中国新通信
中國新通信
중국신통신
CHINA NEW TELECOMMUNICATIONS
2010年
5期
74-76
,共3页
高频头%选择%数字卫星设备控制
高頻頭%選擇%數字衛星設備控製
고빈두%선택%수자위성설비공제
high-frequency head%selection%digital satellite equipment control
为保证广播节目信号接收质量,本文通过对高频头的组成和对增益、噪声、输入输出阻抗、本振频率、电压驻波比等几个重要特性参数的讨论,阐述了高频头的选择,并简单介绍了高频头的日常维护。
為保證廣播節目信號接收質量,本文通過對高頻頭的組成和對增益、譟聲、輸入輸齣阻抗、本振頻率、電壓駐波比等幾箇重要特性參數的討論,闡述瞭高頻頭的選擇,併簡單介紹瞭高頻頭的日常維護。
위보증엄파절목신호접수질량,본문통과대고빈두적조성화대증익、조성、수입수출조항、본진빈솔、전압주파비등궤개중요특성삼수적토론,천술료고빈두적선택,병간단개소료고빈두적일상유호。
High-frequency head is important for the quality of radio program.In this article,we briefly discuss the composition of high-frequency head and several crucial parameter including conversion gain,noise,Input and output impedance,L.O.frequency and voltage standing wave ratio(VSWR).In addition,we introduce the selection and daily maintenance and high-frequency head.