2 channel Oscilloscope

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  • Jamo
    Retired OG Mod
    • Mar 2004
    • 21750
    • Country: United Kingdom

    #1

    2 channel Oscilloscope

    I required some forum member help has anyone got a 2 channel scope so I can check the G4 & G40 window on my car?

    It is possible at mid to higher revs the G40 is going out of scope and I need to check it and adjust the cam wheel if required.
    Last edited by Jamo; 19 July 2011, 09:38.
  • Jamo
    Retired OG Mod
    • Mar 2004
    • 21750
    • Country: United Kingdom

    #2
    If no-one has one any suggestions on usb scope or where to go to get this checked?

    Comment

    • Casper...
      S2Forum Enthusiast
      • Jul 2007
      • 120
      • Country: Denmark

      #3
      I have one
      But i think it would be cheaper to pay some guy to do it for you

      Cheers

      Casper...
      Last edited by Casper...; 19 July 2011, 12:15.

      Comment

      • S2central.net
        Retired OG Mod
        • Jul 2003
        • 16590
        • Country: Northern Ireland

        #4
        Try some of the equipment rental companies... used to deal with them in a past life for renting logic analysers and wacky optical gear.

        You dont need anything fancy here - just two channels with maybe 1MHz bandwidth - very slow in modern scope terms.

        You could try a single channel scope of course - using G40 signal as the reference point... and then the G4 pulse should arrive in the middle of that... if G4 doesnt arrive within the G40 window then you should be able to see that clearly enough.

        I had to do this once on a handheld single channel scope... its not as cool or sexy as the multichannel but its just enough to do the job.
        Paul Nugent
        Webmaster http://S2central.net
        Administrator http://S2forum.com

        1994 S2 Coupe ABY - aka Project Lazarus
        2001 A6 allroad 2.5TDi - family tank
        2003 S4 Avant 4.2 V8 - daily burble

        Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

        There are only 10 kinds of people that understand binary - those that do, and those that don't

        Comment

        • newsh
          S2Forum Obsessed
          • Aug 2003
          • 16226
          • Country: United Kingdom

          #5
          I got an old school 2 channel scope you can borrow but I'm down near Gatwick I know an electronics guy near lincoln with a lot of test gear.

          You should be able to rent one cheap enough in Brum though.

          S2 Coupe 3B Project


          Ur quattro restoration

          S2 Avant

          Boost is the new rock and roll!
          sigpic

          Comment

          • newsh
            S2Forum Obsessed
            • Aug 2003
            • 16226
            • Country: United Kingdom

            #6
            I wonder if these 20 quid ones on ebay work?


            S2 Coupe 3B Project


            Ur quattro restoration

            S2 Avant

            Boost is the new rock and roll!
            sigpic

            Comment

            • S2central.net
              Retired OG Mod
              • Jul 2003
              • 16590
              • Country: Northern Ireland

              #7
              They do seem AWFULLY cheap so buyer beware, but then again - for £20 ish they might be worth a punt... our applications on the car are not very demanding so even they have a low spec on these things they could be fine - as long as they dont ingest noise and/or crappy software makes them terrible to use in the real world.

              I think I will have take a punt on one... no pain - no gain !
              Paul Nugent
              Webmaster http://S2central.net
              Administrator http://S2forum.com

              1994 S2 Coupe ABY - aka Project Lazarus
              2001 A6 allroad 2.5TDi - family tank
              2003 S4 Avant 4.2 V8 - daily burble

              Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

              There are only 10 kinds of people that understand binary - those that do, and those that don't

              Comment

              • Jamo
                Retired OG Mod
                • Mar 2004
                • 21750
                • Country: United Kingdom

                #8
                Hehe funny you should say that I've been watching them and will take a punt

                Comment

                • S2central.net
                  Retired OG Mod
                  • Jul 2003
                  • 16590
                  • Country: Northern Ireland

                  #9
                  Just had a look at the spec on those cheapy scopes.... bandwidth is appallingly low... max frequency is below 4kHz - it is for low end audio application.

                  It would run out of puff to count flywheel teeth on the S2 at less than 30rpm !
                  Paul Nugent
                  Webmaster http://S2central.net
                  Administrator http://S2forum.com

                  1994 S2 Coupe ABY - aka Project Lazarus
                  2001 A6 allroad 2.5TDi - family tank
                  2003 S4 Avant 4.2 V8 - daily burble

                  Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

                  There are only 10 kinds of people that understand binary - those that do, and those that don't

                  Comment

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