Showing posts with label digital cable. Show all posts
Showing posts with label digital cable. Show all posts

8/08/2012

Leviton 47693-8P 1x8 Premium Amplified CATV Module Review

Leviton 47693-8P 1x8 Premium Amplified CATV Module
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if you're looking to use this for distributing fios throughout your home, don't bother buying - this splitter isn't compatible with fios

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1x8 Premium CATV Module, tilt-able bracket, gold plated connectors, includes power supply - White

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7/11/2012

Channel Vision Coaxial Tap Splitter - 6DB Line Tap - 2 Way Review

Channel Vision Coaxial Tap Splitter - 6DB Line Tap - 2 Way
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I bought this tap to replace a 9dB PDI "Mega Tap".
Unfortunately with this splitter installed the SNR on my cable modem, installed on the -6dB leg, swings wildly by at least 4dB (38 to 34). Before with the PDI tap the SNR was very stable and higher (38.8 to 39). A back and forth comparison today confirmed these results.
I think the advertised attenuation values are pretty close. I was at about 8dBmV with the -6 tap and now 5dBmV back on the PDI tap.


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4/24/2012

Electroline EDA FT08100 8-port TV Signal Booster/Amplifier with Active Return Path Review

Electroline EDA FT08100 8-port TV Signal Booster/Amplifier with Active Return Path
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I purchased this unit because I have two analog feeds and two QAM digital capture feeds (via an HDHR unit) that I use in conjunction with SageTV for recording television. I also have a cable modem so there's a couple splitters involved. I did purchase good passive splitters (Monster 2 and 3 ways), however the QAM signal quality levels and the modem performance were not ideal.
I got this model because of the cable modem support. Imagine my surprise when the first thing to pop out of the box is a note from the manufacturer that it's best to put your cable modem on it's own line off a splitter and not hook it up to this unit because some signal loss may occur. What the..?!?!? After ranting for a while and generally annoying my wife with my whining I hooked it up anyway and took some measurements. Fortunately their warnings are not necessary - they may want to think about rewording that little note a pinch.
Here's the hard numbers:
The QAM capture signal strength using a Monster 3 way split off the single line coming in my house (I have no up stream splitters - it's all centralized in closet) for the HD ABC feed had a strength of 88 and a signal quality of 92. Putting the one line as the feed into the 8 port amplifier and running the QAM ports off of it the strength jumped to 92 and the signal quality hovered around 94. Nice. Doesn't sound like a huge deal but for HD QAM captures it makes a difference.
I didn't notice any different before or after with the analog channels - I wasn't having a problem with those.
The cable modem was the item I worried about. Downstream from the splitters it was pretty bad - anything would be an improvement. With the outside cable plugged into the Motorola modem directly downstream signal to noise ratio was 38.6 dB (higher is better, anything over 30 and you're aces), the down stream power is .2 dBmV (fine) and the upstream power was 42 dB (anything less than 50 and you're fine). After running it through the 8 port amp the downstream noise ratio was 38.3, down stream power 1.7 and the upstream power stayed at 42. All dandy numbers. I checked the speeds at several sites before and after and they all averaged about 10 meg down and 1.5 meg up across the boards - virtually no difference. Just about exactly as good as a direct connection and much better than down stream from a passive splittler, even a good one.
So - short version I'm extremely happy with the purchase but I'd suggest to the fine folks at Electroline that they rethink their warning note in their box so as not to tick folks off too quickly for no reason.


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11/01/2011

Electroline EDA-2400 Four Port Cable TV HDTV Signal Booster/Amplifier (Retail Package) Review

Electroline EDA-2400 Four Port Cable TV HDTV Signal Booster/Amplifier (Retail Package)
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Now I get all channels with my Comcast digital-to-analog converters. Every time I called Comcast about the missing channels, their answer was updating or reseting the box remotely; this was never solved the issues (end of their customer service script). My Internet research suggested a signal amp was the problem. Worked like a charm.

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10/19/2011

Mediabridge Ultra Series - Dual Shielded Coaxial Digital Audio Video Cable - Pro Grade F-Pin to F-Pin Solid Brass Connectors (25 Feet) Review

Mediabridge Ultra Series - Dual Shielded Coaxial Digital Audio Video Cable - Pro Grade F-Pin to F-Pin Solid Brass Connectors (25 Feet)
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Considering how cheap this was, I think it was definitely worth the purchase. I am using it to connect from my TV to my digital antenna that needed to be placed closer to a window. I did have to buy a connector to connect this cable to the antenna, though. But been using it a week and haven't had any problems.

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8/31/2011

4 PORT CABLE TV / HDTV / DIGITAL AMPLIFIER INTERNET MODEM SIGNAL BOOSTER INTERNET AMP Review

4 PORT CABLE TV / HDTV / DIGITAL AMPLIFIER INTERNET MODEM SIGNAL BOOSTER INTERNET AMP
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After getting my first HDTV, I was dismayed that my signal was too low to maintain a constant picture (even on non-HD channels). Having multiple devices requiring a cable signal, I needed to amplify as well as split my incoming signal. This splitter/amplifier did the trick! Very high quality item. Solidly built. Everyone should buy this thing!

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8/30/2011

8-Port Bi-Directional Cable TV HDTV Amplifier Splitter Signal Booster with Passive Return Path Review

8-Port Bi-Directional Cable TV HDTV Amplifier Splitter Signal Booster with Passive Return Path
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I have a new house with very long cable runs. When they built the house they ran a seperate cable to each room, instead of splitting them upstairs in the attic. I had an issue with the digital cable and the modem loosing signal and picture freezing before I purchased this item. It took about 5 minutes to install the amp and all picture issues are gone. Before I could not have the signal split into more than 3 lines before experiencing picture issues. I now have 7 lines running out of the amp without issue, including the cable modem. Great product, and you can not beat the price.

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7/27/2011

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

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

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