What are the differences between 900 MHz and 2.4 GHz radios?
Though both frequency ranges are in the unlicensed Industrial, Scientific, and Medical (ISM) bands, there are performance differences between the two ranges. Radios using 900 MHz typically have a greater range and a greater ability to penetrate obstacles, making 900 MHz a better solution for industrial environments. Radios using 2.4 GHz can transmit data packets faster and at a lower tramission rating so the radios require less power to transmit the same size data packet. North America typically uses 900 MHz while 2.4 GHz is used globally.
