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Television - Tech, General, and Q&A
DTV | HDTV Reception and Antenna Discussion
Channel Master Antenna Rotator Control Unit
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<p>[QUOTE="Fringe Reception, post: 91857, member: 4739"]wolfcrane,</p><p></p><p>Multidirectional antennas are possible for free HDTV but after reviewing your TVFOOL report, I think it would take significant engineering to make it work using a single fixed antenna. FYI, except in rare locations omnidirectional antennas will not work for HDTV.</p><p></p><p>A multidirectional antenna for HDTV is a confusing topic, because they rely on taking advantage of inherent 'problems' in antenna designs. If an antenna receives signals when pointed north, it may (by design) "accidentally" be able to receive signals fairly well from one or more "unexpected" directions. Choosing the 'right' antenna that "accidentally" does this is the trick and it is expensive to try a series of antennas. I have seen this accomplished locally and the cost was comparitively outrageous, with the same results had they simply used a rotor. Okay, a simpler/cleaner roofline happened.</p><p></p><p>It depends on the actual behavior of a <u>specific</u> antenna or an antenna array as seen here: <a href="http://www.hdtvprimer.com/ANTENNAS/16bay.html">A 16-Bay UHF Antenna</a> Scroll thru to see <strong>real</strong> information about a directional antennas' behavior. Be aware, sometimes, the receiving minimum lobes in these charts collect noise or competing 'information' that can kill reception ... on the other hand ... sometimes they help. Don't forget to add black magic and plenty of pixie dust. </p><p></p><p>If I was you, I'd buy a new rotor with or without a remote control and work with your existing antenna. Post your results and we will work with you from there.</p><p></p><p>Jim[/QUOTE]</p><p></p>
[QUOTE="Fringe Reception, post: 91857, member: 4739"]wolfcrane, Multidirectional antennas are possible for free HDTV but after reviewing your TVFOOL report, I think it would take significant engineering to make it work using a single fixed antenna. FYI, except in rare locations omnidirectional antennas will not work for HDTV. A multidirectional antenna for HDTV is a confusing topic, because they rely on taking advantage of inherent 'problems' in antenna designs. If an antenna receives signals when pointed north, it may (by design) "accidentally" be able to receive signals fairly well from one or more "unexpected" directions. Choosing the 'right' antenna that "accidentally" does this is the trick and it is expensive to try a series of antennas. I have seen this accomplished locally and the cost was comparitively outrageous, with the same results had they simply used a rotor. Okay, a simpler/cleaner roofline happened. It depends on the actual behavior of a [U]specific[/U] antenna or an antenna array as seen here: [url=http://www.hdtvprimer.com/ANTENNAS/16bay.html]A 16-Bay UHF Antenna[/url] Scroll thru to see [B]real[/B] information about a directional antennas' behavior. Be aware, sometimes, the receiving minimum lobes in these charts collect noise or competing 'information' that can kill reception ... on the other hand ... sometimes they help. Don't forget to add black magic and plenty of pixie dust. If I was you, I'd buy a new rotor with or without a remote control and work with your existing antenna. Post your results and we will work with you from there. Jim[/QUOTE]
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DTV | HDTV Reception and Antenna Discussion
Channel Master Antenna Rotator Control Unit
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