Results 1 to 8 of 8

Thread: What does these numbers mean

  1. #1
    mxl360
    Guest

    What does these numbers mean

    Signal to Noise Ratio 34 dB
    Power Level -16 dB

    what do those numbers means to me? 1700/250 speed test
    btw, the cable line is spitted 4 times before it finally reaches my room.

  2. #2
    SG Enthusiast
    Join Date
    Jun 2000
    Location
    Columbus, Ohio
    Posts
    4,438
    You should reduce the number of splitters so as to get the downstream power level comfortably above -15, say -12 worst case.

    What is the upstream power level?

    (Corrected the question to read upstream - sorry.

    Kip)

  3. #3
    mxl360
    Guest
    that is the downstream

  4. #4
    Advanced Member chpalmer's Avatar
    Join Date
    Oct 2002
    Location
    Kitsap co. Wa
    Posts
    552
    What is your upstream sig level?
    Never take any crap off an inanimate object!!

    Never send email to this address: spam@euclidian.com. This is a spam trap and everyone sending any email to this address will be blacklisted.

  5. #5
    Certified SG Addict Indy's Avatar
    Join Date
    Feb 2000
    Location
    Amarillo, TX
    Posts
    25,526
    Blog Entries
    24

    Re: What does these numbers mean

    Originally posted by mxl360
    Signal to Noise Ratio 34 dB
    Power Level -16 dB

    what do those numbers means to me? 1700/250 speed test
    btw, the cable line is spitted 4 times before it finally reaches my room.
    Is it a single line into a four way splitter? Or four splitters between where it comes into the house and the modem?
    ------
    “The most beautiful thing we can experience in life is the mysterious. It is the source of all true art and science. He to whom this emotion is a stranger, who can no longer pause to wonder and stand rapt in awe, is as good as dead: for his eyes are closed.” - Albert Einstein

  6. #6
    mxl360
    Guest
    4 separate splitters... what is a normal value? it doesn't show upstream, only downstream

  7. #7
    mxl360
    Guest
    here it goes

    Downstream
    Frequency 537000000 Hz Locked
    Signal to Noise Ratio 33 dB
    Power Level -18 dB


    Upstream Value
    Channel ID 3
    Frequency 22000000 Hz Ranged
    Power Level 51 dBmV

  8. #8
    SG Enthusiast
    Join Date
    Jun 2000
    Location
    Columbus, Ohio
    Posts
    4,438
    Well, if you remove two balancced splitters you will gain 7 db, leaving your downstream at -11 and your upstream at 44 - which are fine numbers.

    You can't see the upstream SNR because it has to be measured at the CMTS, and they don't make it available to the customer, for several good reasons.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •