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卫星切换技术
铱动科技 类型：转载
日期：2008/4/18
责任编辑：蔡怡俊
Õ=
55;星切换技术
=
8129;动科技
类型：&#=
36716;载 日期：2008/4/18 责任编辑：蔡怡俊
22K开关是脉冲&=
#20449;号开关,0信号和22K=
信号,虽然可以控制ߐ=
4;路以上,但似乎最多也ߎ=
1;会有Diseqc那么多.
Diseqc开关使ī=
92;Diseqc协议,=
9;一种数字开关，具有&=
#23436;全的数字控制特性,可以控制很多ั=
5;.
13/18V开关是Ç=
68;个继电输出开关，也=
可以实现2切一,但=
3454;现多路起来很困难.
所以,如果需要切换很ä=
10;很多路，同时利用这=
么几类开关，比如6切1的Diseqc和4切1的22K接在一起，你就=
可以切换一共6*4=3D24个降频器的信=
;号了.
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