| 摘要 |
An apparatus and method for selecting a number of cellular radio channels to be boosted in a given geographic area provides either F1-F1 or F1-F2 operation. The signals can be boosted at the same frequency with input to output isolation being achieved by the use of directive transmit and receive antennas (18, 20) physically positioned to achieve sufficient isolation. Each signal is individually filtered, amplified and recombined for transmission. Any number of signals may be accommodated depending upon the number of retransmission channels available. Apparatus is also provided to retransmit a signal at a different frequency from that at which it is received. |
