Just as a side note - after working at an RF Networking company for 10+ years, the phrase "bandwidth" (which in RF, is literally the "width of the band", e.g. 2

Just as a side note - after working at an RF Networking company for 10+ years, the phrase "bandwidth" (which in RF, is literally the "width of the band", e.g. 200 kHz ) is endlessly confusing, particularly when you hear engineers use phrases like, "we've got more bandwidth resulting in greater range but lower data rate with this signaling scheme." The RF PHY/MAC engineers use data rate, and bandwidth 100% consistently, and everyone else I've ever met, uses "bandwidth" as a synonym for "data rate" - I'm surprised there isn't more confusion between the two groups of people. At least all groups measures data rate and "bandwidth" with megabits/sec == 1x10e6 bits/second. Thankfully that confusion never entered the data comms world.