Average Reviews:
(More customer reviews)This amplifier is well made, durable and meets all of the requirements for professional use. It's is widely used in the cable industry (contrary to some of the reviews here). There are several companies that make these and they all meet the frequency requirements (5-1000 MHz) for modern HFC cable systems. It is provided and installed by cable guys and it costs $40-$50 on average.
First of all this device should only be used for your TV service. Do NOT amplify the modem line. You need to use the splitter to split one line to the modem and the other should feed the amplifier and the rest of your outlets. This amplifier will increase your modem upstream return level. Read the print on the amplifier : RTN(return) -8 dBmV. Your upstream power level will increase and your modem will have to work harder to communicate out. Also it will sometimes decrease your upstream signal-to-noise ratio (SNR).
The amplifier is not a do-it-all miracle device that will solve all of your problems. It simply amplifies the incoming signal. It does not filter the noise. This means your incoming signal needs to be clean and at acceptable level before the amplifier. So if you have 4 or more TVs (on average, but this may vary) you will most likely benefit from this purchase. If you have more than that you should buy the single port version (cheaper) and use an 8 way splitter. In fact if you buy a single port version and use a 4 way splitter you will get the same signal levels.
However if you have problems I strongly recommend calling your local cable co and get a tech out. If you are a DIY person, make sure you do some research first and use quality equipment (like this amplifier), RG6 60% braid shielded or better cable (quad shield is better), compression fittings (like PPC, Thomas&Betts) and not crimp fittings (don't apply pressure on the coax), splitters that do not have glue on the back cover and are rated 5-1000 MHz. By investing more money and getting quality equipment it will help you have trouble-free service and will most likely save you some money in the long run.
PS If you can get a power inserter (it looks like a regular splitter but it's not) you can use it to back feed the power on one line so you don't need to have a power outlet right next to the amplifier (make sure you connect it to the "REMOTE POWER" (sometimes "DC IN/RF OUT") port on the amplifier).
Click Here to see more reviews about: Motorola Signal Booster 4-Port BDA-S4 Cable Modem TV HDTV Amplifier
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