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Rohde & Schwarz Oscilloscopes - Questions/Comments? Let me know!

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2N3055:

--- Quote from: nctnico on July 15, 2018, 08:48:50 am ---19pf seems more likely so I guess the 9pf number is a typo.

--- End quote ---

I agree , but it's not a guessing contest. Datasheet has to be fixed..  For German prices I want German quality. No "Pluses" allowed..
If they want to justify high prices and their noble reputation  then they are held up to a higher standards..   
If not, then what is the difference to the Chinese ? Except Chinese charging much less?

2N3055:

--- Quote from: nctnico on July 15, 2018, 09:55:52 am ---
--- Quote from: 2N3055 on July 14, 2018, 10:45:20 am ---But at this pace, it'll take years... I waited for a 3000 series since last year... Not impressed so far..

I really hope new Rigol DS/MSO7000 shows to be decent performer...  They show an app bundle to be 1500€, R&S is 2500€ ... Basic scopes are not very inexpensive but give them time..

--- End quote ---
I'd be very amazed if the Rigol 7000 series is anywhere near the level of the R&S RTM3000 series at the introduction. However up to 200MHz there are more economic choices and the advantage of buying Lecroy, Keysight, R&S or Tektronix is minimal at best.

--- End quote ---

I actually think Rigol will give it's best to make it as good as possible. And R&S is not so good, firmware is still in flux.. Even with features..
As for what is good deal , full bundle in RIGOL is 1500€, a 1000€ less than others you mentioned. Their base prices are not so small, but they are free to adjust those..

nctnico:

--- Quote from: 2N3055 on July 15, 2018, 10:13:40 am ---
--- Quote from: nctnico on July 15, 2018, 09:55:52 am ---
--- Quote from: 2N3055 on July 14, 2018, 10:45:20 am ---But at this pace, it'll take years... I waited for a 3000 series since last year... Not impressed so far..

I really hope new Rigol DS/MSO7000 shows to be decent performer...  They show an app bundle to be 1500€, R&S is 2500€ ... Basic scopes are not very inexpensive but give them time..

--- End quote ---
I'd be very amazed if the Rigol 7000 series is anywhere near the level of the R&S RTM3000 series at the introduction. However up to 200MHz there are more economic choices and the advantage of buying Lecroy, Keysight, R&S or Tektronix is minimal at best.

--- End quote ---

I actually think Rigol will give it's best to make it as good as possible. And R&S is not so good, firmware is still in flux.. Even with features..
As for what is good deal , full bundle in RIGOL is 1500€, a 1000€ less than others you mentioned. Their base prices are not so small, but they are free to adjust those..

--- End quote ---
1000€ on 10000€ is 10%. Is 10% cheaper worth the risk you get stuck with a lemon? At least the A-brands make an effort to fix the bugs in a timely manner. Still if a piece of equipment doesn't work the way you need it to work out-of-the-box the best course of action is to return it.

2N3055:

--- Quote from: nctnico on July 15, 2018, 10:22:35 am ---1000€ on 10000€ is 10%. Is 10% cheaper worth the risk you get stuck with a lemon? At least the A-brands make an effort to fix the bugs in a timely manner. Still if a piece of equipment doesn't work the way you need it to work out-of-the-box the best course of action is to return it.

--- End quote ---

For 200 MHz 4ch difference is 4500€ to 6700€ (DS7024+bnd  vs R&S RTM3004 +BND) That is 50%.
If you want to buy older model LeCroyWS3024 (not Z, new one) there is a limited time bundle where you get 4ch/200MHz +budle for 4200€.
That one is a good deal. But if Rigol proves to be decent quality, it is a much more powerful scope than old WS3024.

Cheaper 200MHz scopes are not in that class. Only one that comes close is GW Instek. That is a viable option.

New R&S 2000/3000/4000 are new platform, with GUI that is so much more modern than Keysight one.  I like them in general. I like R&S in general.
Their pricing is not attractive though, even compared to Keysight, that shows signs of adjusting prices lately...  Keysight are sorely in need of a new generation of scopes, and if they don't have one ready to release, they will have to decrease prices to buy time...

Market is changing. They will HAVE to start giving basic bundles included in base price. They will have to adjust options prices. It's just nobody wants to be the first one to blink while playing chicken. But, if Chinese make a first move, they might start grabbing market share.

We'll see. Interesting times.
Regards,

mtdoc:

--- Quote from: LaurentR on July 14, 2018, 04:47:21 pm ---The RTB2K datasheet says that the input impedance of the scope is 9 pF ± 2 pF.

This is seems outside of the common compensation range of most passive probes on the market (typically 10-20 pF). Am I confused about the specs or this means only very select probes will be able to compensate properly?

--- End quote ---

The discussion here had me curios, so I did some testing:

I meausured the input capacitance of my RTB2004 with my DE-5000 LCR meter and got 10pF.

I was easily able to properly compensate multiple oscilloscope probes I have laying around including:

Tek p6106, p6136 and p6137 probes and several different cheap chinese probes I had laying around including the ubiquitous p6100.

All had no problem being adjusted to proper compensation.

Interestingly, the 300 MHz RT-ZP03 probes supplied with the scope have a specified input capacitance of 12pF but there is no compensation range specified on the datasheet.

So as David Hess says, probe compensation specs are not rigorous.

Any of the probes you're looking at will work fine the the RTB2004.

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