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旧 Dec 5th, 2007, 08:04     #1
erguotou
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作者: f225 查看帖子
多谢楼上几位了,那我就不费那劲了。

还有个问题,如果119/118.7的LNB放中间,再加两个LNB收110和129,象这个照片里的那样,他们和中间那个LNB的距离是多少啊?有什么公式能算出来吗?
[IMG]http://i1.tinypic.com/7x9pekp.jpg[/IM]
LNB位置间距 = LNB头部到锅弧顶距离 x tan(卫星角度差/2), or

= LNB头部到锅弧顶距离 x 卫星角度差 x 3.14/ 360

例如,若从lnb头到锅弧顶距离为50cm,110与119差9度,
间距 = 50*tan(9/2) = 3.9cm
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旧 Dec 5th, 2007, 13:20     #2
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作者: ym416 查看帖子
Any one know where can I find the bin, or send the bin to me, thanks,
#62 帖,或者去

dssrookie.com
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旧 Dec 5th, 2007, 13:34     #3
erguotou
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作者: galaha 查看帖子
.
是不是121要停了? - end of this year
现在118.75上的节目怎么样了,很全?是不是121上的中文节目都到了118.75上了? -yes

如果要转到118.75上面,我目前接受121,锅最好动,但是可以不动吗?我还挂着其他的高频头呢。 - sure, you do not have to move the dish but just move the lnb to new place and try to fix it in place. approx. 2cm left (face to dish) and 0.5cm lower

这个118.75是不是就是119?如果不是119,那么,和119用的头一样吗? -no. you may modify a 119 lnb to a 118.7 lnb yourself by placing a plastic plate in it, see those posts in previous pages in this thread.
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旧 Dec 5th, 2007, 15:16     #4
erguotou
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作者: galaha 查看帖子
如果放在121LNB的架子上是不行的?
c...
不行,位置稍差了点。要么动锅,要么动头

买现成的或改装都只用一个头一个输出就可以同时收119和118。7,现成的像CB2008,也不贵。改也很容易,打开盖,插进塑料片并放置角度合适就好了。详情见此:
http://www.chinasmile.net/forums/sho...59&postcount=3
不过,晕不拍的照片不太清楚,关键最后一张。前两天有人贴过一个很清楚的,我找不到在哪。我自己还没开始动手。
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