Re: How much does brand matter with regards to oscilloscopes?
- From: "David L. Jones" <altzone@xxxxxxxxx>
- Date: 20 Apr 2007 00:28:18 -0700
On Apr 20, 11:40 am, Michael <nleah...@xxxxxxxxx> wrote:
Hi - I'm looking at getting an oscilloscope for myself. Prices range
drastically for oscilloscopes - from nearly free for 70s era
equipment, to tens of thousands of dollars for really nice stuff.
The name brands (Tek, Agilent, etc.) seem to (not surprisingly) always
be the most expensive. Are they really that much better? I mean, for
example, I ran into this scope:http://www.tequipment.net/OWONEDU5022.html
(25MHz, color LCD, USB, battery powered, 2 channels, $368). An
equivalent scope from a better known brand would I suspect be well
over a thousand dollars.
Not really, look at the specs.
Are the name brands worth the cost? Do you get what you pay for?
Yes and no.
A *free* 20 year old scope can easily be better than a $1000 brand new
one.
Yes, the good brands are almost always worth the extra $$$$, when it
comes to a digital scope, you do get what you pay for.
Even Agilent are now re-badging the cheaper Chinese models like Rigol.
You can buy an exact same Agilent 3000 series scope from Rigol for
less.
Although I have not seen one, that Owon unit would fall into the
"suspect" category, I'd be very surprised if it has the performance
(and firmware stability) of other "budget" (but fairly well known)
models like say a Rigol or Goodwill. But the Owon is cheap because of
the specs, only 25MHz analog bandwidth and an effective single shot
bandwidth of around 10MHz (100MS/s / 10). That's pretty awful these
days. But if it suits your needs and that's all you can afford then
it's "worth the money". The big names don't really offer anything with
that low a performance.
I'm curious to know how the Owon performs though.
When it comes to digital scopes, bandwidth, sample rate, and big
memory do not come for free, the more of each you want the more you
will pay.
Old analog scopes on the other hand give unbeatable bandwidth/$$$, but
if you need a digital scope then you will have to pay for it.
Dave.
.
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