The following frequency bands are in operation as described below: (Please refer to the design guide for details) 868/920MHz band: VCO oscillates at 1× frequency and PLL is set to 1× frequency. Rx/Tx route also used without frequency division. 426MHz band: VCO oscillates at double frequency and PLL is set to double frequency. Used through Rx/Tx route with 2 frequency division. 169MHz band: VCO oscillates at sixfold frequency and PLL is set to sixfold frequency setting. Used through Rx/Tx route with 6 frequency division.