Do I need another antenna or a splitter? - AVS Forum
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post #1 of 8 Old 05-11-2012, 08:08 AM - Thread Starter
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I have an indoor Mohu Leaf antenna hooked to a Dvico Tvix DVR. I am adding a Homerun dual tuner for computer based recording. Do I need another antenna for the Homerun? Can I use a splitter on the same Mohu antenna? Would a splitter degrade the signal? Thank you.
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post #2 of 8 Old 05-11-2012, 08:28 AM
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As long as your signal strength is good, a simple splitter should do the trick. A 2-way splitter decreases power by -3dB.

IMO, start simple. Add a splitter. If you have problems with stable reception after introduction of a splitter, a pre-amp may be necessary.
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post #3 of 8 Old 05-11-2012, 09:08 AM
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A splitter should not degrade the quality of the signal, but it will, as Ratman pointed out, decrease the power level of the signal by 3-4 dB, a bit more than half (-3 dB).

Digital reception requires a balancing act between acceptable signal quality within a range of minimum and maximum power levels. As long as the power level is adequate and enough fade margin is maintained, installing splitters or extra cabling will not affect reception right up to the point where the reception falls off a "cliff".

Ratman's simple suggestion is a great one.

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post #4 of 8 Old 05-11-2012, 09:15 AM
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Can you post your tvfool results so we can get an idea of reception in your area?
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post #5 of 8 Old 05-11-2012, 10:45 AM
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TVFool results are good, but...

If the OP gets solid/stable reception with only one antenna and one tuner; direction, distance, etc. won't really help to make a "prediction" as to what may happen by adding a splitter.

Adding a hunk of coax and splitter is less expensive (to test) than buying a separate Mohu Leaf antenna.
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post #6 of 8 Old 05-11-2012, 12:05 PM
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And if necessary, they also have a powered version of the Mohu with a built in, low noise amplifier.
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post #7 of 8 Old 05-12-2012, 08:58 AM
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Quote:
Originally Posted by tylerSC View Post

And if necessary, they also have a powered version of the Mohu with a built in, low noise amplifier.

Seems like it would be better to just go with a bigger antenna, rather than make "artificial gain" with an amp on an indoor antenna.

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post #8 of 8 Old 05-12-2012, 11:49 AM
 
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Quote:
Originally Posted by kenglish View Post

Seems like it would be better to just go with a bigger antenna, rather than make "artificial gain" with an amp on an indoor antenna.

I don't know. Would it be better to prevent say 3 dB in loss or get 3 more dB in gain by getting a better antenna? Or is it a wash?
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