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What's a decent to good signal strength for channels?

Discussion in 'TiVo Premiere DVRs' started by samsgood, Aug 1, 2012.

  1. samsgood

    samsgood New Member

    41
    0
    Jul 25, 2012
    Just installed a TIVO premiere with my optimum cable card here in Brooklyn NY and I was wondering what a good signal strength is for channels?

    I did a few tests on a regular broadcast network, a cable channel, and then a premium channel.

    My results were basically in the 77-89 range for the three. Is that ok or should results always be in the high 90's?
     
  2. CoxInPHX

    CoxInPHX COX Communications

    2,357
    6
    Jan 14, 2011
    Phoenix, AZ
    Ideally, for signal strength, you would want it between 85-95 on each of the tuners. Generally the higher the channel frequency, the lower the signal strength.
    Minimum for a 2 tuner Premiere is probably 70-75,
    Elite/XL4 needs 80-85
    ------------------------------------
    The ideal SNR level would be 30 - 40dB on QAM 256

    The ideal signal level in dBmV is going to be 0 to 10 dBmV.
    Technically anything between -10dBmV and 10dBmV should be acceptable, but SNR (Signal-to-Noise) also has to be factored in.

    IMO
    -5dBmV to -3dBmV is barely acceptable
    -2dBmV to 0dBmV is acceptable
    0dBmV to 2dBmV is good
    2dBmV to 5dBmV is great
     
  3. samsgood

    samsgood New Member

    41
    0
    Jul 25, 2012
    TY very much. :)
     
  4. scandia101

    scandia101 Just the facts ma'am

    10,524
    0
    Oct 20, 2007
    MN, greater...
    I use my Premiere for OTA and I have 3 channels with signals in the upper 30's (to low 40's at best) and have no issues.
     
  5. ScottP461

    ScottP461 Member

    58
    0
    Sep 3, 2005
    I have 3 new XL's used for OTA only. The signal strength meter shows green at 50 and above, yellow 40-49 and blue (ghost!) 39 and below. I have 2 channels in the low 40's usually (high VHF, digital 11 & 13), the rest are high 50's up to 85+.

    My signals breakup below 40 and seem to be OK above that. I consider 50 and above to be safe (probably won't dip below 40 at any point), although I get nervous if the signal dips below 50. So, the color coding of the signal strength "bar" is an accurate indicator of good signal for me.

    I have severe multipath problems (only with the TiVo's OTA tuners) which may account for your getting acceptable results below 40! This is, however, a subject better suited to another thread.
     

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