Hello all, new member here - apologies if this has been asked before. I did search.
I apologise for the length of this post - I tried to convey as much info as possible.
My primary interest is audio equipment (strictly hobbyist).
I do however like to measure what I build, and have some PC software and a FocusRite Scarlett 2i2 V2 for this purpose.
However, the frequency response is limited to around 80 to 90k at best with this setup, and I would like to measure beyond this.
Ideally I would like to measure to 500kHz or so.
Initially I purchased a Picoscope 2204A and used FRA4Picoscope
https://bitbucket.org/hexamer/fra4picoscope/wiki/Home to perform frequency response and phase plots (but using a DLL provided with Excel).
Unfortunately the AWG in the Picoscope 2204A is limited to 100kHz, so this proved to be a limitation for me.
I also currently have an Owon SDS5032, however it's a struggle to get bode plot data out of that scope, despite having USB and a supplied application (I have tried several of the opensource offerings, however most of those are written for the SDS7102 and don't seem to return the correct data from my scope).
I then bought a Velleman PCSU200 which is not bad however the software is appalling, and it lacks any alternative so that's going.
I have since researched many options, and am struggling to come up with something suitable.
I have a very limited budget, and have looked at several of the device mentioned on this very blog including the Hantek / Sainsmart / Owon VDS102x / Intrustar etc. all of which seem to have there limitations - but as I'm only looking to perform basic audio measurements I don't believe sampling buffers / speed etc. are crucial to my requirement?
I've seen the Digilent Analogue
explorer Discovery which looks to be a good device, however I feel it might be using a sledgehammer to crack a nut for my requirement.
Additionally I have also looked at buying a Picscope 2206B (AWG extends to 1Mhz) however this is also costly...
So what would I like:
- FFT / bode plotting
- Downloadable data
- Linux compatibility would be nice (to enable scripted testing)
- An onboard DDS generator
- USB connectivity *or* a method to store data (if not a USB scope)
I would appreciate any suggestions.
Thanks in advance,
Tony.
EDIT: I should have said - budget is £300 absolute maximum, and I would like to spend a lot less if possible!
EDIT(2): I'm just exploring options that I may have missed - for example I also found the 'Tsunami' (Arduino based audio analyzer)
https://www.crowdsupply.com/arachnid-labs/tsunami - but I feel it's expensive for what it is. (£88 in the UK - and the only stock I could find).