Hi,
sorry but i got lost in all the 3Ds talking of scopes and i have not been able to understand much.
I am a very beginner and without any real knowledge, so i need something easy to use.
My main, almost only, interest is to check the noise from some DIY power supplies up to 100 V for audio project (preamps).
So I suppose i do not need a big bandwidth, but maybe sensitivity ?
To start i would like a cheap but easy to use scope with a sub connection for the PC
I saw a Member recommending something like this one here
Hantek 6022BE PC-Based USB Digital Storag Oscilloscope 2Channels 20MHz 48MSa/s | eBay
As i said i need it only to check noise out from power supplies
And possibly the ability to generate a sweep 20-20.000 Hz would also be very very much appreciated
Thanks a lot and kind regards,
gino
sorry but i got lost in all the 3Ds talking of scopes and i have not been able to understand much.
I am a very beginner and without any real knowledge, so i need something easy to use.
My main, almost only, interest is to check the noise from some DIY power supplies up to 100 V for audio project (preamps).
So I suppose i do not need a big bandwidth, but maybe sensitivity ?
To start i would like a cheap but easy to use scope with a sub connection for the PC
I saw a Member recommending something like this one here
Hantek 6022BE PC-Based USB Digital Storag Oscilloscope 2Channels 20MHz 48MSa/s | eBay
As i said i need it only to check noise out from power supplies
And possibly the ability to generate a sweep 20-20.000 Hz would also be very very much appreciated
Thanks a lot and kind regards,
gino
Easy one first. For a 20 to 20kHz sweep you can use "Audacity"
http://www.diyaudio.com/forums/soft...ing-using-audacity-get-you-started-guide.html
The scope I have no experience of other than to say that these cheap PCB based tools are of limited value compared even to a modest spec analogue scope. The spec mentions "input gain range" of 20mv to 5 volts. If that is an equivalent of "volts per division" then its limited. A typical analogue scope would go down to 1mv.
For the price though, they are very good and you will learn a lot.
http://www.diyaudio.com/forums/soft...ing-using-audacity-get-you-started-guide.html
The scope I have no experience of other than to say that these cheap PCB based tools are of limited value compared even to a modest spec analogue scope. The spec mentions "input gain range" of 20mv to 5 volts. If that is an equivalent of "volts per division" then its limited. A typical analogue scope would go down to 1mv.
For the price though, they are very good and you will learn a lot.
Thank you very much indeed. I will study this immediately.
Thanks again
This is really my main need. And actually a 1mV sensibility would be very nice indeed.
I wonder which other models of pc based scopes could give me this kind of value.
Are they much more expensive ?
i could do a little bigger effort for something that i could use also when i will have some more experience (i.e. not a toy)
In particular i like very much to get noise spectra like this one here
An externally hosted image should be here but it was not working when we last tested it.
Thanks a lot and kind regards, gino
Last edited:
I honestly can't really advise on the scope, I've no experience of the PC based ones at all. The picture looks as though its using something far more sophisticated and higher specced tbh, particularly when you look at the levels and frequencies.
Wait and see what others think
Thanks a lot again. Kind regards, gino
You look for many bits of resolution and the audio spectrum. Just AC couple with a capacitor to a PC soundcard and use a program like ARTA.
Hi and thanks for the suggestion
I guess you mean this one
ARTA Download
I will try it for sure. Thanks a lot.
gino
I might want to consider taking a look at Visual Analyzer as well!
http://www.diyaudio.com/forums/software-tools/212908-exploring-visual-analyser-va.html#post3028849
It is a sound card based scope that does most everything you would need within the audio range.
It is great for learning the basics of scope controls as well as many other very viable tools such as an RTA a THD meter ,and , impedance measurements that are included and it is free!!
Once you learn calibrate and work with it you will find that it is very accurate!!
http://www.esldiy.com/index.php?topic=176.msg310#msg310
But you can't beat a good decent quality analog scope either!!!
FWIW
jer
http://www.diyaudio.com/forums/software-tools/212908-exploring-visual-analyser-va.html#post3028849
It is a sound card based scope that does most everything you would need within the audio range.
It is great for learning the basics of scope controls as well as many other very viable tools such as an RTA a THD meter ,and , impedance measurements that are included and it is free!!
Once you learn calibrate and work with it you will find that it is very accurate!!
http://www.esldiy.com/index.php?topic=176.msg310#msg310
But you can't beat a good decent quality analog scope either!!!
FWIW
jer
Last edited:
Hi and thanks a lot ! lots of functions indeed
I am mostly interested in noise spectra from power supply
But some more flexibility is clearly welcom
I will study it
But you can't beat a good decent quality analog scope either!!!
FWIW
jer
What can be considered a decent entry level for this ? how much would it cost ? just to have a reference
Thanks again, gino
Something like this would be a minimum,
Hameg 20MHz Oscilloscope HM203-6 GWO | eBay
No traditional analogue scope will do FFT analysis which is what your picture shows.
Hameg 20MHz Oscilloscope HM203-6 GWO | eBay
No traditional analogue scope will do FFT analysis which is what your picture shows.
That's a sweet deal Mooly!!
I have had a 40Mhz Hitachi V-425 for the last 30years and has never failed me.
I haven't needed anything faster until recent years but it still suits me well for my audio and video work.
If I were to get another one the 100Mhz scopes are a fine bargain these days.
If your budget allows I have seen some very nice 300Mhz to 400Mhz analog Tektronix scopes for less the $400!!
That is a far cry from the $1000 I paid for mine brand new back in about 1984!!!
jer
I have had a 40Mhz Hitachi V-425 for the last 30years and has never failed me.
