Patent ID: 6804498
Filing Date: 2004-10-12
Classification: H04W

Abstract:
A method for influencing a level of a radio-frequency transmitted signal, the method comprising the steps of:passing the transmitted signal to a transmitting/receiving unit; measuring the level of the transmitted signal in the transmitting/receiving unit; transmitting the transmitted signal from the transmitting/receiving unit via a cable to an antenna transmitting/receiving unit which is connected to an antenna; amplifying the transmitted signal in the antenna transmitting/receiving unit and measuring the level of the transmitted signal in the antenna transmitting/receiving unit both before and after amplification; determining a first level difference between the level of the transmitted signal in the transmitting/receiving unit and the level of the transmitted signal in the antenna transmitting/receiving unit before amplification; determining a second level difference between the level of the transmitted signal in the antenna transmitting/receiving unit before amplification and the level of the transmitted signal in the antenna transmitting/receiving unit after amplification; using the first and second level differences to determine an overall gain; comparing the overall gain with a predetermined level difference; and influencing the level of the transmitted signal such that the overall gain is maintained approximately at the predetermined level difference.