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Which lathe (err... Scope) Rigol

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PekkaNF:
Thank you Dave,

Looks like Rigol has now everywhere same price and same offer for all SW extras for free. Very good thing.

I am very tempted to go for Rigol DS2102E 100MHz 2CH
https://www.batronix.com/shop/oscilloscopes/Rigol-DS2102E.html

Based on all the information I have it offers clear improvement on my current scope.

Can you measure your scope input noise? I'm interested noise figure un terminated and terminated with blank cap or 50 Ω terminator. I'm particularry interested about 50 Ω input noise.

I checked my scope (DS1052E) one input at the time input BNC open and then blanked with 50 ohm terminator. Noise figure was pretty good, constant and low. My scope does not go down from 2 mv/div and there noise looks pretty good.

Pekka

Bluechip:
Hi Pekka

I'll have a go at it later on for you.

Not sure what you think the S/W options are included. Click the 'Accessories' tab, you will see the bundle I got chucked in for free on  mine at the top.

Serial decode, 56Mpts etc. etc.

You need to check  :thumbup:

Mine:  Click accessories tab 

 www.batronix.com/shop/oscilloscopes/Rigol-DS2072A.html

Dave

PekkaNF:
Biskit....

Couple times of the year Rigol offers Option Bundle for free. Now I don't see on this model on this shop. Pretty sure it is on sale somewhere.

Did some more Spesification and Review trawling and looks like entry scope market is such, that Keithley/Tektronix really don't want to sell for people that buy with their own money and pay real price. Pretty sure they are competive for institutions and big companies...Just checked Tektronix TBS1000B Series, 2 Channel, 100 MHz, 2 GSPS
http://fi.farnell.com/tektronix/tbs1102b/oscilloscope-2ch-100mhz-2gsps/dp/2383218

Display Memory Depth:    2.5 kpts - you have to be kidding!

In principle I like simple no-nonsense scope that does basic thing well and does only that, but honestly: it should have least semidecent analog front end, least 50 ohm option and 3 Ch (usefull at encoder stuff and serial signals) or 2+1 Ch configuration with advanced triggering to convince me to reach for wallet. But I understand really big corporatios have to slap on those products 50% overhead and therefore very little in the budget is allocated on basic engineering of basic units.

I understand that for students to many options might be intimidating, but "home/basic" button would do that. I liked single button "store" function to pen drive, but then I read that it is not as straightforwars as seen on TV.

Pekka

eskoilola:
Pekka,

Those prices are horrific.

Like someone - probably mr. Gotteswinter - said, the chinese Lathes should be considered as building kits of lathes. To achieve durability, stability etc, one has to do some extra job.

Maybe a scope cannot be compared with this but for example if the sensitivity and noise levels are not adequate, then just build a Textronix grade preamplifier with all possible terminations and there You go.

For me the Siglent SDS1202X-E would be quite tempting as it has all the needed base structure and enough BW to cope with most of the carbage one can present to it.

This review is quite unpolarized but unfortunately in Deutsche Sprache. Basically he tells that he had already got one and that had some software faults, they replaced that and this one "seems to be quite OK". At leas he has a decent reference - A Rohdeschwartz scope .... Those devices used to be really reliable and did not leave much to wish for - except for lower prize. I have a basic signal generator (9kHz - 2GHz) made by this company and that device is really something. If You can find a device made by them - those are usually quite good.

PekkaNF:
Thank you.

Went through that video twice. Second time with English automatic translation, that part of the time helped me a lot to understand what was going on (my German is rusty, studied it few years).

That video was interesting, but most of the time I had no idea what was the input signal and what response was supposed to be.

Like the 200 MHz, but not sure how does it handles the basic stuff, somehow it feels bit like a Acer of the PC:s

Bit late to get decent old stuff here. Eflop and Balmer killed the Nokia and their lab stuff has trickled out. To buy R&S stuff at list prices is not my option.

At this price range big time brand name are out of game and second choices seem to fare good enough.

Some more specification reading and you tube reviews to watch.

Pekka

*typos

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