Discussion in 'General Electronics Chat' started by Icircuit, Jan 14, 2011.
Is a 300 MHz scope all that much better than a 100 MHz one?
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.
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.
http://www.techrecovery.com 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.