Re: phones...radio frequency...include 3G, 4G, Wi-Fi, Bluetooth, GPS, and NFC
"Put a spectrum analyzer on it, and you see a 5 MHz BW rated device using 12MHz..."
Any bandwidth spec requires a -dBc amplitude (at the bandwidth edges) to go along with it.
E.g. -3.0 dBc, or -60 dBc.
Else it's meaningless.
Biting the hand that feeds IT
