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Fuzzy Channels After Splitter Applied

Posted on 2007-11-16
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Last Modified: 2013-12-14
A pre-thanks for the help.  I recently purchased a 1 X 16 cable splitter.  I had a 1 X 8 splitter, but we had more than 8 tvs hooked (yes we are losers). Instead of hooking two 8 splitters I just bought a 16 splitter.  Now, if you aren't watching tv on the box some of the lower channels are really fuzzy.  I tried putting a signal booster on the line and it made no difference.  I still only have 9 tvs hooked up.  The splitter splits the signal into 15.5dB for each outgoing line. Is there anything I can do? Should I hook two 1 X 8s together?  What are just some of channels so fuzzy and others are perfectly fine?

Frustrated in Michigan!
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Question by:lyddle
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by:lherrou
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lyddle,

First of all, make sure all your connections are good. Remove the splitter from the main line, and lightly sandpaper the inner wire, just enough to clean off any oxidation. Another point is making sure you have high-quality components in your system. I've found that some of the cheap stuff can cause signal loss in some spectrums, and not in others.  

Although your signal strength still sounds ok, a 16-way splitter is going to cause a huge dB drop. Maybe consider a Channel Master, or something similar, which is a amp + 4 way splitter. You can drop that into a combination of 2-ways and 3-ways, with much higher signal strength along the way. Also, are you capping off the unused outputs of your splitter? Sometimes failing to install termination caps will cause ghosting, etc.

Cheers,
LHerrou

p.s. Drop a TV or two, and all these problems will be solved :)

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by:lyddle
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This is the product I purchased and the description:

http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=183-142

These splitter/combiners utilize a PCB that ensures a superior flow of RF signal, allowing them to act as true combination RF splitter/combiners. Each splitter/combiner has a high port-to-port isolation, preventing ghosting or ingress issues. Available in 2, 3, 4, 6, 8, 8 vertical, and 16 outputs.

Specifications: *Number of outputs: 16: *Bandwidth: 5-1000 MHz *Insertion loss: 15 dB *DC passing *IR passing

    * Printed PCB circuit board
    * Nickel plated housing
    * DC and IR passing
    * 5-1000 MHz bandwidth

Does that make any difference?
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lherrou earned 500 total points
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Well, sounds decent, but obviously, something's not right. My experience is that the first thing to check is always just that the connections are good. Also, once in a while the connection between the F-connector and the cabling itself is bad, usually at places where's it's been frequently disconnected and re-connected.
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