ODP: scope

[Roman Sowa]

Hi,

I've got TDS210 since December. It's great!
The display is fast (I don't need any faster)
The triggering works excellent with well defined signals - it's good
to know at what level you trigger. The only trouble I had was
with signals smaller than 0.5 div - my old junky analog scope triggered that
tho...
Pretrigger - up to 9 divs. Trigger delay - many, many screens
Three acquisition modes:
1.sample - usual sampling and suffers from aliasing sometimes
2.mean - (forget the name of it) mean value of 4, 16, 64 or 128 measurements
 good for noise reject
3.peak detect - aliasing free mode, always shows amplitude envelope
of signals that would be aliased in sample mode. With this one I could
easily see 200ns spikes on 2Hz wave - that was the first time I saw them.
Below 100ms/div it comes into scan mode - kida like EKG and no triggering.
Auto measurements of f, 1/f, Vpp, Vrms, Vmean.
and other features...

Drawbacks:
1.Not good for high frequencies and small signals. Maybe it's just my unit,
but when I ground BNC (not an input via menu) on highest sweep and
sensitivity I get something which is way different from straight line.
2.BW=60MHz and nothing more. On my old analog (100MHz) I could
view 300MHz, but here it's more like brickwall, although it's 1GS/s.
3.Seems like it is a little noisy than one could expect, but I couldn't
really
tell since it is my first experience with digital scope
4.The backlight lamp doesn't always turns on. Few times I had to restert
it and then it lit.
5.No battery supply and forget about using it withoud ground pin
in your power outlet
6.Standard probes are too long (if I was picky)
7.Knobs work the way like it was a toy

Bottom line
Good scope for low price. Would bought it again

Roman

> -----Oryginalna wiadomość-----
> Od:	Ian Fritz [SMTP:ijfritz at earthlink.net]
> Wysłano:	7 lutego 1999 20:26
> Do:	DIY list
> Temat:	scope
> 
> Has anybody had any experience using the Tek TDS200 series scopes? I'd
> like to know how well they work, if there are any special quirks and
> especially if the LCD display is difficult to read. Thanks!
> 
>   Ian