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旧 Feb 17th, 2010, 10:19     #1
onetwo
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默认 用hd天线想加个放大器

现在的HD天线收加拿大的台还好,但收美国的台就不行了,用放大器有没有用了? 特别是想懒点,不想爬到楼顶,找个接在电视前的那种有么?
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旧 Feb 17th, 2010, 10:38   只看该作者   #2
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默认

我觉得没用,顶多增加两三个台,地点和高度远比放大器重要。我住8楼,用铁丝自制的破天线可以收25个数字台,2楼有一家伙用带放大器的高级天线也只能收到十四五个台。
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旧 Feb 17th, 2010, 10:41   只看该作者   #3
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默认

加拿大的台在CN塔,美国的从Buffalo来,方向不一样。信号取决于高度和方向,放大器作用不大。
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旧 Feb 17th, 2010, 11:15   只看该作者   #4
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默认

放大器最好放在靠天线的地方。
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旧 Feb 17th, 2010, 11:26   只看该作者   #5
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默认 如果不算模拟台和数字重复的,到底一共可以收到多少台?

现在买了一个廉价的天线,仅放在室内能收到13到15个台
不知道到底漏过了什么好的台。谁能讲一下
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旧 Feb 17th, 2010, 11:30   只看该作者   #6
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默认

我的很有用。我也是懒得爬屋顶,只挂在屋檐下(约2米高),走线也比较长,先到地下室,然后分到各房间。
原来根据天气情况收2-4个数字台,加上室外天线放大器(电源部分在室内)后,现在稳定接收8个CN TOWER的数字台。不过BUFFLO还是收不到。
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作者: onetwo 查看帖子
现在的HD天线收加拿大的台还好,但收美国的台就不行了,用放大器有没有用了? 特别是想懒点,不想爬到楼顶,找个接在电视前的那种有么?
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旧 Feb 17th, 2010, 11:46   只看该作者   #7
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默认

方向更重要, 所以要两个天线,一个指向cn tower, 一个老美
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旧 Feb 17th, 2010, 12:46   只看该作者   #8
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默认

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作者: nolater 查看帖子
现在买了一个廉价的天线,仅放在室内能收到13到15个台
不知道到底漏过了什么好的台。谁能讲一下
收到多少个台跟你的地理位置关系很大。必须放室外才好,能收到20多个台(以前关于天线的贴都有)。天线放大器也是放在靠近天线才有效果。作用是减低了长的电缆馈线对信号衰减。
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旧 Feb 17th, 2010, 17:48   只看该作者   #9
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默认

谢谢各位,看来还是先不作考虑了。
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