| 摘要 |
communication equipment. SUBSTANCE: user station transmits first communication signal, which carries information of first information signal, to second station, while user station receives second communication signal from second station and processes it in order to output second information signal. In addition, user set may establish communication to second station using multiple high- frequency channels in chosen RF range. One of said channels is chosen in communication between user station and second station by means of method which involves generation of base high- frequency signal, generation of digital IF signal so that combination of digital IF signal to base high-frequency signal produces carrier signal with frequency of high-frequency channel, which is chosen for communication. Thus, first communication signal is generated using both said base high-frequency signals and said digital IF signal for transmission using chosen high-frequency channel. EFFECT: decreased processing costs. 4 cl, 5 dwg, 2 tbl |
