ctcss

Analysis of Mechanism of CTCSS Modulation

CTCSS调制机理的分析

Variable audio CTCSS : can temporarily change the channel has been set CTCSS frequency .

可变音频的CTCSS：可以暂时改变各信道上已经设置的CTCSS频率。

But if CTCSS is being utilized and both systems use different CTCSS tones , they will not have to listen to the other system 's traffic .

但如果CTCSS在2套系统中同时被应用，并设置了不同的亚音频，则他们就不会互相听到对方系统的通讯了。

Others use CTCSS to keep all but subscribing members off the repeater . Guidelines for administrative , medical , and nursing staff concerned with the safe use of medical electrical equipment

管理、医疗、护理人员安全使用医用电气设备导则

Most handheld radios that can be factory equipped for full CTCSS encode and decode have a monitor button , usually around the PTT bar .

大多数手持电台在制造中装备了全部CTCSS编译及解译功能，并在PPT按键附近具备了“监听”按键。

In addition to geographical separation , the " continuous tone-coded squelch system "( CTCSS ), sometimes nicknamed " private line "( PL ), technology can be used to mitigate interference problems .

除了间隔上的隔离，“持续音频编码静噪系统”（CTCSS，普通昵称“专用线路”）能够缓解中继器的干预问题。

The influences of the constancy of base station transmitted frequencies , the amplitude-frequency and the phase-frequency characteristic differences of modulating signal and the CTCSS signal on the simulcast system are also analyzed and detailed specification and realization method are also given to those factors .

对基站发射频率的一致性、调制信号的幅频特性、相频特性的差异以及CTCSS信号对同播系统的影响进行了分析，并对这些影响因数给出了具体的指标要求及实现方法。