Which ATSC card to use?
- user warning: Table './drupal_gding/cache_filter' is marked as crashed and should be repaired query: SELECT data, created, headers, expire, serialized FROM cache_filter WHERE cid = '1:d2fcc5b4ed39fb5086d736680afad4ea' in /var/www/mythdora/html/includes/cache.inc on line 26.
- user warning: Table './drupal_gding/cache_filter' is marked as crashed and should be repaired query: UPDATE cache_filter SET data = '<p>I\'m about to set up an ATSC tuner in my MD4 box and wanted to ask the community what they\'ve had luck with. I live about 4 miles from the local broadcast towers. I have some trees between my house and the towers but otherwise decent line of sight. I plan on getting an amplified directional roof antenna. I\'m worried I may get some ghosting from the surrounding trees and hillside.</p>\n<p>My question is, what tuner card should I choose to minimize interference? I understand that the main advances in tuner cards recently have been with reducing interference from reflected signals. I\'m looking at the pcHDTV 5500 vs the Kworld 115. I can get the Kworld pretty cheap on ebay so I\'d like to go that way unless the 5500 is that much better. I plan to watch primarily ATSC but may try to use the NTSC from time to time.</p>\n<p>Thanks,</p>\n<p>B</p>\n', created = 1369143382, expire = 1369229782, headers = '', serialized = 0 WHERE cid = '1:d2fcc5b4ed39fb5086d736680afad4ea' 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>I have both the Kworld 110 and the Avermedia A180.</p>\n<p>They work wonderful. They use the same chipset so they are identical as far as Myth is concerned.</p>\n', created = 1369143382, expire = 1369229782, headers = '', serialized = 0 WHERE cid = '1:5236ee4eb9f519d766095783e5f0b473' 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>At four miles out you should be able to get decent reception with rabbit ears but I applaud your using a rooftop antenna. Forget amplified, you don\'t need it and you\'d be likely to overdrive your tuner card. A Channelmaster 3022 will do you nicely but be sure to use quality RG-6 dual or quad shielded downlead to avoid noise pickup.</p>\n<p>Ghosting is a term to describe double images in analog television caused by multipath reflections. Ghosting doesn\'t occur with ATSC. If you\'ve got a picture, it is sharp. When multipath interference is present and is severe enough, ATSC drops video or sound or both momentarily. That happens because the primary data stream momentarily gets cancelled or corrupted by an out of phase reflection. ATSC is robust enough to recover a little lost data, but it has limits, and if the dropout is long enough those limits get exceeded. Unfortunately, that means that ATSC doesn\'t give you any visual clues that it is experiencing multipath until dropouts begin to occur. If it is a problem, the best solution is moving the antenna a foot or two left or right until it ceases to be a problem. You\'re dealing with UHF frequencies and minor antenna location changes can make a big difference. Frankly, I don\'t expect multipath to be a big issue for you because you are so close to the primary signal source that any reflections would be miniscule compared to the main signal.</p>\n<p>I use pcHDTV cards exclusively and can tell you they are excellent tuners. I can\'t compare them with Kworld tuners because I\'ve never used Kworld and have no point of reference. If you should stumble across a pcHDTV HD-3000 card on Ebay at a good price, snap it up! They were the predecessors to the HD5500s and are also excellent ATSC cards. Avermedia A-180 cards also have a good reputation, but again I haven\'t personally tried them. I did try a Hauppauge HVR-950 and while the hardware worked, the available Linux software sucked and refused to play nicely with other tuners. I\'d avoid that one for now.</p>\n', created = 1369143382, expire = 1369229782, headers = '', serialized = 0 WHERE cid = '1:3f4c0059505b178efef510b51282cf39' 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>Hi. I have had NO LUCK getting ATSC working on the KWorld 110. I read that 115 is similar. NTSC works but who wants that only? I know there is a mythwiki about getting the K110 and 115 to work but no luck with me and ATSC. </p>\n<p>I found your question as I am searching for a HD card that actually works.</p>\n<p>Good luck!</p>\n<p>Brian</p>\n', created = 1369143382, expire = 1369229782, headers = '', serialized = 0 WHERE cid = '1:408595cb23ebfc90f101099c9ba2d533' 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>If I pointed out that pcHDTV cards are designed and built exclusively for Linux users and that the HD-3000 ignores the dreaded Broadcast Flag I\'d probably be accused of favoritism so I won\'t tell you that. :-)</p>\n', created = 1369143382, expire = 1369229782, headers = '', serialized = 0 WHERE cid = '1:9ceac4fb7c2425a625ae5393d098bbab' 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>:-)</p>\n<p>I knew about the broadcast flag being ignored in the pcHDTV cards. Last I heard the broadcast flag was not in use but it\'s nice to have a card that ignores it if the FCC changes their mind. Overall people seem to really like the pcHDTV cards.</p>\n<p>I have an indoor antenna that I was using for NTSC for awhile. Reception wasn\'t that great. I checked my address on antennaweb.org and they recommend an amplified antenna, probably because I have some tall trees between me and the tower. I guess I\'ll try the antenna I have first and see how it works.</p>\n<p>I\'ve heard of people having problems with the Kworld cards but that they do work. The 110 and the 115 are the same hardware with different PCI IDs, from what I can tell. I also heard they run hot. I have a very slim HTPC case so I worry a bit about heat. The only reason I\'m considering them is that they\'re really cheap on ebay right now.</p>\n', created = 1369143382, expire = 1369229782, headers = '', serialized = 0 WHERE cid = '1:639bb6e228729cac36b8e1fc8ca640bc' 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>I\'m 21 miles from the antenna farm that the local stations use with an unamplified antenna only 16 feet off the ground looking through a thick forest of 30-40 foot oaks and pine trees and I\'ve got good signal strength so you should have no problem.</p>\n<p>All the HDTV tuners I\'ve seen run hot and I\'ve got three of them in adjacent PCI slots so I was worried about that too. I think the answer is if they\'re built right, they can take the heat. One thing I have found though is that putting a wifi card in the same box can desensitize the tuners. Moving the wifi card and antenna 2-3 feet away from the backend solves the problem, but wifi isn\'t the right answer for moving HDTV files anyway. It is useful for database updates though.</p>\n<p>P.S. HDHomerun is another ATSC solution known to work with MythDora.</p>\n', created = 1369143382, expire = 1369229782, headers = '', serialized = 0 WHERE cid = '1:9627832edcbefda658abb8f0cf0bdd85' in /var/www/mythdora/html/includes/cache.inc on line 109.
