| 摘要 |
PURPOSE:To attain excellent installation performance and to reduce power loss by housing a high output amplifier device and a transmission frequency converter into an exclusive casing independently of a radio shelter respectively. CONSTITUTION:The high output amplifier device 4 having the largest heat is accommodated in an exclusive casing 9 independently of a radio shelter 7 and a casing 8 accommodating a transmission frequency converter 3, a reception frequency converter 6 and a low noise amplifier 5 with less heat. Then a heat sink fin or an air-conditioner or the like is housed in the exclusive casing 9 to cool sufficiently only the high output amplifier device 4 without being effected by external air. Thus, the radio shelter 7 and the exclusive casing 9 are not made large in the size and the radio shelter 7 and the exclusive casing 9 are arranged in the vicinity of an antenna 1 and the connection waveguide length from the high output amplifier device 4 till the antenna 1 is reduced. |
