[sdiy] DSO recommendation please

[cheater cheater]

Hi Bert,
that's not a problem of the bit depth - it's a problem of the
reconstructive algorithm used to display the wave... A sinewave can be
sampled perfectly well in 8 bits if the reconstructive algorithm is
matched to the ADC..

D.

On Sun, Apr 4, 2010 at 13:50, Bert Vermeulen <bl.vermeulen at gmail.com> wrote:
> A big problem with these scopes is the 8 bit. Look at how a signal
> show. A sime wave looks always distorted.  I find the result of these
> scope bad. I prefer a normal scope.
>
> Bert
>
> 2010/4/4 Tom Wiltshire <tom at electricdruid.net>:
>> Thanks for all the pointers everyone.
>>
>> I've got a more specific question now. Amongst scopes in my price range,
>> some seem to have better displays and less storage memory, others smaller
>> displays and bigger memory. The difference can be significant. The cheap
>> OWON scopes have 6000 samples memory, whereas the cheap Rigol scopes have 1
>> or 2 million.
>>
>> Which of these two parameters is the most important in your opinion?
>> Presumably the ability to zoom in substantially mitigates against the
>> smaller screen.
>>
>> Thanks,
>> Tom
>>
>>
>>
>> On 3 Apr 2010, at 20:39, Neil Johnson wrote:
>>
>>> Hi,
>>>
>>> ASSI wrote:
>>>>
>>>> It is much easier to do that with a logic analyser that understands
>>>> the serial protocol and shows you what the signals _mean_ rather than
>>>> just wiggles.  Again, to that end I've bought a USB2.0 based one from
>>>> www.saleae.com (actually through www.elmicro.com since I bought a
>>>> bunch of other stuff, too).  It goes up to 24MHz if used on it's own
>>>> highspeed USB port, which is good enough for what I want to look at.
>>>
>>> For USB logic analyser both myself and Peter Ullrich recommend the
>>> Intronix LA1034 ones:
>>>
>>>   http://www.pctestinstruments.com/
>>>
>>> Cheers,
>>> Neil
>>> --
>>> http://www.njohnson.co.uk
>>>
>>>
>>>
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