1. Circuit arrangement for compensating for signal attenuation during the transmission of transmission signals of a mobile communications device, comprising:a signal line having at least one signal path,
an adjustable input signal level amplifying apparatus which has at least one amplifier for amplifying the detected input signals or input signal level,
a detector apparatus which is designed to detect the associated input signal level in the circuit arrangement with respect to the transmission signals,
an adjustment or control apparatus for adjusting an amplification of the input signals or input signal levels carried out by the amplifier,
the detector apparatus being connected to the adjustment or control apparatus,
the detector apparatus and/or the adjustment or control apparatus being designed in such a manner that
a) the at least one amplifier is switched out of the signal transmission path or is deenergized, or the amplifier does not amplify, attenuate or forward the transmission signal unless a received signal level is detected which is greater than or equal to the input signal detection level (SEP) or greater than or equal to a trigger level (SAP) which is at most 10 dB greater than said detection level,
b) the amplifier is operated at a variable amplification factor in an adjustment range (X1) which begins at a lower input signal detection level (SEP) or a trigger level (SAP) which is at most 10 dB above the input signal detection level (SEP), and extends to cover higher signal levels than these, wherein, if the input signal detection level (SEP) is reached or exceeded, or the trigger level (SAP) is reached or exceeded, the input signal is either non-amplified or is attenuated at an amplification factor?1.