Portable oscilloscopes

[captainobvious]

I'm looking to pick up a portable scope-meter. I was recommended the TPI 440 which I saw in action and looks pretty nice.
I also came across this Owon HDS1021M unit which seems to have better specs and a nicer (color tft lcd) screen. http://www.testequipmentdepot.com/ow...s/hds1021m.htm
Anyone have feedback to offer on these (or others?) Looking to keep it under $300.

Thanks !

[BigAl205]

IIRC, Glenn has the Velleman SA-HPS140I and seems to like it a lot...but that Owon does look cool, and the reviews are favorable.

BTW...Amazon has a better price http://www.amazon.com/HDS1021M-Handh...m_sbs_indust_4

[captainobvious]

Thanks Al, yeah I had seen that price on Amazon as well- very nice. I linked the other site since it had actual specs. As for the Velleman HPS140i, check out this price http://www.scopemetrics.com/cart/ind...ct_detail&p=10
If it can do what I need, that would be an excellent choice as well. Waiting for some feedback from Glenn since he has used it. It doesn't look like it has DMM features, but at that price, I could always buy a separate DMM if I wanted to.

[WOOSEY]

We have the HPS10 in our workshop and that's also a nice device..

[captainobvious]

Thanks!

I ended up ordering with the OWON HDS1021M unit. Very nice specs and a great color tft lcd screen to make viewing much better. It was only $205 on Amazon so tough to pass up.

[Glenn]

I had this scope http://www.vellemanusa.com/products/...=enu&id=351263

I found that I was as close with a scope as I was by ear so I rarely used it. I usually adjust by ear and then use a DMM and a 60Hz test tone to get the gains as close as possible.

[Fricasseekid]

Why not the DSO Nano?


Sent from my Springfield XD with love!

[captainobvious]

I wanted good multimeter functions as well in one unit.

BTW, the screen resolution on the OWON makes it much easier to determine a clipping point, not to mention it's just much easier to see/read period (than the TPI). I was just out checking output on the scope to test it and it looks great.

[captainobvious]

And a quick vid of it reading the waveforms of sine waves on a test cd. They change every ten seconds (and i'm playing with time and sensitivity here to get a larger view of the waveform for ease of identifying clipped signal...didn't see any though). Sorry for the motion, trying to adjust scope, hold camera and operate the remote control at the same time- doesn't work well.

[BigAl205]

You might also consider getting one or two of these braking resistors to make a voltage divider for testing amplifier outputs


PS...I ordered the 4-pack that he sells, only to find out that I would have saved $20 by ordering them individually