WIRELESS RELAY MONITORING APPARATUS

摘要

PURPOSE: A wireless relay monitoring apparatus for watching a communications state between users while eliminating the returning table reverse according to the frequency redistribution is provided to improve productivity, the reliability and durability by eliminating a band rejection filter. CONSTITUTION: A first diplexer(30) and a second diplexer(40) are installed between a BS(Base Station)(10) and a wireless terminal(20). The first diplexer and the second diplexer transfer 3G(three generation) signal and 2G(two generation) signal without interference to bidirectional. A coupler transfers 3G signal and 2G signal passing through the second diplexer to a monitor. A band rejection filter eliminates the return band among the first diplexer and 2G signal passing through the second diplexer. The band rejection filter passes through the rest band.