On Sat, 07 Mar 2009 17:17:42 -0500, the renowned Rube Bumpkin <Someone@somewhere.world> wrote:>Spehro Pefhany wrote: ><SNIP> >> >> There is an irritating trend to charge additional fees for digital >> 'scopes to enable firmare for the I2C, SPI, RS-232 etc. >> >> >> Best regards, >> Spehro Pefhany > >So, you don't think that the extra SW effort required to convert a >captured analog stream to a digital stream, then display it >appropriately, should be paid for somehow? > >RBThey're free to bundle or unbundle whatever they like-- it's their product and their USP. They can paint their low-end 'scopes puke green and charge extra for a decent color if they like. But it will be irritating. My point is that the OP should be aware that if such features are mentioned in the datasheet, or even appear to be present on the on-screen menus, they may not actually be enabled (at the base price). Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
Which oscilloscope to go for?
Started by ●March 7, 2009
Reply by ●March 8, 20092009-03-08
Reply by ●March 17, 20092009-03-17
Dear All, Thanks for all your valuable suggestions. As per your suggestions we are planning to use an Digital Storage Oscilloscope. We are going for a 100MHz 2 Channel Color Digital Storage Oscilloscope with sampling rate 1GS/s and inbuilt RS232 & USB connectivity. Thanks Faiyaz>On Sat, 07 Mar 2009 06:05:58 -0600, "faiyaz" <faiyaz.pw@gmail.com>wrote:> >>Dear all, >> >>I am working on a hardware which has AT91SAM7S64, which works on 18.432 >>MHz main clock. This is the maximum frequency which can be seen on >>hardware. Now we are planning to buy an analog oscilloscope, we haveseen>>several 30 MHz , 60 MHz and 100 MHz oscilloscopes. The 100 MHZ scopehas>>the least rise time - 3.6 nS, for 60 MHz it is 5-6 nS, 30 MHz hasaround>>11 nS. Can you suggest what bandwidth we should go for? >> >>Also if there is anybody who is from India and if used Scientific orAplab>>Oscilloscopes? If yes than can you evaluate and compare them? > >A digital scope will be much more useful for any processor related work.>Lower-end digital scopes do have limitations so it can sometimes beuseful to have an analogue one>available. If you really want a decent analogue scope, find a used Tek2465 or similar, which will>be way better than any of the few analogue scopes still available, buteven a cheap digital will be>a lot more useful than the best analogue for most of the time. > >the order of usefulness would be : >1) low-end Digital scope >2) low-end Digital scope plus good (i.e. used Tek) analogue scope >3) mid to high-end digital scope (deep memory, intensity display,preferably MSO) - no need for>analogue once you have the fast update/intensity functionality. > >