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[电脑] 省钱才是王道!高清电视天线DIY

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41#
发表于 2009-6-11 19:53 | 只看该作者
找个小方木棍,随便做了一个,用一根一头破开的电视电缆连接天线,另一头带的接头接上电视机,连UHF-VHF转换器也免了。效果出乎意料的好。关键是要安放在室外阳台上,如加个cable amplifier 信号更稳定。多谢楼上的介绍。
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42#
发表于 2009-6-11 20:49 | 只看该作者
我也住BEACONSFIELD, 买了个所谓的好天线, 花了我90多。
http://www.microinformatique.ca/ ... lus_e.asp?SKU=22542

我把天线装在烟囱上,可一个HD 频道也没收到过,连CTV等模拟信号都不行。也懒得弄了。

我家周围全是树,是不是对接收有影响。
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43#
发表于 2009-6-12 11:49 | 只看该作者
Here is my tips to get Digital channel:

1. Antenna set up:  you can check US station at following link:

http://www.fcc.gov/mb/engineering/maps/

By inputing your address, you can get which station is available in your location. you can  drag the red mark to exact where the antenna is(using satellite map), and click stationon on the list,  it  will give direction. you can check If  trees block it or not. But you should have some kind of signal for a good antanna. channel 5-1,  and 57-1 should be ok at west island.

You can add a signal amplifier(booster) if the cable is long and signal is weak.
   

2. Check input: antenna connect to DTV input, make sure TV input is Air, local, or antenna, not Cable.

3. Search Channel:
If every thing is ok, signal is strong enough, you can automatical program,scan, search, add, or setup DTV(different name for

different TV brand). Save it before exit.

If signal is not strong enough or it is a indoor antenna, you had better to manual program, setup, scan, search or add channels.  Since by reading the signal strength or SNR(signal noise ratio) on  signal meter, you know which direction, locaton is good for which  channel. You can add channel one by one by adjust antenna.

Following is channel list in Montreal region:

13, (22-1, 22-2), WVNY  (ABC)
14,(5-1,5-2) WPTZ  (NBC)
19, (2-1) CBFT  (SRC), french
20, (6-1) CBMT  (CBC)
22, (3-1,3-2) WCAX  (CBS)
27,(17-1) CIVM,(TQc)  Tele-Quebec , french
32,(33-1,33-2,33-3,33-4) WETK  (PBS)
38, (57-1,57-2,57-3) WCFE (PBS)
42, (35-1) CFJP  (TQS)  french
43,(44-1,44-2) WFFF  (FOX)


The first # is physical channel, second # is virtual or mapped  channel. After set up, TV only display mapped ch#.

In west island, it is difficult to get ch 13, 19, 20. The antenna is normal for UHF and 13 is VHF. 19, 20 are transmited at the top  CBC building, it may be blocked by royal Mt. Any other Channels should be ok if you fine tune the antenna.

Post your result if possible.

Good luck,
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44#
发表于 2009-6-13 12:26 | 只看该作者
Post by aoe;2265166
我也住BEACONSFIELD, 买了个所谓的好天线, 花了我90多。
http://www.microinformatique.ca/ ... lus_e.asp?SKU=22542

我把天线装在烟囱上,可一个HD 频道也没收到过,连CTV等模拟信号都不行。也懒得弄了。

我家周围全是树,是不是对接收有影响。

可能是没装好,或方向不对。
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45#
发表于 2009-7-2 09:52 | 只看该作者
非常+非常 感谢!在研究中!
Post by mtl02ca;2265719
Here is my tips to get Digital channel:

. . . . . . . . Post your result if possible.
Good luck,
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46#
发表于 2009-7-9 10:30 | 只看该作者
Anyone wants to take the 8 pieces?  ONLY the 2x4 v-shape pieces on both side of Antenna.

. . . . . .  We striped the paint about 1 cm on each tip(all 16), receiving of digital signal got worst, less stable.  Regular channel improved.  We have made a new set of 8 pieces, not stripping the paint this time :p .  Anyone wants to play with the old pieces, please let me know.  Pick up at Berri MTR.

Nice day!
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47#
发表于 2009-8-18 13:27 | 只看该作者

丁!

仍在使用中  。   。   。   。  :p
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48#
发表于 2009-8-25 03:17 | 只看该作者

请问楼主专家,两组V型的螺钉间距

是1.5吋吗?谢谢。并且背面不用覆铝箔吗?U/V的差转如不用,所有的高清全部在U段吗?普通电视能接受吗?再谢。
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49#
发表于 2009-8-25 03:57 | 只看该作者
根据PDF的图,沿木棍的轴线方向的间距是6" ,而youtube 视频中是5 3/4”,看各位的作品照片,垂向两V的间距大约在 1 1/2",而PDF 图注明大约1/2“,成功的GM有具体的数值吗?

谢谢
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50#
发表于 2009-8-25 11:49 | 只看该作者
没人能回答吗?请看到的大侠解疑。谢谢
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