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本文介绍一种小型电波监测天线系统,其特点是结构简单、性能优良、操作方便、经济实用。一付天线可供四部不同频段的接收机工作,保证每部接收机单路工作、互不干扰,亦可收发共用。在任何一部接收机工作的情况下,都可随意控制天线转动、转向,一旦发现异常情况,如私设电台、乱用频率和其它无线电信号以及谈论与工作无关的事情、尤其是明密混用、泄漏国家机密等等,可立即停转、自锁,并据遥控装置面板上指示的方位进行呼叫查询。系统的主要性能指标1 工作频率:f=100—1000MHz2 天线增益:G>8dB3 输入阻抗:Z_(in)=50Ω4 驻波比:V.S.W.R<25 极化方式:垂直(或水平)
This article describes a small radio monitoring antenna system, which is characterized by simple structure, excellent performance, easy operation, economical and practical. An antenna for four different frequency band receiver work to ensure that each receiver work alone, without disturbing each other, but also send and receive. In the case of any receiver work, can control the antenna rotation, steering, once found unusual circumstances, such as private radio stations, arbitrary frequency and other radio signals and talk about things unrelated to the work, especially the mix, Leak state secrets, etc., can be immediately stopped, self-locking, and according to the direction of the remote control panel instructions for call inquiries. Main performance index of the system 1 Operating frequency: f = 100-1000MHz2 Antenna gain: G> 8dB3 Input impedance: Z_ (in) = 50Ω4 VSWR: V.S.W.R <25 Polarization: Vertical (or horizontal)