To Handle Multiple Conversations in Radio Transmission,you Use Multiple ________. A)channels B)frequencies C)service

A channel extends from 55 MHz to 60 MHz.Its bandwidth is ________. A)60 MHz B)55 MHz C)65 MHz D)none of the above

To transmit very rapidly in RADIO,you need ________. A)single-frequency transmission B)single-mode transmission C)wide bandwidth D)narrow bandwidth