| 摘要 |
The arrangement includes a first repeater (1) that receives an input (2) from a receiving antenna (3) for high-frequency signals from the base station, and an output (4) to a supply antenna (5). The incoming carrier frequency (F1) is transposed to another frequency (F3) for transmission to two further repeaters (8,9). These are similarly constituted and restore the incoming carrier frequency to its original value (F1) for corresponding groups of mobile stations. A similar transposition of frequencies takes place in the reverse direction, where the functions of receiving and supply antennas are interchanged. |
