Patent ID: 7123939

Claim:
An attenuation compensation system for use in a base station having a mast head unit remotely connected to ground-based equipment by a cable, whereby a signal sent from said ground-based equipment to said mast head unit experiences attenuation, the system comprising: at said ground-based equipment ( 300 ): a first power level detector ( 402 ) coupled to a transmit signal line for outputting a first power level signal; a compensation attenuator ( 401 ) coupled to the transmit signal line; at least one controller for controlling the compensation attenuator ( 401 ); and at said mast head unit ( 320 ): a second power level detector ( 403 ) coupled to the transmit signal line for outputting a second power level signal, said second power level detector having means for transmitting the second power level signal to said ground-based equipment; said second power level signal being based upon the amount of said attenuation; whereby said controller ( 301 ) compares said first and second power level signals and controls the compensation attenuator ( 401 ) accordingly.