RG-59 & Amplifier?
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Posted by James Knott on March 9, 2005, 12:35 pm
Please log in for more thread options Crypt wrote: No. In fact it will make it unusable. Any amp ahead of the modem has to be able to pass the data transmitted by the modem. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Lucas Tam on March 9, 2005, 5:46 pm
Please log in for more thread options > Crypt wrote:
> >> Also about the cable
>> modem.ÿÿIfÿIÿputÿtheÿEDA-2100ÿbeforeÿtheÿcableÿmodem (I'm thinking >> maybe where the cable line first comes in to the house) is there any >> chance it could help the cable modem maintain connectivity? >> >
> No. In fact it will make it unusable. Any amp ahead of the modem has > to be able to pass the data transmitted by the modem. > > That's untrue - the EDA-2100 is a bidirectional amp that is compatible with digital cable services. Rogers Cable uses the EDA in some installs... and they place it right in the cable box OUTSIDE your house ; ) -- Lucas Tam (REMOVEnntp@rogers.com) Please delete "REMOVE" from the e-mail address when replying. http://members.ebay.com/aboutme/coolspot18/ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Lucas Tam on March 9, 2005, 5:45 pm
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> Also about the cable modem. If I put the EDA-2100 before the cable
> modem (I'm thinking maybe where the cable line first comes in to the > house) is there any chance it could help the cable modem maintain > connectivity? Yes, if your signal is weak this will help. The EDA-2100 is compatible with digital cable services (it's a bi- directional amp) so it shouldn't affect your cable modem too much. If you need a return path boost, check out the ERA-4100. As for your question about what type of cabling you should use, it's best to run RG-6 Dual Shielded or RG-6 Quad shielded for digital satellite/cable. -- Lucas Tam (REMOVEnntp@rogers.com) Please delete "REMOVE" from the e-mail address when replying. http://members.ebay.com/aboutme/coolspot18/ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Crypt on March 9, 2005, 2:26 am
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Also the Electroline amp I'm thinking of getting is model EDA-2100. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Posted by Tomi Holger Engdahl on March 9, 2005, 1:22 pm
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> Also the Electroline amp I'm thinking of getting is model EDA-2100.
Web page http://www.cabletvamps.com/Products/EDA-2100.htm says: "The EDA-2100 is a 1-port amplifier. One port amplifiers are the easiest to install, and are best suited for connecting to your incoming cable line before you start splitting off the line to go to multiple TVs. The EDA-2100 is generally the best for use in existing installations, since it is easy to use, with a single cable connection in and out." This kind of ampliifer sound somethign that is OK for splitting the incomign antenna signal to different TVs. What in you case complicates thigns is that you say you have cable modem. A cable modem will not work through a normal antenna booting amplifier. The reason is that normal antenna signal amplifiers are unidirectional, pass signal only to one direction and amplify signal on the way. The cable modem uses two way communications over cable TV cable (at least all modern systems). If you put an unidirctional amplifier on the way, the downstream signal gets through amplified, but the signals the cable modem sends out never get to the cable company end becasue the amplifier blocks them. The cable TV systems that support cable TV use bidirectional amplifiers designed for two way commications in mind. Those amplifiers will amplify normal TV frequencies normally as any norma maplifier, but in addition to it they will pass the return signals (frequencies from 5 MHz to 30..60 MHz depending on system) on the opposite direction. This is accomplished with a special filter inside amplifier unit and possibly another amplifier to amplify the return channel signal. This kind of bidirectional amplifiers are available, but their market is generally more to cable TV companies than to consumers. -- Tomi Engdahl (http://www.iki.fi/then/) Take a look at my electronics web links and documents at http://www.epanorama.net/ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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> (I'm thinking maybe where the cable line first comes in to the house) is
> there any chance it could help the cable modem maintain connectivity?
>