 | 50 |
| Channel 21 | 2455 | 55 |
| Channel 22 | 2460 | 60 |
| Channel 23 | 2465 | 65 |
| Channel 24 | 2470 | 70 |
| Channel 25 | 2475 | 75 |
| Channel 26 | 2480 | 80 |