This is on sort of a tangent to the orignal question but I remember how so many posting in this forum were so excited that 2.4 was going to be their radio installation salvation when the spectrum was opened up. Oh the speculation that was running rampant back then, and the vociferous arguement that was received when anyone offered any disagreement with those positions. Radios would no longer be impacted by ignition generated EMI. 2.4 was "immune" from interference.

Funny how each frequency type or spread has carried with it the same delusions. Happened with AM, then FM, followed once again by 2.4. Probably be viewed the same with 5.8 if and when things go that way.