温故而知新:没锅的日子真难受，有无卫视烧友，交流一下(11)

[mous]

刚买了FORTEC MERCURY II, 31"DISH, ROC LINEAR LNBF, 可是怎么也调不出信号, 试了95, 97, 123, Q和S 都小于8, 请问可能是什么原因? 查了CABLE 都没问题, LNB 矢效的可能有多大? 谢谢!

[mous]

作者: AbsentROR

天呀，怎么买Fortec, 这个牌子出名的没有support...现在很多人全靠convert到PANSAT才能看到节目，怎么也不咨询一下才买，captiveworks, sonicview, cnx都贵不到哪里去...

Thanks for the idea, I 'm really a new guy! I expect at least to get some channels of FTA. no clue of where the problem is! is the LNB bad?

[mous]

作者: AbsentROR

S小于8证明
1. 你的LNB设置不对，应该try一下下面几个数值 10750, 10600, 11250, lnb type选universial

2. 直接把cable连到receiver的lnb in上，去掉switch, 看看是否有S值

Thanks a lot, here is the data of my linear lnbf:
* Input Frequency Range from 10.70Ghz ~ 12.75Ghz
* Output Frequency Range from 950Mhz ~ 1450Mhz
* Local Oscillator Frequency: 9.75GHz/10.6Ghz

I did not use a switch before LNB IN, i have 2 questions of my equipments:
1. if this LNBF is a european one and can not pick up american birds? but I got this from ebay.com in us, should be fine!!
2. how critical is the dish setup? I mean even the dish not aiming a bird not perfect acurate, it should get some signals anyhow!

ok, thanks again, i'll try again tonight!

[mous]

作者: AbsentROR

LNBF is univerial no matter if it's european or North amercian, if you want receive
FTA in north american, normally you need a linear universial Lnb...

good points! here is the link:
http://cgi.ebay.com/NEW-LINEAR-LNB-L...QQcmdZViewItem


thanks!

[mous]

作者: mous

good points! here is the link:
http://cgi.ebay.com/NEW-LINEAR-LNB-L...QcategoryZ1499...

by the way, my receiver is fortec mercury II and 31" dish.

[mous]

作者: pzv

我的经验是只要接了lnb什么都不用设置，s就能有40－50，不论你对不对准星，甚至不放锅上。
不接在5左右。

也有可能是机器问题，量量电压看，电缆应该有18v左右电压送给lnb。

非常感谢回复! 完全同意你的提法, 我的万用表不大准, 但肯定有电压给LNB, 交流40?
怀疑LNB 是坏的!!
我完全是外行, 不大懂电, 多谢!

[mous]

作者: Happy鸟

交流40肯定是不对的, 应该是直流13或18

good point, I'm a guy almost know nothing of electric. thank you anyway, I'll try again tonight.

[mous]

作者: AbsentROR

checked, you have the right lnb...
try my suggestion...change freq to 10600 or 10750

I'm buying a new circular LNB CB2008A for 118.7/119, then I can firgure out if the current universal LNBF or my fortec mercury II fails. If it is the case that the receiver fails, any new FTA boxes you guys would recommend to go for?
thanks a lot!!