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Do I need 75 ohm loads on 4-way splitter?

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  • user warning: Table './drupal_gding/cache_filter' is marked as crashed and should be repaired query: UPDATE cache_filter SET data = '<p>If I get a 4-way passive splitter (to feed 2 HD Homerun tuners plus 1 \'normal\' hdtv tuner), do I need to put a load on the unused line? Or can I just leave it open and the other 3 feeds will get just as much signal?</p>\n<p>Thanks.</p>\n', created = 1369037028, expire = 1369123428, headers = '', serialized = 0 WHERE cid = '1:8559b099475ceec566f05ed53988b65c' in /var/www/mythdora/html/includes/cache.inc on line 109.
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  • user warning: Table './drupal_gding/cache_filter' is marked as crashed and should be repaired query: UPDATE cache_filter SET data = '<p>RG6 coax which you should be using is 50 ohm, not 75 ohm. Leaving an output open won\'t break anything but may result in lousy signal quality which you don\'t want for HD. Also, a four-way splitter will give you 25% of the original signal to each tuner whereas a three-way splitter gives 33% to each tuner. If your source is an antenna, every microvolt is precious. Also, three-way splitters come in balanced and unbalanced versions. You definitely want a balanced splitter for this application.</p>\n', created = 1369037029, expire = 1369123429, headers = '', serialized = 0 WHERE cid = '1:df16d0351de600aac9cdf2156741afd9' in /var/www/mythdora/html/includes/cache.inc on line 109.
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  • user warning: Table './drupal_gding/cache_filter' is marked as crashed and should be repaired query: UPDATE cache_filter SET data = '<p>Thanks for clarifying the 50-ohm vs. 75-ohm. I didn\'t see a 3-way splitter @ Radio Shack but will look again. Plus I may end up using the 4th feed for my VCR or TV antenna (so I can have picture-in-picture while gaming -- My tv only supports analog for the PIP).</p>\n<p>Do you have any thoughts on these Active Splitters? They plug into the wall and supposedly amplify each feed.</p>\n', created = 1369037029, expire = 1369123429, headers = '', serialized = 0 WHERE cid = '1:e0df9726c5aef4ad2949b437f409175a' in /var/www/mythdora/html/includes/cache.inc on line 109.
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  • user warning: Table './drupal_gding/cache_filter' is marked as crashed and should be repaired query: UPDATE cache_filter SET data = '<p><a href=\"http://tinyurl.com/69mel4\">http://tinyurl.com/69mel4</a></p>\n<p>As to active splitters, there are good ones and junk, like just about everything else. Usually you get what you pay for but before investing it would be a good idea to try a passive splitter first and only go active if you discover you haven\'t got enough signal. It is possible to go too far and overload a tuner with an amplified signal that really didn\'t need amplification. Without an RF signal meter it\'s pretty much a cut and try operation.</p>\n', created = 1369037029, expire = 1369123429, headers = '', serialized = 0 WHERE cid = '1:d8dfc9367e0763e24bdf4b2172c9eac6' in /var/www/mythdora/html/includes/cache.inc on line 109.
Submitted by JoeXB on June 23, 2008 - 7:03am

If I get a 4-way passive splitter (to feed 2 HD Homerun tuners plus 1 'normal' hdtv tuner), do I need to put a load on the unused line? Or can I just leave it open and the other 3 feeds will get just as much signal?

Thanks.

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You're confused

Submitted by Bigchris on June 23, 2008 - 7:37am.

RG6 coax which you should be using is 50 ohm, not 75 ohm. Leaving an output open won't break anything but may result in lousy signal quality which you don't want for HD. Also, a four-way splitter will give you 25% of the original signal to each tuner whereas a three-way splitter gives 33% to each tuner. If your source is an antenna, every microvolt is precious. Also, three-way splitters come in balanced and unbalanced versions. You definitely want a balanced splitter for this application.

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Thanks.

Submitted by JoeXB on June 23, 2008 - 11:25am.

Thanks for clarifying the 50-ohm vs. 75-ohm. I didn't see a 3-way splitter @ Radio Shack but will look again. Plus I may end up using the 4th feed for my VCR or TV antenna (so I can have picture-in-picture while gaming -- My tv only supports analog for the PIP).

Do you have any thoughts on these Active Splitters? They plug into the wall and supposedly amplify each feed.

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This is your best bet

Submitted by Bigchris on June 23, 2008 - 1:36pm.

http://tinyurl.com/69mel4

As to active splitters, there are good ones and junk, like just about everything else. Usually you get what you pay for but before investing it would be a good idea to try a passive splitter first and only go active if you discover you haven't got enough signal. It is possible to go too far and overload a tuner with an amplified signal that really didn't need amplification. Without an RF signal meter it's pretty much a cut and try operation.

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