Discussion in 'General Electronics Chat' started by Icircuit, Jan 14, 2011.

  1. Icircuit

    Thread Starter New Member

    Dec 9, 2010
    Is a 300 MHz scope all that much better than a 100 MHz one?
  2. tom66

    Senior Member

    May 9, 2009
    It's better for measuring 300 MHz signals ;)

    However it is still very much possible to view a 300 MHz signal on a 100 MHz oscilloscope, but voltage measurements are not accurate and you will usually only see the fundamental, no harmonics.

    If you are considering buying a scope as a hobbyist, 100 MHz is the maximum you should ever need. I'd wager most people don't need any more than 50 or 60 MHz scopes. I have a 100 MHz (digitising) oscilloscope and even for high speed video work and high speed digital logic, it is all I have ever needed and more. I would class myself as a hobbyis as I do not have an EE degree.

    If you're however buying it for high-speed/high-tech stuff you need to consider carefully whether you will be going to the point of needing 300 MHz -3dB bandwidth.
  3. marshallf3

    Well-Known Member

    Jul 26, 2010
    Find an old Tektronix 2465, all you'll ever need and it will last you for life.
    Sorry people, I prefer analog scopes far over digital ones. gets them in from time to time or may have something sitting around missing a knob or dented (but still working) they'll let go for a bargain price. Give them a call as very little is listed on their website compared to what they have.