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Old 7th August 2003, 10:52 AM   #1
red is offline red  Romania
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Default Pc Oscilloscope

I know you have already disscused the topic but I have a question.Are they any good this kind of osciloscopes?And do u happen to know any schematic that is easy to build ?
I've searched the net but i didn't find any I could use,because I want to build it my self.Please forgive my ruddness but I hope someone will answer me.
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Old 7th August 2003, 11:08 AM   #2
ALW is offline ALW  United Kingdom
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The Pico instruments are pretty good (www.picotech.com) and have additional functionality like data-logging and FFT.

The problem is often that a PC is less than ideal (unless you have a laptop / portable) and a real 'scope is much better for moving to the circuit, rather than moving the circuit to the PC.

The other issue is you have to be very aware of the limitations of digital scopes in terms of Nyquist etc. if they are not to mislead and show things that aren't really there.

A used 'scope is likely to be very useful for years to come, even a basic 10-20MHz 'scope will tell you all you need to know for most analogue work.

I use a 20MHz real 'scope, and a PC-based FFT analyser - a relatively cheap soundcard can get you 24bit / 96k resolution for little outlay.


Andy.
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Old 7th August 2003, 12:27 PM   #3
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If you really want to build one yourself from scratch try a search for bitscope.

If you want to try a kit try Velleman.
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Old 8th August 2003, 10:41 PM   #4
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Default Re: Pc Oscilloscope

Quote:
Originally posted by red
I know you have already disscused the topic but I have a question.Are they any good this kind of osciloscopes?And do u happen to know any schematic that is easy to build ?
I've searched the net but i didn't find any I could use,because I want to build it my self.Please forgive my ruddness but I hope someone will answer me.
---------------------------------------------------
For the amount of money asked for 16 bit pc scopes, you will do far better getting a used 100 MHz CRT with delay function, say for $500 or less. This way, your traces are much more noise free. By all means then buy a software spectrum analyser for $300 with a good 24/96 soundcard with low thd+n.
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Old 10th August 2003, 12:05 PM   #5
red is offline red  Romania
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Thank you guys.I guess I find one to buy since u told me the unpleasent aspects of this job.
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Old 10th August 2003, 03:19 PM   #6
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red I posted a free pc based scope and frequency counter programs on another thread

DIRT®
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Old 13th August 2003, 04:18 AM   #7
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Quote:
Originally posted by JOE DIRT®
red I posted a free pc based scope and frequency counter programs on another thread

DIRT®

Dirt, I searched the entire forum and cannot find this post. Could you elaborate?

Nik
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Old 13th August 2003, 11:52 AM   #8
Henckel is offline Henckel  Denmark
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Hello

the following link should help you

http://www.dazyweblabs.com/shannonsoft/page3.html

Morten
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Old 13th August 2003, 02:42 PM   #9
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[QUOTE]Originally posted by Henckel
[B]Hello

the following link should help you

http://www.dazyweblabs.com/shannonsoft/page3.html

--------------------------------------------------------
The SA3000 spectrum analyser doen't work, just produces blank spectrum analyser screen with no buttons!! Does anyone know why?
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Old 13th August 2003, 03:02 PM   #10
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here it is>>>>>>>>>
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File Type: zip osc251.zip (88.5 KB, 84 views)
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