I've found the analog discovery most useful for low frequency work.
Not because it is especially great hardware, but it comes with
ready-made software and is relatively affordable.
Often the software that comes with this type of toy is poor and buggy,
but the network analyzer portion is well made in my opinion. It still
picks the spot frequency out of a very noisy switchmode supply with
great dynamic range so you can do control loop analysis. I wouldn't
want to use the scope part of the software for anything, it's crap.
<>
If you want a step up from a sound card with more frequency range and
at least rudimentary input attenuators this is a good choice.
ST
On Fri, May 4, 2018 at 4:21 PM, ebrucehunter via Groups.Io
<Brucekareen@...> wrote:
If you are looking for an audio frequency network analyser, look at Bob Larkin's article: DSP-Based Vector Network Analyser for 10 Hz to 40 kHz in the May/June issue of QEX Magazine. You would have to assemble your own; however, boards and the software have been made available.
Bruce, KG6OJI
