HR10 vs HR20 OTA tuner quality

Discussion in 'DirecTV TiVo Powered PVRs & Receivers' started by probichaux, Aug 8, 2007.

  1. probichaux

    probichaux New Member

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    Jun 21, 2007
    I live in an area where I should be able to get good signal on 5 OTA HD stations. I have an external Winegard Square Shooter that's aimed at the two towers shared by those 5 stations. The SS signal is split in the basement and fed via diplexer to two outlets upstairs. On my HR10, I get 60-70% signal on 3 of those stations and 0% on the other two. On the HR20, I get 90+% strength on all 5. Is there really that much difference in the OTA tuners of these two units, or is it more likely that there's something amiss with the cabling between my cable point and the HR10?
     
  2. RS4

    RS4 New Member

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    Sep 2, 2001
    Indianapolis...
    It could be cabling, but it could also be the dvr's. The HR10-250 was built sometime before the HR20 and has an older technology in it. The HR20 uses a third generation technology when there is fifth gen available. Both dvr's were considered to offer a lowest quality feature (compared to other devices such as HD tv manufacturers who include the feature), but the HR20 is generally considered the better of the two.
     
  3. CorrysD

    CorrysD New Member

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    Dec 9, 2002
    Lafayette...
    I have also noticed a significant increase in signal strength since I replaced the HR10 with the HR20. I have a Silver Sensor antenna.
     
  4. TonyD79

    TonyD79 Well-Known Member

    12,321
    1,771
    Jan 4, 2002
    Columbia, MD
    I see meter readings in the high 80s on my HR10 and in the low to mid 90s on the same channels on my HR20. But performance-wise, they seem to lock in about the same, so it is probably just meter readings. My HR20 i the bedroom stays locked on stations in the 30s and 40s, I have never seen my HR10 do that, though.
     
  5. litzdog911

    litzdog911 TechKnow Guide

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    Oct 18, 2002
    Mill Creek,...
    My HR20's OTA tuners are slightly better than my HR10's with the same antenna feeds.
     
  6. TyroneShoes

    TyroneShoes HD evangelist

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    Sep 6, 2004
    Huh?

    Are you really proposing that the tuners in DVRs are "low quality" as a group compared to those used in TVs? I don't think that's the way it works. The difference in reception ability (which for ATSC tuners really comes down to how well they reject out-of-time signals) between tuners is not measured by the quality, it is measured by the technology. Quality is pretty uniform, and even if it were not, that is not what drives tuner reception performance. Improvements in technology drive performance.

    All tuners from 1997 forward have fairly equivalent quality, but every 18 months or so the technology makes significant strides. The tuners available when the HR10 was designed were old technology. Those available 4 years later when the HR20 was born were of a much better technology. But both were equivalent in quality for their time, and both probably cost the manufacturer about the same to purchase.

    And TVs designed when the HR10 was designed got tuners of the same quality and technology as those in the HR10, just as TVs designed last year got tuners of the same quality and technology of those in the HR20.

    That said, it's important to realize that no matter how much tuners might differ in quality or performance, when they are applied in a scenario they are designed for, the PQ is always identical. Not only that, but if you are in a reception environment with low reflectivity, performance is not an issue, as either tuner will do the job and provide the same results.

    That leaves one single advantage of a newer tuner, which applies only if you have a difficult reception scenario. A newer, better tuner might make the difference for a tiny few who are on the borderline between solid performance and not-so-solid performance, and it might allow another tiny few to use a set-top antenna instead of investing in a roof or attic-mounted antenna. If you belong to the vast majority who do not fall in that category, the distinction is totally meaningless.
     

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