The waveform is repetitive NOT. Any recommendations on a scope to rent ? Gus > On Aug 28, 2009, at 3:40 PM, Bob Blick wrote: > > > On Fri, 28 Aug 2009 15:31:00 -0600, "AGSCalabrese" > said: >> I will be required to measure an analog pulses to a resolution of 8 >> nano-secs. >> Am I correct that this will require a scope that has a bandwidth of >> 250 MHz and a sampling rate of 4 nanoseconds ? > > Bandwidth and sampling rate are not neccessarily tied to each other, > so > different scopes will have different correspondences between them, and > if you are measuring a repetitive waveform you can have a slow > sampling > rate and still yield good results(assuming a quality instrument). I > have > a scope here with the same sampling rate as bandwidth and another with > five times the sampling rate as bandwidth. > > Cheerful regards, > > Bob > > -- > http://www.fastmail.fm - Or how I learned to stop worrying and > love email again > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist