Radio communication apparatus includes a baseband processor for modulating
data to be transmitted into an IF signal and for demodulating an IF signal derived
from a received high frequency signal. A front end section receives the IF signal
from the baseband processor and converts that IF signal into a high frequency signal
for transmission. The front end section also is adapted to receive a high frequency
signal from a remote location, and converts the received high frequency signal
into an IF signal that is supplied to the baseband processor for demodulation and
data recovery. The front end section is operable in a plurality of frequency bands
and is tunable to a frequency within a selected one of the frequency bands for
use as a radio frequency channel. Consequently, the number of simultaneously assigned
channels in the same area can be markedly increased and the possibility of interrupting
a communication link is significantly reduced.