I haven't needed anything faster until recent years but it still suits me well for my audio and video work.
If I were to get another one the 100Mhz scopes are a fine bargain these days.
If your budget allows I have seen some very nice 300Mhz to 400Mhz analog Tektronix scopes for less the $400!!
That is a far cry from the $1000 I paid for mine brand new back in about 1984!!!
jer
If you want to measure the noise in the audio band, your sound card is the first choice because of its high sensity - unrivalled by any oscilloscope.
But if you want to trace the hiqh frequent noise like voltage ripple and other peakes, you will need an oscilloscope.
Bandwith 10..20MHz will do.
I would prefer a stand-alone oscilloscope, not a USB-scope. Comparing prices USB-scopes are expensive sometimes.
So I would recommend some 2-channel oscilloscope from Rigol in the price region of 300 Euro.
Used analog scopes are bulky and do not offer any signal storage, a feature you will love instantly!
But if you want to trace the hiqh frequent noise like voltage ripple and other peakes, you will need an oscilloscope.
Bandwith 10..20MHz will do.
I would prefer a stand-alone oscilloscope, not a USB-scope. Comparing prices USB-scopes are expensive sometimes.
So I would recommend some 2-channel oscilloscope from Rigol in the price region of 300 Euro.
Used analog scopes are bulky and do not offer any signal storage, a feature you will love instantly!
It was first out of the bag tbh but its the sort of thing that would be a good first scope.
(We used to use Hitachi scopes at work back in the 90's (The 525 ???) the one with on screen manual cursors. They were very good. Used to use Trio as well. These days I use a Hung Chang 5510 which is a 100MHz bandwidth with true dual timebase but I'm not sure I'd recommend the brand as I've had a couple of problems with mine. Latest was a failed "X" deflection transistor)
Yep, Mine has the Onscreen cursors and it was the best decsion I had ever made for the times.
I would never get another one with out it.
I was just looking and saw a Tektronix 2225 50Mhz for ($)21.00 with less than a day to go!!
The only thing I regret was not getting the version that had a Dual Timebase as well.
jer
I would never get another one with out it.
I was just looking and saw a Tektronix 2225 50Mhz for ($)21.00 with less than a day to go!!
The only thing I regret was not getting the version that had a Dual Timebase as well.
jer
Thanks again. Most of the terms are unknown to me
I will start or with the SW or the simple usb interface
I need to understand i little what i am doing ... then with some experience maybe an upgrade would be reasonable
But now i have nothing
Thanks a lot again, gino
If you want to measure the noise in the audio band, your sound card is the first choice because of its high sensity - unrivalled by any oscilloscope.
But if you want to trace the hiqh frequent noise like voltage ripple and other peakes, you will need an oscilloscope.
Bandwith 10..20MHz will do.
I would prefer a stand-alone oscilloscope, not a USB-scope.
Comparing prices USB-scopes are expensive sometimes.
So I would recommend some 2-channel oscilloscope from Rigol in the price region of 300 Euro.
Used analog scopes are bulky and do not offer any signal storage, a feature you will love instantly!
Hi and thanks a lot
Yes mainly that also because i think that noise outside the audio range is not so critical for analog audio equipment, maybe for digital.
Now i have to try something ...
Thanks again, gino
That's a sweet deal Mooly!!
I have had a 40Mhz Hitachi V-425 for the last 30years and has never failed me.
I haven't needed anything faster until recent years but it still suits me well for my audio and video work.
If I were to get another one the 100Mhz scopes are a fine bargain these days.
If your budget allows I have seen some very nice 300Mhz to 400Mhz analog Tektronix scopes for less the $400!!
That is a far cry from the $1000 I paid for mine brand new back in about 1984!!! )
jer
Hi and thanks for advice and offer
I am always on the move and for that a pc based solution is most interesting to me even if i understand it will have big limits
In the future maybe ...
Thanks again, gino
Hi it is me again
In the end i bought an Hantek 6022be that i hope to receive soon.
As i am impatient i understand that using a normal usb sound card and a SW Oscilloscope i can turn the pc in a digital scope
Could you suggest me a nice software oscilloscope for win 7 ?
Possibly not very expensive but decent in performance.
Thanks a lot indeed.
Kind regards, gino
In the end i bought an Hantek 6022be that i hope to receive soon.
As i am impatient i understand that using a normal usb sound card and a SW Oscilloscope i can turn the pc in a digital scope
Could you suggest me a nice software oscilloscope for win 7 ?
Possibly not very expensive but decent in performance.
Thanks a lot indeed.
Kind regards, gino
Visual Analyzer, It is Free !!!
http://www.diyaudio.com/forums/software-tools/212908-exploring-visual-analyser-va.html#post3028849
I show here that it nearly out does my scope!!!
The Visual Analyzer VA 2011
and more,
http://www.diyaudio.com/forums/software-tools/212908-exploring-visual-analyser-va-3.html#post3383659
You can get it here and the link to the latest version is found in the forum once you sign up to it,
Visual Analyser
I see that VA2014 is now on the main download page,
Download
Cheers!!
jer
http://www.diyaudio.com/forums/software-tools/212908-exploring-visual-analyser-va.html#post3028849
I show here that it nearly out does my scope!!!
The Visual Analyzer VA 2011
and more,
http://www.diyaudio.com/forums/software-tools/212908-exploring-visual-analyser-va-3.html#post3383659
You can get it here and the link to the latest version is found in the forum once you sign up to it,
Visual Analyser
I see that VA2014 is now on the main download page,
Download
Cheers!!
jer
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.