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七、卫星电视接收中应了解的几个问题在卫星电视接收中我们会遇到这些问题,例如:有的卫视信号很容易接收(如:亚洲2号、亚洲3S和亚太1A的数、模信号),而有的星接收起来并不容易(如88°E的中新1号Ku波段),甚至费了很多时间进行接收,即一无所获,直到寻星失败。这是什么原因呢?只要通过分析卫星所在经度、下行频率、极化波方向、波束、功率和接收点经纬度等就可知其中原由。 (一)卫星电视信号的接收点经纬度与卫星所在经
Seven, satellite TV reception should be aware of several issues in satellite TV reception we encounter these problems, for example: Some satellite TV signals are easily received (such as: Asia 2, Asia 3S and Asia-Pacific 1A number, mode signal ), And some stars are not easy to receive (such as the 88 ° E China New Zealand 1 Ku band), and even took a lot of time to receive, that is, nothing until the star failed. What is the reason for this? As long as the analysis of satellite longitude, downlink frequency, polarization direction, beam, power and receiving latitude and longitude, etc. can be found in the reasons. (A) satellite television signal receiving point latitude and longitude and satellite by