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Date: Mon, 3 Sep 2018 06:53:03 +0000
From: "Peter Stuge (peter AT stuge DOT se) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Equipment
References: <20180902184454 DOT 03C39845C7FD AT turkos DOT aspodata DOT se>
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Hi Karl,

karl AT aspodata DOT se wrote:
> I'm contemplating buying an oscilloscope.

It's a good tool.

> My guess is that for normal analogue and i2c,rs232,spi things I'd
> be happy with a four channel 200MHz one with suitable triggers.

I'd suggest a hardware supported by https://sigrok.org/ for digital
protocols, but having a scope which also has digital inputs is quite
nice, but usually comes with a relatively hefty pricetag.

You'll find the best price/performance ratio from Rigol and/or Siglent.

Rigol is a chinese manufacturer, their equipment works great.

Siglent is a dutch manufacturer, their equipment has more features.

200MHz (and >1Msps, which is important at 200MHz!) is well above the
entry level segment, so if you want something real good I would
expect the instrument to cost 500-1000 EUR.


> But I also want to be able to do pre emi/emc certification test.
> Any suggestion what spec and equipment to use for that...

Sorry - don't know about that part. I think that's another league,
quite likely involving a high end spectrum analyzer. (For the
*un*-expected emissions.)


//Peter