3g 850 using radio frequencies to transmit in the frequency range 824-849 mhz pin 869-894 mhz So bandwidht Wave 850 = 25 mhz both transmit and receive.
3G used the wave uses the 850 frequency range 824 on legs-849 MHZ and 869 receiving output frequency constant-894 MHz so 850 MHz 25 = wave bandwidht both sending and receiving.
3 use the G wave 850 will be used to stand in the frequency range 824 - 849 MHZ leg and the frequency is 869 - 894 MHz bandwidht of the waves, so 850 = 25 MHz sending and receiving