Spectrum Allocation

The cellular systems have been allocated a designated frequency spectrum
to operate within. Both the A-band and B-band operators are allowed to utilize
a total of 25 MHz of radio spectrum for their systems. The 25 MHz is
divided into 12.5 MHz of transmit frequencies and 12.5 MHz of receive frequencies
for each operator. The cellular spectrum is shown in Figure 2-11.

The spectrum chart shown in Figure 2-11 has the location of the A-band
and B-band cell sites transmit and receive the frequencies indicated. Currently,
a total of 832 individual FCC channels are available in the United
States. Each of the radio channels utilized in cellular are spaced at 30-kHz intervals with the transmit frequency operating at 45 MHz above the
receive frequency. Both the A-band and B-band operators have available to
them a total of 416 radio channels: 21 setup and 395 voice channels.