RE: most used freq chart?
I'm not sure the bell curve for frequency selection is entirely due to the laws of probabilty. Could it be that the radio manufacturers produce & ship more radios with certain frequencies? After all, if JR/Futaba/Airtronics made approximately the same quantity of radios in each frequency then the distribution in the field should mimic this production. It is more likely that the manufacturers produce more radios in the middle frequencies because thats what consumers request. If you get a radio with a module then you can always change.