Project Channel assignments

3.3.3 RF channel frequency

The RF channel frequency determines the center of the channel used by the RF transceiver. The channel occupies a bandwidth of less than 1 MHz at 250kbps and 1Mbps and a bandwidth of less than 2 MHz at 2Mbps. The RF transceiver can operate on frequencies from 2.400 GHz to 2.525 GHz. The programming resolution of the RF channel frequency setting is 1 MHz.

At 2Mbps the channel occupies a bandwidth wider than the resolution of the RF channel frequency setting. To ensure non-overlapping channels in 2Mbps mode, the channel spacing must be 2 MHz or more. At 1Mbps and 250kbps the channel bandwidth is the same or lower than the resolution of the RF frequency.

The RF channel frequency is set by the RF_CH register according to the following formula:

F0= 2400 + RF_CH MHz