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OTA and AM21N Question

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by Bevostein, Sep 2, 2013.

  1. Sep 2, 2013 #1 of 80
    Bevostein

    Bevostein Mentor

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    I have two AM21Ns. One is paired with an HR34 and the other an HR24. I also have two AM21s. Both if those are paired with HR21s.

    I recently had OTA signal issues on the AM21Ns. There is a common line and splitter that feeds both of those AM21Ns. I figured out my issue with the feed and I have resolved my signal issue, I think.

    I say, I think, because while working on my issue I used the OTA signal meter built in to the HR34 and HR24. Before I got my issue fixed my signal strength was low on the signal meter. Once the picture started working my signal strength across all OTA channels became 85%. I can not get it above 85%. However when I check my signal strength on the AM21s paired with the HR21s I get a variety of signal strengths as you would expect but none are below 85%.

    Is the AM21N configured so that it does not show a signal strength higher than 85%? Or is my signal to the AM21Ns truly 85%? The second seems unlikely since all channels show 85%.


    Sent from my iPhone using DBSTalk
     
  2. Sep 2, 2013 #2 of 80
    goober22

    goober22 Godfather

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    Sunny...
    There are definatley issues with the signal meters. I have 2 on R22s and they never rise above 85% either. I have HR20s with built-in tuners and they give a range all the way up to 100%.

    It seems 85% is the max for some reason on some receivers.
     
  3. Sep 2, 2013 #3 of 80
    coconut13

    coconut13 Member

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    I think it probably is determined by your AM21 or AM21N model and whatever DVR model you are hooked up to. I have an AM21N hooked to an HR24-200 and my signal meter never goes over 85 on channels that my TV tuner has at 100. It depends on how many splits you have up to your AM21 and then the signal is split by the AM21 to support 2 tuners. So by splitting a TV signal of 100 you might be max of 85.
     
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  4. Sep 2, 2013 #4 of 80
    Gary16

    Gary16 Mentor

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    What's the difference between the 21 and the 21N?
     
  5. Sep 2, 2013 #5 of 80
    Steve

    Steve Well-Known Member

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    Lower...
    FWIW, I have two "old" AM21s, currently connected to an HR24 and an HR21, and they both read up to 100%. When I had one of them hooked up to an HR44-700 a month or so ago, it also read up to 100%.
     
  6. Sep 2, 2013 #6 of 80
    harsh

    harsh Beware the Attack Basset

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    Primarily the configuration of the power cords. The AM21N was designed for use with receivers that use external power supplies so you don't loop through them as you would with the corded receivers.
     
  7. Sep 2, 2013 #7 of 80
    Bevostein

    Bevostein Mentor

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    I tried a direct hook up with no splitters and still couldn't get above 85% so I don't think splitting is the issue. Sounds like it is either the AM21N or else the problem exists on both the HR24 and HR34 but no the HR21. I would venture a guess its the AM21N because I bet the signal is measured in the AM21N box. Regardless, I now I have confirmation my issue fixed and in the future if I am testing my signal strength use the AM21/HR21 config. Thanks!



    Also one is matte black (AM21N) and the other gloss black (AM21)
     
  8. Sep 2, 2013 #8 of 80
    RAD

    RAD Well-Known Member

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    Dripping...
    There's a software issue with the AM21N's where the signal reading just never goes above 85%. I've had an AM21N and a AM21 on the same DVR using the same antenna feed and channels that the AM21 sees at 100% the AM21 only shows 85%, been that way ever since they came out.


    Sent from my iPad using DBSTalk mobile app
     
  9. Sep 2, 2013 #9 of 80
    bobnielsen

    bobnielsen Éminence grise

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    Bainbridge...
    There was a similar issue with some of the very early AM21s, which never went above 77%. It had no effect on performance however.
     
  10. RunnerFL

    RunnerFL Well-Known Member

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    Wrong, the AM21N has the same power cord setup as the AM21.
     
  11. Beerstalker

    Beerstalker Hall Of Fame

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    I believe it has a cap that goes over the plug that would normally plug into an HR21, HR22, etc recevier since it doesn't get used with the newer receivers. The AM21 cord didn't have that plug.
     
  12. RunnerFL

    RunnerFL Well-Known Member

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    Nope, no cap. Same power out cable as the AM21. I own one of each and they are setup the same.
     
  13. Beerstalker

    Beerstalker Hall Of Fame

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    I thought the cap was on the end of that cable. To prevent people from getting shocked (although they would pretty much have to stick the thing in their mouth and suck on it, or stick something in the ends to get shocked).
     
  14. RunnerFL

    RunnerFL Well-Known Member

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    Nope, no cap.
     

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  15. inkahauts

    inkahauts Well-Known Member

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    I thought the cap was a seperat thing to just slip over the end?


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  16. HoTat2

    HoTat2 Hall Of Fame

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    That's what always thought as well about the AM21N;

    Other than a slightly later manufacturing date than the earlier AM21, The AM21N was redesigned this way for use with the then new H25 and now HR44 with external power brick adapters.
     
  17. RunnerFL

    RunnerFL Well-Known Member

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    There was no cap included... (I'm starting to feel like a broken record here)
     
  18. HoTat2

    HoTat2 Hall Of Fame

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    OK;

    But in my experience the first AM21 I purchased just after they went public circa '08-'09 did not have the cap.

    However the last two I received were recent. One back during the dispute with Tribune, and the other just as a courtesy from Retention earlier this year, were both AM21Ns and included the insulating caps.

    I didn't need them of course since I have no H25s or HR44, but they were included.
     
  19. Go Beavs

    Go Beavs Hall Of Fame

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    I have an early AM21N and it came with no cap. However, they might be including them on new production runs now. :shrug:
     
  20. RunnerFL

    RunnerFL Well-Known Member

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    Sure, they may come with them know. I can buy that. They didn't however come with them originally so they were not "designed for use with receivers that use external power supplies". The cap would have been something thought of long after the design phase if they are just now starting to come with them.
     

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