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Looking for an expensive DSL filter

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    Looking for an expensive DSL filter

    Having established that my DSL filter is on the blink, I need a replacement. (Well it has always blinked irritatingly, but I mean is now almost knackered.)

    However, a quick web search established that these are ridiculously cheap, only a couple of quid, and I wonder if there are perhaps better models available for a bit more, for example with multiple sockets.

    Crazy as it may seem, I don't feel comfortable paying such a pittance.
    Work in the public sector? Read the IR35 FAQ here

    #2
    I've had trouble with filters in the past. I switched to using BT ones a few years back, and no trouble since.
    Confusion is a natural state of being

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      #3
      Originally posted by OwlHoot View Post
      Looking for an expensive DSL filter
      I'll sell you my spare one - £10000, will price match if you find more expensive one...

      Comment


        #4
        Sky have just sent me my new Broadband. There are three new filters in the box.
        I will continue to use my BT ones though.
        Confusion is a natural state of being

        Comment


          #5
          Originally posted by OwlHoot View Post
          Crazy as it may seem, I don't feel comfortable paying such a pittance.
          All they are is a very basic electronic analogue signal filter. The components should literally cost a few pence

          If you're paying more then you're being ripped off!

          If you have more than a couple of phone sockets in your house then you might want to change the method of splitting the signal:

          Copy and pasted from wikipedia
          http://en.wikipedia.org/wiki/Asymmet...ubscriber_line
          Due to the way it uses the frequency spectrum, ADSL deployment presents some issues. It is necessary to install appropriate frequency filters at the customer's premises, to avoid interference with the voice service, while at the same time taking care to keep a clean signal level for the ADSL connection.

          In the early days of DSL, installation required a technician to visit the premises. A splitter or microfilter was installed near the demarcation point, from which a dedicated data line was installed. This way, the DSL signal is separated earlier and is not attenuated inside the customer premises. However, this procedure is costly, and also caused problems with customers complaining about having to wait for the technician to perform the installation. As a result, many DSL vendors started offering a self-install option, in which they ship equipment and instructions to the customer. Instead of separating the DSL signal at the demarcation point, the opposite is done: the DSL signal is filtered at each phone outlet by use of a low-pass filter for voice and a high-pass filter for data, usually enclosed in what is known as a microfilter. This microfilter can be plugged directly into any phone jack, and does not require any rewiring at the customer's premises.

          A side effect of the move to the self-install model is that the DSL signal can be degraded, especially if more than 5 voiceband devices are connected to the line. The DSL signal is now present on all telephone wiring in the building, causing attenuation and echo. A way to circumvent this is to go back to the original model, and install one filter upstream from all telephone jacks in the building, except for the jack to which the DSL modem will be connected. Since this requires wiring changes by the customer and may not work on some household telephone wiring, it is rarely done. It is usually much easier to install filters at each telephone jack that is in use.

          DSL signals may be degraded by older telephone lines, surge protectors, poorly designed microfilters, radio frequency interference, electrical noise, and by long telephone extension cords. Telephone extension cords are typically made with small-gauge multi-strand copper conductors which do not maintain a noise-reducing pair twist. Such cable is more susceptible to electromagnetic interference and has more attenuation than solid twisted-pair copper wires typically wired to telephone jacks. These effects are especially significant where the customer's phone line is more than 4 km from the DSLAM in the telephone exchange, which causes the signal levels to be lower relative to any local noise and attenuation. This will have the effect of reducing speeds or causing connection failures.
          Last edited by Spacecadet; 18 December 2009, 09:46.
          Coffee's for closers

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            #6
            Originally posted by Spacecadet View Post
            If you're paying more then you're being ripped off!


            live in Britain

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              #7
              try replacing the plate in the masterswitch with one which has an inbuilt filter - much more reliable.

              ADSL Master Faceplate Splitters & iPlate

              you need to scroll down the page a bit to see them.
              This default font is sooooooooooooo boring and so are short usernames

              Comment


                #8
                Get down to maplin and build you own low pass filter... What kind of engineer are you!?
                "Never argue with stupid people, they will drag you down to their level and beat you with experience". Mark Twain

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                  #9
                  Just out of curiosity I went quickly through my spares (Junk) cupboard.

                  I have:
                  • 11 spare DSL filters
                  • 9 Assorted Harddrives
                  • 2 5 1/4 floppy drives
                  • 4 3.5 floppy drives
                  • about 30 kilo of assorted cables
                  • 6 power packs
                  • and a large box of assorted memmory, vid cards etc


                  Well!
                  It may come in useful one day
                  Confusion is a natural state of being

                  Comment


                    #10
                    Originally posted by Diver View Post
                    Just out of curiosity I went quickly through my spares (Junk) cupboard.

                    I have:
                    • 11 spare DSL filters
                    • 9 Assorted Harddrives
                    • 2 5 1/4 floppy drives
                    • 4 3.5 floppy drives
                    • about 30 kilo of assorted cables
                    • 6 power packs
                    • and a large box of assorted memmory, vid cards etc


                    Well!
                    It may come in useful one day
                    I had a rummage the other day and came across a parallel printer cable. Do you reckon these will come back into fashion one day or should I just chuck it.

                    Comment

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