It calibrates in receiving and dispatching system of an organic whole to collect receiving and dispatching

The utility model belongs to airport air traffic control field, in particular to it calibrates in receiving and dispatching system of an organic whole to collect receiving and dispatching. The utilitymodel discloses a driving source, transmission preceding stage subassembly, the one or two select a switch, transmission final stage subassembly, first coupler, second coupler, duplexer, the two or two select a switch, receiver, the utility model discloses utilize the amphicheirality of first coupler and second coupler and two selected the switch isolation of a switch and the characteristics suchas frequency selection nature of duplexer, combine the application with above components and parts, guaranteed all to work at direct end at two couplers of receipt stage, receive the poor minimum ofdecreasing of main road, thereby guarantee the sensitivity of receipt, utilize the characteristics that the isolation is high of switch to guarantee the mutual noninterference of calibrating the signal reception signal effectiv