Submitted by bside on January 2, 2008 - 12:36pm
I'm about to set up an ATSC tuner in my MD4 box and wanted to ask the community what they've had luck with. I live about 4 miles from the local broadcast towers. I have some trees between my house and the towers but otherwise decent line of sight. I plan on getting an amplified directional roof antenna. I'm worried I may get some ghosting from the surrounding trees and hillside.
My question is, what tuner card should I choose to minimize interference? I understand that the main advances in tuner cards recently have been with reducing interference from reflected signals. I'm looking at the pcHDTV 5500 vs the Kworld 115. I can get the Kworld pretty cheap on ebay so I'd like to go that way unless the 5500 is that much better. I plan to watch primarily ATSC but may try to use the NTSC from time to time.
Thanks,
B
Kworld, Avermedia
I have both the Kworld 110 and the Avermedia A180.
They work wonderful. They use the same chipset so they are identical as far as Myth is concerned.
At four miles out you should
At four miles out you should be able to get decent reception with rabbit ears but I applaud your using a rooftop antenna. Forget amplified, you don't need it and you'd be likely to overdrive your tuner card. A Channelmaster 3022 will do you nicely but be sure to use quality RG-6 dual or quad shielded downlead to avoid noise pickup.
Ghosting is a term to describe double images in analog television caused by multipath reflections. Ghosting doesn't occur with ATSC. If you've got a picture, it is sharp. When multipath interference is present and is severe enough, ATSC drops video or sound or both momentarily. That happens because the primary data stream momentarily gets cancelled or corrupted by an out of phase reflection. ATSC is robust enough to recover a little lost data, but it has limits, and if the dropout is long enough those limits get exceeded. Unfortunately, that means that ATSC doesn't give you any visual clues that it is experiencing multipath until dropouts begin to occur. If it is a problem, the best solution is moving the antenna a foot or two left or right until it ceases to be a problem. You're dealing with UHF frequencies and minor antenna location changes can make a big difference. Frankly, I don't expect multipath to be a big issue for you because you are so close to the primary signal source that any reflections would be miniscule compared to the main signal.
I use pcHDTV cards exclusively and can tell you they are excellent tuners. I can't compare them with Kworld tuners because I've never used Kworld and have no point of reference. If you should stumble across a pcHDTV HD-3000 card on Ebay at a good price, snap it up! They were the predecessors to the HD5500s and are also excellent ATSC cards. Avermedia A-180 cards also have a good reputation, but again I haven't personally tried them. I did try a Hauppauge HVR-950 and while the hardware worked, the available Linux software sucked and refused to play nicely with other tuners. I'd avoid that one for now.
go the pcHDTV way
Hi. I have had NO LUCK getting ATSC working on the KWorld 110. I read that 115 is similar. NTSC works but who wants that only? I know there is a mythwiki about getting the K110 and 115 to work but no luck with me and ATSC.
I found your question as I am searching for a HD card that actually works.
Good luck!
Brian
If I pointed out that pcHDTV
If I pointed out that pcHDTV cards are designed and built exclusively for Linux users and that the HD-3000 ignores the dreaded Broadcast Flag I'd probably be accused of favoritism so I won't tell you that. :-)
:-) I knew about the
:-)
I knew about the broadcast flag being ignored in the pcHDTV cards. Last I heard the broadcast flag was not in use but it's nice to have a card that ignores it if the FCC changes their mind. Overall people seem to really like the pcHDTV cards.
I have an indoor antenna that I was using for NTSC for awhile. Reception wasn't that great. I checked my address on antennaweb.org and they recommend an amplified antenna, probably because I have some tall trees between me and the tower. I guess I'll try the antenna I have first and see how it works.
I've heard of people having problems with the Kworld cards but that they do work. The 110 and the 115 are the same hardware with different PCI IDs, from what I can tell. I also heard they run hot. I have a very slim HTPC case so I worry a bit about heat. The only reason I'm considering them is that they're really cheap on ebay right now.
I'm 21 miles from the
I'm 21 miles from the antenna farm that the local stations use with an unamplified antenna only 16 feet off the ground looking through a thick forest of 30-40 foot oaks and pine trees and I've got good signal strength so you should have no problem.
All the HDTV tuners I've seen run hot and I've got three of them in adjacent PCI slots so I was worried about that too. I think the answer is if they're built right, they can take the heat. One thing I have found though is that putting a wifi card in the same box can desensitize the tuners. Moving the wifi card and antenna 2-3 feet away from the backend solves the problem, but wifi isn't the right answer for moving HDTV files anyway. It is useful for database updates though.
P.S. HDHomerun is another ATSC solution known to work with MythDora.