Re: First oscilloscope


<garethrichardadams@xxxxxxxxxxx> wrote in message
news:68f23fad-391a-466a-bfe4-4d323052027a@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Hi all,

I do pic programming, Ir circuits, analogue circuits and use 433MHz AM
TX/RX.

I want to get an oscilloscope to analyse the circuits I build and,
currently, to analyse the output from IR remote controls. However, I
know nothing about them!!

Can someone tell me what I need to look for in an oscilloscope and
make recommendations on what would be suitable?

Thanks


You can get you a vellman PC500 scope for about 300 bucks wich is suppose to
be 50mhz(which is 50MSPS and I don't see how it sends all that through the
parallel port which runs at most a few mhz or so).

The only reason I recommend this scope now is because they finally
implemented a history function. When I first brought it I thought it would
have this feature but didn't. I complained on the msg board and was told
that it was impossible and I didn't understand how a DSO worked(by the
company). So I gave up and 2 years later I tried again and somehow got
through to the guy that maintained the software and he was able to implement
it. The software is definitely not the best though but works.

So the point is that with that scope you can use it both as a oscilloscope
and a logic analyzer(although a bit crude it does work). This is really the
only benefit it has is that its cheap and can do the two most important
things needed for most apps. It is definitely not the best though but you
get what you pay for. If you have more money then I'm sure there are other
products that would be better. (in fact you can get cheap dedicated logic
analyzers too now that use the pc)


I would have to say that the real issue with the scope is mainly the
software though. But you can get used to it and maybe in the future they
will release the protocol used so people can write there own software. (they
do have something like it but not full featured)


.

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