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HR34/C31 and diplexer

Discussion in 'DIRECTV Connected Home' started by jkal25, Feb 2, 2013.

  1. jkal25

    jkal25 New Member

    Aug 26, 2007
    I recently upgraded my workhorse HR20's to a Genie and two C31's. In the Boston market, I can get some additional channels off-air using the AM21 with the HR34 (additional PBS's mostly).

    I'm wondering if anyone has any experience with diplexers and the C31's. I've had the setup for a week or so, and the C31's were working great, and last night I added the diplexer to the HR34, and the C31's still connected fine, so I thought I was out of the woods, but last night actually watching TV off a C31 for a period of time, the image would periodically (and apparently randomly) freeze for a second to three. At one time, the C31 said it couldn't find the server and it came back a few seconds later. I'm guessing it's related to the diplexer I added (to get my antenna to the AM21). I've had no problem watching TV on the HR34. As of now, I just have the diplexer inline and no antenna connected (that was to be today's project).

    Does anyone have any experience using one diplexer over another, or using one with a HR34/C31 combo? The one I have now is labeled 40-2150MHz, but i noticed the 8-way splitter that was recently installed is labeled 2-2150Mhz, but I have no idea where the HR34/C31 communication happens to know if that low end would cause this issue.

    Thanks for the help and suggestions.

    - Joe
  2. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

    Dec 9, 2006
    That you've gotten it to work at all shows the diplexer is of poor quality.
    The coax networking signal is in the OTA band/range, so with a quality diplexer, it would not pass to the C31.
  3. jkal25

    jkal25 New Member

    Aug 26, 2007
    Well, I guess that answers it - the coax networking being in the OTA range kills that.

    Is there a reference that lists the frequencies used for the coax networking? It looks like 500-600MHz?

    I guess it's a second cable then for the off air...

    Thank you.
  4. jacksonm30354

    jacksonm30354 Icon

    Mar 29, 2007
    You shouldn't need diplexers at all. If the AM21 is connected to the HR34, and OTA channels setup, the C31's can see those OTA channels as well.

    Edit: this assumes there is a separate coax from the antenna to the AM21.
  5. peds48

    peds48 Genius.

    Jan 10, 2008
    Which I think is the OP's issue…:lol:

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