ORIGINAL: dbspl
the 2.4 GHz band is 85 MHz wide; you would think that if the 2.4 band were split up into dedicated frequencies (like 72), then the number of dedicated aircraft frequencies the 2.4 band could support would be aroud 4,250.
You have a range from 2400Mhz to 2483.5Mhz in 1Mhz increments. That is 83 1Mhz bands(channels).