A femtocell telecommunication system equipment comprising: a base apparatus structured to perform modulation/demodulation, coding/decoding and to provide a first information signal and control signals (304, 303); a transmission line including a transmission electrical conductor connected to said base apparatus; a bidirectional conversion apparatus connected to the transmission line and adapted to be connected to an antenna device, the bidirectional conversion apparatus being adapted to receive/transmit from/on the transmission line the first information signal and the control signals (304, 303) and being external and remotely located with respect to the base apparatus and including: a tunable processing module (401-423,425-440, structured to: - perform frequency translation and power shaping of the first information signal to obtain a second information signal and viceversa; the tunable processing module being configured to transmit/receive the second information signal toward/from the antenna device and perform the frequency translation so as that: the second information signal shows a corresponding frequency allocation higher than a frequency allocation of the first information signal and a corresponding bandwidth equal to a bandwidth of the first information signal; a control unit adapted to receive the control signals (303,304) from said remote base apparatus on said transmission line and send to the tunable processing module corresponding configuration signals setting operating behaviour of the tunable processing module. a base apparatus structured to perform modulation/demodulation, coding/decoding and to provide a first information signal and control signals (304, 303); a transmission line including a transmission electrical conductor connected to said base apparatus; a bidirectional conversion apparatus connected to the transmission line and adapted to be connected to an antenna device, the bidirectional conversion apparatus being adapted to receive/transmit from/on the transmission line the first information signal and the control signals (304, 303) and being external and remotely located with respect to the base apparatus and including: a tunable processing module (401-423,425-440, structured to: - perform frequency translation and power shaping of the first information signal to obtain a second information signal and viceversa; the tunable processing module being configured to transmit/receive the second information signal toward/from the antenna device and perform the frequency translation so as that: the second information signal shows a corresponding frequency allocation higher than a frequency allocation of the first information signal and a corresponding bandwidth equal to a bandwidth of the first information signal; a control unit adapted to receive the control signals (303,304) from said remote base apparatus on said transmission line and send to the tunable processing module corresponding configuration signals setting operating behaviour of the tunable processing module. a tunable processing module (401-423,425-440, structured to: - perform frequency translation and power shaping of the first information signal to obtain a second information signal and viceversa; the tunable processing module being configured to transmit/receive the second information signal toward/from the antenna device and perform the frequency translation so as that: the second information signal shows a corresponding frequency allocation higher than a frequency allocation of the first information signal and a corresponding bandwidth equal to a bandwidth of the first information signal; a control unit adapted to receive the control signals (303,304) from said remote base apparatus on said transmission line and send to the tunable processing module corresponding configuration signals setting operating behaviour of the tunable processing module. - perform frequency translation and power shaping of the first information signal to obtain a second information signal and viceversa; the tunable processing module being configured to transmit/receive the second information signal toward/from the antenna device and perform the frequency translation so as that: the second information signal shows a corresponding frequency allocation higher than a frequency allocation of the first information signal and a corresponding bandwidth equal to a bandwidth of the first information signal; a control unit adapted to receive the control signals (303,304) from said remote base apparatus on said transmission line and send to the tunable processing module corresponding configuration signals setting operating behaviour of the tunable processing module.