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2-Year Home Audio & Video Protection Plan

from Asurion, LLC

  • Delivered by e-mail, register and file claims online or by phone
  • Surge protection starts when your product ships; mechanical and electrical failures are covered after manufacturer warranty expires
  • No deductible, replacement via Amazon gift card reimbursement for valid claims
  • Free return shipping, replacement gift card issued immediately after product is scanned at your local UPS
  • Fully transferable with gifts, cancel anytime, full refund in the first 30 days

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Motorola Signal Booster 4-Port BDA-S4 Cable Modem TV HDTV Amplifier

4.3 out of 5 stars 303 customer reviews
| 48 answered questions

Price: $45.55 & FREE Shipping on orders over $49. Details
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  • The BDA-S4 is a bi-directional cable TV amplifier designed for use in homes. Boosts signal by 12x.
  • This is the 4-port commercial version of the Motorola Signal Booster 484095-001-00.
  • A passive return path supports multiple broadband devices such as set-top boxes and cable modems.
  • Meets all applicable IEEE surge standards for all output ports, which enhances system reliability.
  • Weather seal and protective coating allow use of the amplifier for indoor or outdoor applications.
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Frequently Bought Together

  • Motorola Signal Booster 4-Port BDA-S4 Cable Modem TV HDTV Amplifier
  • +
  • F Type 75 Ohm Terminator - 10 Pack
Total price: $51.12
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Technical Details

  • Brand Name: Motorola
  • Model Number: BDA-S4/EPS

Product Description

There is nothing worse than having a great TV to watch your favorite programs, while having a grainy or pixilated (digital cable) picture. Motorola BDA amplifiers give your TV signal a boost while maintaining full compatibility with all of your cable services. Simply install the BDA-S4 where your cable or antenna comes into your house and begin enjoying a better picture, faster downloads, and a more reliable HD or Digital TV signal. With a name like Motorola, how can you go wrong? The BDA-S4 is fully compatible with all cable TV standards, cable boxes, cable modems, routers, HDTV and more.

Product Information

Product Dimensions 5.1 x 4.8 x 3.6 inches
Item Weight 1.1 pounds
Shipping Weight 1.6 pounds (View shipping rates and policies)
ASIN B000WPGRKK
Item model number BDA-S4/EPS
Customer Reviews
4.3 out of 5 stars 303 customer reviews

4.3 out of 5 stars
Best Sellers Rank #90 in Electronics > Computers & Accessories > Networking Products > Modems
#90 in Electronics > Televisions & Video > Satellite Television
#179 in Electronics > Home Audio & Theater > Home Theater Systems
Date first available at Amazon.com March 19, 2008

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Top 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.
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30 Comments 257 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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This is the 4-port version of the Motorola Signal Booster, combining that product's high-quality 15 dB cable/antenna drop amplifier with an integrated 4-port splitter so you can use this device with up to four TVs (or a cable modem and three TVs) without having to buy a separate high-bandwidth signal splitter.

So who would benefit from a cable amplifier like this? Anyone who is having difficulty receiving a solid and reliable cable TV or cable modem signal is a candidate for the BDA-S4. But first check with your cable company to make sure they have done all they can to get a high quality cable feed into your home, with high quality cables, splitters and connectors. If they've "been there, done that," and you still notice frequent outages of your cable internet service, or pixilated (distorted) images on live or recorded TV shows from cable, then you may very well need a drop amp like this one.

This four-output amplifier is particularly helpful if you are splitting a cable signal coming into your house to multiple rooms for multiple TV feeds (and this is perfectly legal to do, per the Cable Act of 1992). Whenever you split a cable signal, you lose approximately 3 dB (decibels) of signal strength. Split a signal enough times and it can cause you to lose your cable modem feed or get sporadic distortion on your digital cable channels.
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3 Comments 138 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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This dramatically improved the reception in my house. I have Insight Cable (Ohio) and have always had several snowy channels. The cable company had been out but said there was nothing they could do, as some channels just get poor reception. To make matters worse, I recently added five new splices for a total of 10. Several TV's had terrible reception. I chose this model so I could run the main cable input into the booster and then each output to a splitter. The main cable line enters the house into a finished office so I also liked how the unit was powered, too. It works absolutely fantastic. All TV's now have excellent reception. I just cannot believe that this solved my issues. It seems very well made and sturdy and it's actually pretty neat how it works. The power source is an inverter that translates the house electric to 12V. You plug it into your outlet and then run an R59 or R6 coaxial cable from the power source to the amplifier/booster. So I just fished a new cable line in the wall near my outlet to power it, as opposed to having to deal with installing a new outlet near my cable input. I have broadband internet coming through my cable and have seen no interference or problems with that. It was always pretty good so I'm unsure if there was any improvement. To me this was well worth the money. I have several LCD TV's around and it sucked to have spent the money on them but have bad reception.
1 Comment 48 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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By Sig on October 27, 2008
This product works great ! I had some channels that would pixel and some channels that would not come in with Comcast cable. This unit solved all of that. It also made my computer down load faster. On my Tivo it made the signal strength go from 70 to 100. On my computer the downstream power went from -13dbmv to +2dbmv. This was money very well spent.
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