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

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2N3055:
@Rich@RohdeScopesUSA

Hello Rich!

I have a few questions about RTM3004 that are not very clear in datasheets, if you don't mind clarifying it for me.

1. RTM3000/4000 don't seem to have VGA/HDMI monitor out ?  Is this permanent design decision, or is there possibility/plan that you might make some addon module (like Keysight has on dso3000)?
2. Does search function work on history buffer (segmented memory)? No mention of it anywhere that I could find. If it doesn't, that is a no purchase decision for me, and would be my recommendation to anyone not buy scope with 400 MS of history buffers and no search function on it.
If search doesn't work on  history buffer (segmented memory), is that temporary (as in: you didn't make it yet but will soon) or no plans to make that functionality?
3. Looking at the docs, it seems that there is no search whatsoever on I2C, SPI and UART protocols?  If that is true, is that decision temporary ? Surely people who would buy this scope would need this.

Thank you for you time and effort.

Best regards,

Sinisa

mikeselectricstuff:

--- Quote from: 2N3055 on September 14, 2018, 06:54:33 am ---@Rich@RohdeScopesUSA

Hello Rich!

I have a few questions about RTM3004 that are not very clear in datasheets, if you don't mind clarifying it for me.

1. RTM3000/4000 don't seem to have VGA/HDMI monitor out ?  Is this permanent design decision, or is there possibility/plan that you might make some addon module (like Keysight has on dso3000)?

--- End quote ---
It doesn't really need it as remote front-panel via ethernet is pretty much realtime. You can use something like a RasPi with a web browser, though I'm not sure how fast this is. It would be nice if they offered a ready-to-go SD card image to do this, or maybe offered a packaged solution.
https://youtu.be/mcgJSKxj0i0?t=267


--- Quote ---3. Looking at the docs, it seems that there is no search whatsoever on I2C, SPI and UART protocols? 

--- End quote ---
Correct

--- Quote ---If that is true, is that decision temporary ? Surely people who would buy this scope would need this.

--- End quote ---
Does seem a strange limitation as there is search on CAN

Rich@RohdeScopesUSA:

--- Quote from: aminor on September 10, 2018, 05:59:10 am ---Hi Rich,

I just bought two units of RTB-2002. One with MSO upgrade and 100MHz. The other one is a basic unit. I just manage to play with the basic unit at most. I think i have got some bug on the basic unit with latest firmware (02.121) :


* Day 1 - Inverse Brightness : Actually was testing enabling and immediately disabled it. but the signal intensity went very dim and it won't revert back to original state. Situation : 1st time ON device. Solution : secure erase
* Day 2 - Zoom : the vertical scale on zoom windows off by a lot (refer pic) that nothing appear on the zoom window. I need to slide down (Zoom Window) to actually see the zoomed signal while the 'Zoom Square' (Window above) is covering on un-populated area. Meanwhile, pic shown - Zoom window vertical scale start at 150.17mV while the above window start at around -100mV and end at 10mV approx. Situation : 1st time on both channel after trimming the 2nd probe. Noticed it on the square wave gen Zoom, P0. The day before i was playing with FFT. Everything went well with Zoom before this. Problem occur in the morning the other day. I always turn off the Power Source before went to sleep. Solution : secure erase
Sorry I just thought of taking pics when already on my way to 'secure erase' all settings. I need to erase two times in two days in a row after receiving the scope.  problem goes away everytime I 'secure erase' I thought the scope already been a while in the market. why there are too many bugs on my 1st two days?

Please advise.

P/S : Autoset also might be the culprit. I don't know

How do I get previous stable version firmware?

--- End quote ---
Hi Aminor - thanks for the questions.  A couple quick updates:

For the inverse brightness, we invert how the brightness works (0% is full brightness, 100% is dark) so you can see infrequent events easier.  But we maintain the intensity setting.  So if you have adjusted it to closer to 0% to be able to see the very rare events, when you switch back it will need to be adjusted in brightness the opposite way.

We know of the zoom bug.  It has been difficult to reproduce, but it is being worked.  Hopefully it will be solved in our next FW update coming later this year.

Just an FYI - secure erase is a pretty brute force method to adjust things.  In general, I'd suggest using Preset instead.  It won't adjust things like the intensity setting (you'll still have to adjust that using the multi-purpose knob), but it does bring the scope back to a known setup for most things without erasing the internal storage.

Enjoy your new scopes!

-Rich

2N3055:

--- Quote from: mikeselectricstuff on September 14, 2018, 07:55:35 am ---
--- Quote from: 2N3055 on September 14, 2018, 06:54:33 am ---@Rich@RohdeScopesUSA

Hello Rich!

I have a few questions about RTM3004 that are not very clear in datasheets, if you don't mind clarifying it for me.

1. RTM3000/4000 don't seem to have VGA/HDMI monitor out ?  Is this permanent design decision, or is there possibility/plan that you might make some addon module (like Keysight has on dso3000)?

--- End quote ---
It doesn't really need it as remote front-panel via ethernet is pretty much realtime. You can use something like a RasPi with a web browser, though I'm not sure how fast this is. It would be nice if they offered a ready-to-go SD card image to do this, or maybe offered a packaged solution.
https://youtu.be/mcgJSKxj0i0?t=267


--- Quote ---3. Looking at the docs, it seems that there is no search whatsoever on I2C, SPI and UART protocols? 

--- End quote ---
Correct

--- Quote ---If that is true, is that decision temporary ? Surely people who would buy this scope would need this.

--- End quote ---
Does seem a strange limitation as there is search on CAN

--- End quote ---

Thanks for the info! Speaking of, thanks for the videos, nice work !
You have been very helpful to clarify some things about R&S scopes..

Truth is, I like RTM3000 concept, I have great admiration for R&S (and old HAMEG) as T&M company and their engineers capability to create great pieces of test equipment.
I'm on a verge of getting RTM3000 and need to clarify few more things that might seem little but they are huge.

1. Segmented memory without search is not very useful. Simple Rigol DS4000 has that for much less money.
2. Not having search on 3 most used serial protocols on the planet ? That can only be mistake... Why on earth would you do that on purpose?

If those are omissions that are not implemented yet, but will be soon, I can accept that. As I said many times before, it is CRAZY hard to make such a sophisticated product.
I would buy RTM3000 right now, if they promised (officially) that is something not yet implemented but will be soon.

If they don't have intention to implement it, I cannot use that scope for my purpose. I will have to buy something else.
It would make scope very unfit to be my primary MSO.
Of course I would still respect honesty from manufacturer to say it like it is...

So I would still like if Rich@RohdeScopesUSA would be so kind to help me make my final decision and clear this up for all of us. It would be greatly appreciated..

Best regards to all..
Sinisa

mikeselectricstuff:

--- Quote ---1. Segmented memory without search is not very useful. Simple Rigol DS4000 has that for much less money.

--- End quote ---
All depends what you want to do. Main advantage of segmented is to capture multiple infrequent events so you can scroll through them later, don't think I've ever had the desire to search through though, just step manually, but I can see that search would be useful for some situations.

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